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Courte critique du Lenovo Flex 14 (2019) (i5-8265U, UHD 620, FHD) : un portable moyen à bon prix

Sam Medley, 👁 Allen Ngo (traduit par Prévots), 07/12/2019

A mi-chemin. La version 2019 du Lenovo Flex 14 est plutôt puissante, vu son prix de 800 $. Alors qu’il ne parvient pas à se détacher du lot, c’en est pas moins un convertible au bon rapport qualité / prix.

Lenovo Flex 14IWL
Processeur
Intel Core i5-8265U
Carte graphique
Intel UHD Graphics 620 - 1024 Mo, Processeur: 1150 MHz, intégré, Intel UHD Graphics 620 25.20.100.6519
Mémoire
16384 Mo 
, DDR4-2666 / PC4-21300
Écran
14 pouces 16:9, 1920 x 1080 pixel 157 PPP, multitouch 10 points, BOE BOE06F2, IPS, brillant: oui
Carte mère
Intel Cannon Lake-U PCH-LP Premium
Disque dur
Samsung SSD PM981 MZVLB256HAHQ, 256 Go 
, 237 Go libres
Carte son
Intel Cannon Lake-LP - cAVS
Connexions
3 USB 3.0 / 3.1 Gen1, 1 HDMI, Connectique audio: jack, Lecteur de cartes mémoires: SD / SDHC / SDXC, 1 Lecteur d'empreintes digitales, Brightness Sensor
Réseau
Intel Wireless-AC 9560 (a/b/g/n/ac), Bluetooth 4.1
Taille
Hauteur x Largeur x Profondeur (en mm): 17.8 x 328 x 229
Batterie
45 Wh Lithium-Ion
Système d'exploitation
Microsoft Windows 10 Home 64 Bit
Appareil photo
Webcam: HD
Fonctionnalités additionnelles
Haut-parleurs: 2x 2 Watt, Clavier: chiclet, Rétroéclairage du clavier: oui, 12 Mois Garantie
Poids
1.656 kg
Prix
800 USD
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

381.5 mm 258.1 mm 17.9 mm 2.3 kg328 mm 232.8 mm 19.95 mm 1.8 kg328 mm 229 mm 17.8 mm 1.7 kg327.4 mm 224.8 mm 17.6 mm 1.5 kg306 mm 212 mm 14.7 mm 1.3 kg
SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Lenovo Flex 14IWL
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
80.38 MB/s ∼100%
HP Envy x360 13-ar0601ng
  (Toshiba Exceria Pro M501 microSDXC 64GB)
77.7 MB/s ∼97% -3%
Average of class Convertible
  (7.5 - 197, n=122)
60 MB/s ∼75% -25%
Dell Inspiron 14 5000 5482 2-in-1
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
29.4 MB/s ∼37% -63%
Asus VivoBook Flip 14 TP412UA-DB51T
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
25.3 MB/s ∼31% -69%
Acer Spin 5 SP515-51GN-80A3
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
22.5 MB/s ∼28% -72%
maximum AS SSD Seq Read Test (1GB)
HP Envy x360 13-ar0601ng
  (Toshiba Exceria Pro M501 microSDXC 64GB)
87.4 MB/s ∼100% +3%
Lenovo Flex 14IWL
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
84.73 MB/s ∼97%
Average of class Convertible
  (21.7 - 246, n=120)
74.5 MB/s ∼85% -12%
Dell Inspiron 14 5000 5482 2-in-1
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
31.6 MB/s ∼36% -63%
Asus VivoBook Flip 14 TP412UA-DB51T
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
27.87 MB/s ∼32% -67%
Acer Spin 5 SP515-51GN-80A3
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
24 MB/s ∼27% -72%
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Dell Inspiron 14 5000 5482 2-in-1
Intel Wireless-AC 9560
661 MBit/s ∼100% +1%
Lenovo Flex 14IWL
Intel Wireless-AC 9560
653 MBit/s ∼99%
Asus VivoBook Flip 14 TP412UA-DB51T
Intel Dual Band Wireless-AC 8265
613 MBit/s ∼93% -6%
HP Envy x360 13-ar0601ng
Realtek RTL8822BE Wireless LAN 802.11ac PCIe Adapter
581 (min: 541, max: 615) MBit/s ∼88% -11%
Acer Spin 5 SP515-51GN-80A3
Qualcomm Atheros QCA61x4
489 MBit/s ∼74% -25%
Average of class Convertible
  (28.7 - 678, n=136)
487 MBit/s ∼74% -25%
iperf3 Client (transmit) TCP 1 m 4M x10
Lenovo Flex 14IWL
Intel Wireless-AC 9560
674 MBit/s ∼100%
HP Envy x360 13-ar0601ng
Realtek RTL8822BE Wireless LAN 802.11ac PCIe Adapter
613 (min: 570, max: 664) MBit/s ∼91% -9%
Acer Spin 5 SP515-51GN-80A3
Qualcomm Atheros QCA61x4
604 MBit/s ∼90% -10%
Dell Inspiron 14 5000 5482 2-in-1
Intel Wireless-AC 9560
597 MBit/s ∼89% -11%
Asus VivoBook Flip 14 TP412UA-DB51T
Intel Dual Band Wireless-AC 8265
506 MBit/s ∼75% -25%
Average of class Convertible
  (36.4 - 685, n=136)
496 MBit/s ∼74% -26%
278.7
cd/m²
273
cd/m²
280.1
cd/m²
263.4
cd/m²
284.2
cd/m²
269
cd/m²
251.8
cd/m²
275.9
cd/m²
263.3
cd/m²
Homogénéité de la luminosité
X-Rite i1Pro 2
Maximum: 284.2 cd/m² Moyenne: 271 cd/m² Minimum: 0.12 cd/m²
Homogénéité de la luminosité: 89 %
Valeur mesurée au centre, sur batterie: 284.2 cd/m²
Contraste: 580:1 (Valeurs des noirs: 0.49 cd/m²)
ΔE Color 4.59 | 0.6-29.43 Ø6.1, calibrated: 4.57
ΔE Greyscale 3.9 | 0.64-98 Ø6.3
59% sRGB (Argyll 3D) 38% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.123
Lenovo Flex 14IWL
BOE BOE06F2, IPS, 14, 1920x1080
HP Envy x360 13-ar0601ng
InfoVision, M133NVF3 R2, IPS, 120 Hz, 13.3, 1920x1080
Dell Inspiron 14 5000 5482 2-in-1
NV14N4H, IPS, 14, 1920x1080
Asus VivoBook Flip 14 TP412UA-DB51T
AUO B140HAN04.0, IPS, 14, 1920x1080
Acer Spin 5 SP515-51GN-80A3
AUO, B156HAN06.1, a-Si TFT-LCD, LCM, IPS, 15.6, 1920x1080
Response Times
358%
-46%
-10%
-13%
Response Time Grey 50% / Grey 80% *
30.4 (22, 18.4)
35 (18, 17)
-15%
58.8 (25.6, 33.2)
-93%
38 (19.6, 18.4)
-25%
42 (22, 20)
-38%
Response Time Black / White *
32.8 (21.2, 11.6)
22 (12, 10)
33%
33.2 (20, 13.2)
-1%
30.8 (17.2, 13.6)
6%
29 (15, 13)
12%
PWM Frequency
352.1 (99)
4065 (90)
1055%
198.4 (98)
-44%
Screen
55%
-5%
12%
34%
Brightness middle
284.2
633
123%
193.6
-32%
255.5
-10%
221
-22%
Brightness
271
675
149%
181
-33%
242
-11%
224
-17%
Brightness Distribution
89
75
-16%
78
-12%
87
-2%
89
0%
Black Level *
0.49
0.55
-12%
0.17
65%
0.29
41%
0.12
76%
Contrast
580
1151
98%
1139
96%
881
52%
1842
218%
Colorchecker DeltaE2000 *
4.59
3.12
32%
6.99
-52%
4.18
9%
4.12
10%
Colorchecker DeltaE2000 max. *
18.03
6.37
65%
23.58
-31%
19.15
-6%
6.41
64%
Colorchecker DeltaE2000 calibrated *
4.57
1.83
60%
4.86
-6%
3.8
17%
Greyscale DeltaE2000 *
3.9
3.89
-0%
5.7
-46%
2.2
44%
3.4
13%
Gamma
2.123 104%
2.39 92%
2.12 104%
2.05 107%
2.54 87%
CCT
6679 97%
6476 100%
5845 111%
6599 98%
6893 94%
Color Space (Percent of AdobeRGB 1998)
38
59
55%
37.6
-1%
37.5
-1%
37
-3%
Color Space (Percent of sRGB)
59
91
54%
59.1
0%
58
-2%
Moyenne finale (programmes/paramètres)
207% / 120%
-26% / -15%
1% / 9%
11% / 26%

* ... Moindre est la valeur, meilleures sont les performances

Temps de réponse de l'écran

Le temps de réponse d'un écran mesure la rapidité à laquelle l'écran est capable de changer une couleur pour une autre. Un temps de réponse élevé se traduit par une image floutée pour les objets en mouvement. Les joueurs bénéficieront de faibles latences d'affichage en jeu.
       Temps de réponse noir à blanc
32.8 ms ... hausse ↗ et chute ↘ combinées↗ 21.2 ms hausse
↘ 11.6 ms chute
L'écran souffre de latences très élevées, à éviter pour le jeu.
En comparaison, tous les appareils testés affichent entre 0.8 (minimum) et 240 (maximum) ms. » 84 % des appareils testés affichent de meilleures performances.
Cela signifie que les latences relevées sont moins bonnes que la moyenne (25.2 ms) de tous les appareils testés.
       Temps de réponse gris 50% à gris 80%
30.4 ms ... hausse ↗ et chute ↘ combinées↗ 22 ms hausse
↘ 18.4 ms chute
L'écran souffre de latences très élevées, à éviter pour le jeu.
En comparaison, tous les appareils testés affichent entre 0.9 (minimum) et 636 (maximum) ms. » 18 % des appareils testés affichent de meilleures performances.
Cela signifie que les latences relevées sont meilleures que la moyenne (40.2 ms) de tous les appareils testés.

Scintillement / MLI (Modulation de largeur d'impulsion)

Afin d'abaisser la luminosité de l'écran, certains ordinateurs portables font varier très rapidement le rétroéclairage entre éteint et allumé. La fréquence à laquelle le rétroéclairage s'éteint et se rallume est normalement fixée à une valeur qui permet de rendre la variation indétectable à l'œil nu? Si la fréquence est trop basse, certaines personnes peuvent être sujettes à une fatigue oculaire, des maux de tête ou même percevoir les variations.
Scintillement / MLI (Modulation de largeur d'impulsion) décelé 352.1 Hz ≤ 99 Niveau de luminosité

Le rétroéclairage de l'écran scintille à la fréquence de 352.1 Hz (certainement du fait de l'utilisation d'une MDI - Modulation de largeur d'impulsion) à un niveau de luminosité inférieur ou égal à 99 % . Aucun scintillement ne devrait être perceptible au-dessus de cette valeur.

La fréquence de rafraîchissement de 352.1 Hz est relativement élevée, la grande majorité des utilisateurs ne devrait pas percevLa fréquence de rafraîchissement de 352.1 Hz est relativement élevée, la grande majorité des utilisateurs ne devrait pas percevoir de scintillements et être sujette à une fatigue oculaire accrue.oir de scintillements et être sujette à une fatigue oculaire accrue. Néanmoins certaines personnes pourront toujours percevoir un scintillement.

En comparaison, 51 % des appareils testés n'emploient pas MDI pour assombrir leur écran. Nous avons relevé une moyenne à 9447 (minimum : 43 - maximum : 142900) Hz dans le cas où une MDI était active.

Lenovo Flex 14 - CPU-Z : CPU.
Lenovo Flex 14 - CPU-Z : CPU.
Lenovo Flex 14 - CPU-Z : Caches.
Lenovo Flex 14 - CPU-Z : Caches.
Lenovo Flex 14 - CPU-Z : carte-mère.
Lenovo Flex 14 - CPU-Z : carte-mère.
Lenovo Flex 14 - CPU-Z : mémoire vive.
Lenovo Flex 14 - CPU-Z : mémoire vive.
Lenovo Flex 14 - CPU-Z : SPD.
Lenovo Flex 14 - CPU-Z : SPD.
Lenovo Flex 14 - GPU-Z.
Lenovo Flex 14 - GPU-Z.
Lenovo Flex 14 - HWiNFO64.
Lenovo Flex 14 - HWiNFO64.
 
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Lenovo Flex 14IWL UHD Graphics 620, 8265U, Samsung SSD PM981 MZVLB256HAHQ; CPU Multi 64Bit: Ø481 (468.32-534.77)
HP Envy x360 13-ar0601ng Vega 10, 3700U, SK Hynix BC501 HFM512GDJTNG; CPU Multi 64Bit: Ø440 (425.31-674.59)
Dell Inspiron 14 5000 5482 2-in-1 UHD Graphics 620, 8565U, SK Hynix BC501 NVMe 256 GB; CPU Multi 64Bit: Ø557 (543.67-594.64)
Asus VivoBook Flip 14 TP412UA-DB51T UHD Graphics 620, 8250U, Micron 1100 MTFDDAV256TBN; CPU Multi 64Bit: Ø549 (543.42-590.28)
Acer Spin 5 SP515-51GN-80A3 GeForce GTX 1050 (Laptop), 8550U, Intel SSD 600p SSDPEKKW256G7; CPU Multi 64Bit: Ø518 (513.21-552.39)
Cinebench R15
CPU Single 64Bit
Dell Latitude 7400 2-in-1
Intel Core i7-8665U
176 Points ∼81% +11%
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U
170 Points ∼78% +7%
Lenovo IdeaPad S940-14IWL
Intel Core i7-8565U
159 Points ∼73% 0%
Lenovo Flex 14IWL
Intel Core i5-8265U
159 Points ∼73%
Average Intel Core i5-8265U
  (111 - 163, n=22)
154 Points ∼71% -3%
Asus VivoBook Flip 14 TP412UA-DB51T
Intel Core i5-8250U
144 Points ∼66% -9%
Lenovo ThinkPad E495-20NE000JGE
AMD Ryzen 5 3500U
140 Points ∼64% -12%
HP Envy x360 13-ar0601ng
AMD Ryzen 7 3700U
139 Points ∼64% -13%
Lenovo Ideapad 330S-15ARR-81FB00C7GE
AMD Ryzen 5 2500U
137 Points ∼63% -14%
Average of class Convertible
  (19 - 179, n=292)
104 Points ∼48% -35%
CPU Multi 64Bit
HP Envy x360 13-ar0601ng
AMD Ryzen 7 3700U
676 Points ∼15% +37%
Lenovo ThinkPad E495-20NE000JGE
AMD Ryzen 5 3500U
658 (min: 656.79, max: 659.13) Points ∼15% +33%
Lenovo Ideapad 330S-15ARR-81FB00C7GE
AMD Ryzen 5 2500U
618 Points ∼14% +25%
Average Intel Core i5-8265U
  (483 - 750, n=24)
603 Points ∼14% +22%
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U
558 Points ∼13% +13%
Dell Latitude 7400 2-in-1
Intel Core i7-8665U
524 Points ∼12% +6%
Asus VivoBook Flip 14 TP412UA-DB51T
Intel Core i5-8250U
521 Points ∼12% +6%
Lenovo IdeaPad S940-14IWL
Intel Core i7-8565U
497 Points ∼11% +1%
Lenovo Flex 14IWL
Intel Core i5-8265U
493 Points ∼11%
Average of class Convertible
  (33 - 761, n=299)
292 Points ∼7% -41%
Cinebench R11.5
CPU Single 64Bit
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U
1.94 Points ∼80%
Average Intel Core i5-8265U
  (1.73 - 1.88, n=5)
1.802 Points ∼74%
Dell Latitude 7400 2-in-1
Intel Core i7-8665U
1.67 Points ∼68%
HP Envy x360 13-ar0601ng
AMD Ryzen 7 3700U
1.23 Points ∼50%
Average of class Convertible
  (0.24 - 2.01, n=218)
1.12 Points ∼46%
CPU Multi 64Bit
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U
6.26 Points ∼23%
Average Intel Core i5-8265U
  (5.22 - 7.22, n=5)
6.03 Points ∼22%
HP Envy x360 13-ar0601ng
AMD Ryzen 7 3700U
5.02 Points ∼19%
Dell Latitude 7400 2-in-1
Intel Core i7-8665U
4.88 Points ∼18%
Average of class Convertible
  (0.45 - 8.56, n=227)
2.81 Points ∼10%
Cinebench R10
Rendering Single 32Bit
Dell Latitude 7400 2-in-1
Intel Core i7-8665U
6716 Points ∼62%
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U
6494 Points ∼60%
Average Intel Core i5-8265U
  (5841 - 6165, n=5)
6026 Points ∼56%
Lenovo Ideapad 330S-15ARR-81FB00C7GE
AMD Ryzen 5 2500U
4381 Points ∼40%
Average of class Convertible
  (466 - 7508, n=239)
3353 Points ∼31%
Rendering Multiple CPUs 32Bit
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U
18269 Points ∼37%
Average Intel Core i5-8265U
  (16318 - 20179, n=5)
17948 Points ∼36%
Dell Latitude 7400 2-in-1
Intel Core i7-8665U
16602 Points ∼33%
Lenovo Ideapad 330S-15ARR-81FB00C7GE
AMD Ryzen 5 2500U
16471 Points ∼33%
Average of class Convertible
  (706 - 24180, n=235)
7744 Points ∼16%
wPrime 2.0x - 1024m
Average of class Convertible
  (245 - 3227, n=111)
812 s * ∼10%
Dell Latitude 7400 2-in-1
Intel Core i7-8665U
429.319 s * ∼5%
Average Intel Core i5-8265U
  (371 - 433, n=2)
402 s * ∼5%
Super Pi Mod 1.5 XS 32M - ---
Average Intel Core i5-8265U
  (9.76 - 7439, n=14)
2388 Seconds * ∼11% -333%
Average of class Convertible
  (0.046 - 64540, n=1360)
1589 Seconds * ∼7% -188%
Lenovo Flex 14IWL
Intel Core i5-8265U
552.102 Seconds * ∼2%
Dell Latitude 7400 2-in-1
Intel Core i7-8665U
521 Seconds * ∼2% +6%

* ... Moindre est la valeur, meilleures sont les performances

Cinebench R15 CPU Single 64Bit
159 Points
Cinebench R15 CPU Multi 64Bit
493 Points
Cinebench R15 OpenGL 64Bit
46.89 fps
Cinebench R15 Ref. Match 64Bit
97.8 %
Aide
PCMark 10
Digital Content Creation
Acer Spin 5 SP515-51GN-80A3
GeForce GTX 1050 (Laptop), 8550U, Intel SSD 600p SSDPEKKW256G7
3773 Points ∼34% +30%
Dell Inspiron 14 5000 5482 2-in-1
UHD Graphics 620, 8565U, SK Hynix BC501 NVMe 256 GB
3108 Points ∼28% +7%
HP Envy x360 13-ar0601ng
Vega 10, 3700U, SK Hynix BC501 HFM512GDJTNG
3094 Points ∼28% +7%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (2620 - 3210, n=18)
2977 Points ∼27% +3%
Lenovo Flex 14IWL
UHD Graphics 620, 8265U, Samsung SSD PM981 MZVLB256HAHQ
2892 Points ∼26%
Asus VivoBook Flip 14 TP412UA-DB51T
UHD Graphics 620, 8250U, Micron 1100 MTFDDAV256TBN
2779 Points ∼25% -4%
Average of class Convertible
  (605 - 4342, n=89)
2453 Points ∼22% -15%
Productivity
Dell Inspiron 14 5000 5482 2-in-1
UHD Graphics 620, 8565U, SK Hynix BC501 NVMe 256 GB
7045 Points ∼73% +10%
Acer Spin 5 SP515-51GN-80A3
GeForce GTX 1050 (Laptop), 8550U, Intel SSD 600p SSDPEKKW256G7
6748 Points ∼70% +6%
Lenovo Flex 14IWL
UHD Graphics 620, 8265U, Samsung SSD PM981 MZVLB256HAHQ
6390 Points ∼66%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (5836 - 6556, n=18)
6220 Points ∼64% -3%
HP Envy x360 13-ar0601ng
Vega 10, 3700U, SK Hynix BC501 HFM512GDJTNG
5875 Points ∼61% -8%
Asus VivoBook Flip 14 TP412UA-DB51T
UHD Graphics 620, 8250U, Micron 1100 MTFDDAV256TBN
5722 Points ∼59% -10%
Average of class Convertible
  (1121 - 7077, n=91)
5199 Points ∼54% -19%
Essentials
Lenovo Flex 14IWL
UHD Graphics 620, 8265U, Samsung SSD PM981 MZVLB256HAHQ
8689 Points ∼81%
Dell Inspiron 14 5000 5482 2-in-1
UHD Graphics 620, 8565U, SK Hynix BC501 NVMe 256 GB
8354 Points ∼78% -4%
Acer Spin 5 SP515-51GN-80A3
GeForce GTX 1050 (Laptop), 8550U, Intel SSD 600p SSDPEKKW256G7
8248 Points ∼77% -5%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (7278 - 8689, n=18)
7903 Points ∼74% -9%
Asus VivoBook Flip 14 TP412UA-DB51T
UHD Graphics 620, 8250U, Micron 1100 MTFDDAV256TBN
7731 Points ∼72% -11%
HP Envy x360 13-ar0601ng
Vega 10, 3700U, SK Hynix BC501 HFM512GDJTNG
7472 Points ∼70% -14%
Average of class Convertible
  (2489 - 9291, n=91)
6869 Points ∼64% -21%
Score
Acer Spin 5 SP515-51GN-80A3
GeForce GTX 1050 (Laptop), 8550U, Intel SSD 600p SSDPEKKW256G7
4194 Points ∼54% +8%
Dell Inspiron 14 5000 5482 2-in-1
UHD Graphics 620, 8565U, SK Hynix BC501 NVMe 256 GB
4069 Points ∼52% +4%
Lenovo Flex 14IWL
UHD Graphics 620, 8265U, Samsung SSD PM981 MZVLB256HAHQ
3896 Points ∼50%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (3573 - 3985, n=18)
3775 Points ∼49% -3%
HP Envy x360 13-ar0601ng
Vega 10, 3700U, SK Hynix BC501 HFM512GDJTNG
3685 Points ∼47% -5%
Asus VivoBook Flip 14 TP412UA-DB51T
UHD Graphics 620, 8250U, Micron 1100 MTFDDAV256TBN
3564 Points ∼46% -9%
Average of class Convertible
  (872 - 4347, n=92)
3132 Points ∼40% -20%
PCMark 8
Work Score Accelerated v2
Acer Spin 5 SP515-51GN-80A3
GeForce GTX 1050 (Laptop), 8550U, Intel SSD 600p SSDPEKKW256G7
5281 Points ∼81% +9%
Dell Inspiron 14 5000 5482 2-in-1
UHD Graphics 620, 8565U, SK Hynix BC501 NVMe 256 GB
5032 Points ∼77% +4%
HP Envy x360 13-ar0601ng
Vega 10, 3700U, SK Hynix BC501 HFM512GDJTNG
4869 Points ∼75% 0%
Lenovo Flex 14IWL
UHD Graphics 620, 8265U, Samsung SSD PM981 MZVLB256HAHQ
4852 Points ∼74%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (4302 - 4927, n=16)
4743 Points ∼73% -2%
Average of class Convertible
  (1007 - 5281, n=221)
3707 Points ∼57% -24%
Home Score Accelerated v2
Acer Spin 5 SP515-51GN-80A3
GeForce GTX 1050 (Laptop), 8550U, Intel SSD 600p SSDPEKKW256G7
4100 Points ∼67% +19%
HP Envy x360 13-ar0601ng
Vega 10, 3700U, SK Hynix BC501 HFM512GDJTNG
3863 Points ∼63% +12%
Dell Inspiron 14 5000 5482 2-in-1
UHD Graphics 620, 8565U, SK Hynix BC501 NVMe 256 GB
3537 Points ∼58% +3%
Average Intel Core i5-8265U, Intel UHD Graphics 620
  (3150 - 4244, n=17)
3517 Points ∼58% +2%
Lenovo Flex 14IWL
UHD Graphics 620, 8265U, Samsung SSD PM981 MZVLB256HAHQ
3438 Points ∼56%
Asus VivoBook Flip 14 TP412UA-DB51T
UHD Graphics 620, 8250U, Micron 1100 MTFDDAV256TBN
2986 Points ∼49% -13%
Average of class Convertible
  (741 - 4741, n=268)
2776 Points ∼46% -19%
PCMark 8 Home Score Accelerated v2
3438 points
PCMark 8 Work Score Accelerated v2
4852 points
Aide
Lenovo Flex 14IWL
Samsung SSD PM981 MZVLB256HAHQ
HP Envy x360 13-ar0601ng
SK Hynix BC501 HFM512GDJTNG
Dell Inspiron 14 5000 5482 2-in-1
SK Hynix BC501 NVMe 256 GB
Asus VivoBook Flip 14 TP412UA-DB51T
Micron 1100 MTFDDAV256TBN
Acer Spin 5 SP515-51GN-80A3
Intel SSD 600p SSDPEKKW256G7
AS SSD
-36%
-36%
-67%
-45%
Copy Game MB/s
392.87
535.7
354.05
420.49
Copy Program MB/s
253.09
344.44
364.29
228.52
Copy ISO MB/s
521.16
773.11
414.39
606.96
Score Total
3106
1913
-38%
1520
-51%
839
-73%
1157
-63%
Score Write
1521
829
-45%
576
-62%
379
-75%
507
-67%
Score Read
1076
741
-31%
619
-42%
301
-72%
450
-58%
Access Time Write *
0.034
0.048
-41%
0.032
6%
0.056
-65%
0.03
12%
Access Time Read *
0.053
0.049
8%
0.046
13%
0.079
-49%
0.079
-49%
4K-64 Write
1267.67
700.37
-45%
416.46
-67%
279.43
-78%
331.87
-74%
4K-64 Read
770.94
567.3
-26%
522.31
-32%
234.31
-70%
278.14
-64%
4K Write
109.36
74.74
-32%
112.4
3%
64.7
-41%
117.56
7%
4K Read
51.72
32.24
-38%
39.48
-24%
23.31
-55%
31.89
-38%
Seq Write
1437.72
540.38
-62%
471.64
-67%
350.31
-76%
577.13
-60%
Seq Read
2533.34
1412.01
-44%
576.2
-77%
437.85
-83%
1401.62
-45%
CrystalDiskMark 5.2 / 6
-34%
-22%
-58%
-32%
Write 4K
136.5
88.26
-35%
111.8
-18%
66.49
-51%
132.3
-3%
Read 4K
45.74
34.84
-24%
42.6
-7%
24.65
-46%
35.38
-23%
Write Seq
740.1
715.9
413.2
592
Read Seq
984.8
1107
465.2
1186
Write 4K Q32T1
380.5
313.7
-18%
451.5
19%
227
-40%
323
-15%
Read 4K Q32T1
437.5
243.1
-44%
316.8
-28%
188.4
-57%
289.2
-34%
Write Seq Q32T1
1502.2
845.7
-44%
809.1
-46%
439.9
-71%
592.5
-61%
Read Seq Q32T1
3357.1
1782.7
-47%
1610
-52%
533.3
-84%
1569
-53%
Write 4K Q8T8
1435.3
305.7
-79%
Read 4K Q8T8
571.6
697.5
22%
Moyenne finale (programmes/paramètres)
-35% / -35%
-29% / -31%
-63% / -64%
-39% / -40%

* ... Moindre est la valeur, meilleures sont les performances

Samsung SSD PM981 MZVLB256HAHQ
CDM 5/6 Read Seq Q32T1: 3357.1 MB/s
CDM 5/6 Write Seq Q32T1: 1502.2 MB/s
CDM 5/6 Read 4K Q32T1: 437.5 MB/s
CDM 5/6 Write 4K Q32T1: 380.5 MB/s
CDM 5/6 Read 4K: 45.74 MB/s
CDM 5/6 Write 4K: 136.5 MB/s
CDM 6 Write 4K Q8T8: 1435.3 MB/s
CDM 6 Read 4K Q8T8: 571.6 MB/s
3DMark 11
1280x720 Performance Combined
Acer Spin 5 SP515-51GN-80A3
NVIDIA GeForce GTX 1050 (Laptop), 8550U
6480 Points ∼29% +378%
Lenovo IdeaPad S540-14IWL
NVIDIA GeForce MX250, 8265U
4340 Points ∼19% +220%
Lenovo Ideapad S340-14IWL-81N70056GE
NVIDIA GeForce MX230, 8565U
3816 Points ∼17% +181%
Lenovo Ideapad 330S-15ARR-81FB00C7GE
AMD Radeon RX Vega 8, 2500U
2807 Points ∼12% +107%
Dell Inspiron 15 3585 (2300U, Vega 6)
AMD Radeon RX Vega 6, 2300U
2419 Points ∼11% +78%
HP Envy x360 13-ar0601ng
AMD Radeon RX Vega 10, 3700U
1865 Points ∼8% +37%
Average Intel UHD Graphics 620
  (959 - 1968, n=154)
1527 Points ∼7% +13%
Lenovo Flex 14IWL
Intel UHD Graphics 620, 8265U
1357 Points ∼6%
Average of class Convertible
  (204 - 7304, n=319)
1125 Points ∼5% -17%
1280x720 Performance GPU
Acer Spin 5 SP515-51GN-80A3
NVIDIA GeForce GTX 1050 (Laptop), 8550U
7043 Points ∼14% +319%
Lenovo IdeaPad S540-14IWL
NVIDIA GeForce MX250, 8265U
4942 Points ∼10% +194%
HP Envy x360 13-ar0601ng
AMD Radeon RX Vega 10, 3700U
4056 Points ∼8% +141%
Lenovo Ideapad 330S-15ARR-81FB00C7GE
AMD Radeon RX Vega 8, 2500U
3706 Points ∼7% +120%
Lenovo Ideapad S340-14IWL-81N70056GE
NVIDIA GeForce MX230, 8565U
3582 Points ∼7% +113%
Dell Inspiron 15 3585 (2300U, Vega 6)
AMD Radeon RX Vega 6, 2300U
2986 Points ∼6% +78%
Average Intel UHD Graphics 620
  (1235 - 1979, n=154)
1706 Points ∼3% +1%
Lenovo Flex 14IWL
Intel UHD Graphics 620, 8265U
1682 Points ∼3%
Average of class Convertible
  (173 - 7483, n=320)
1231 Points ∼2% -27%
3DMark
1920x1080 Fire Strike Graphics
Acer Spin 5 SP515-51GN-80A3
NVIDIA GeForce GTX 1050 (Laptop), 8550U
5688 Points ∼14% +430%
Lenovo IdeaPad S540-14IWL
NVIDIA GeForce MX250, 8265U
3720 Points ∼9% +246%
Lenovo Ideapad S340-14IWL-81N70056GE
NVIDIA GeForce MX230, 8565U
2729 Points ∼7% +154%
Lenovo Ideapad 330S-15ARR-81FB00C7GE
AMD Radeon RX Vega 8, 2500U
2476 Points ∼6% +131%
Dell Inspiron 15 3585 (2300U, Vega 6)
AMD Radeon RX Vega 6, 2300U
2064 Points ∼5% +92%
HP Envy x360 13-ar0601ng
AMD Radeon RX Vega 10, 3700U
1950 Points ∼5% +82%
Average Intel UHD Graphics 620
  (557 - 1401, n=123)
1117 Points ∼3% +4%
Lenovo Flex 14IWL
Intel UHD Graphics 620, 8265U
1074 Points ∼3%
Average of class Convertible
  (132 - 5965, n=229)
991 Points ∼2% -8%
1280x720 Cloud Gate Standard Graphics
Acer Spin 5 SP515-51GN-80A3
NVIDIA GeForce GTX 1050 (Laptop), 8550U
35068 Points ∼19% +327%
Lenovo IdeaPad S540-14IWL
NVIDIA GeForce MX250, 8265U
23643 Points ∼13% +188%
Lenovo Ideapad S340-14IWL-81N70056GE
NVIDIA GeForce MX230, 8565U
17999 Points ∼10% +119%
Lenovo Ideapad 330S-15ARR-81FB00C7GE
AMD Radeon RX Vega 8, 2500U
17712 Points ∼10% +116%
Dell Inspiron 15 3585 (2300U, Vega 6)
AMD Radeon RX Vega 6, 2300U
15850 Points ∼9% +93%
HP Envy x360 13-ar0601ng
AMD Radeon RX Vega 10, 3700U
14056 Points ∼8% +71%
Average Intel UHD Graphics 620
  (6910 - 11436, n=141)
9107 Points ∼5% +11%
Lenovo Flex 14IWL
Intel UHD Graphics 620, 8265U
8216 Points ∼4%
Average of class Convertible
  (1023 - 37388, n=281)
6618 Points ∼4% -19%
3DMark 11 Performance
1832 points
3DMark Cloud Gate Standard Score
7359 points
3DMark Fire Strike Score
991 points
Aide
Bas Moyen Élevé Ultra
BioShock Infinite (2013) 4027197fps
Farming Simulator 17 (2016) 52412313fps
Rocket League (2017) 423023fps

Degré de la nuisance sonore

Au repos
28.4 / 28.4 / 29.1 dB(A)
Fortement sollicité
33.8 / 37.7 dB(A)
  red to green bar
 
 
30 dB
silencieux
40 dB(A)
audible
50 dB(A)
bruyant
 
min: dark, med: mid, max: light   BK Precision 732A (à 15 cm de distance)   environment noise: 28.4 dB(A)
 29.8 °C37.6 °C28 °C 
 29 °C35.4 °C25.8 °C 
 25.6 °C23.4 °C23.8 °C 
Maximum: 37.6 °C
Moyenne: 28.7 °C
27.4 °C45.8 °C28 °C
25.4 °C44 °C29 °C
23.6 °C24.6 °C26.8 °C
Maximum: 45.8 °C
Moyenne: 30.5 °C
Alimentation (valeur maximale)  32 °C | Température ambiante de la pièce 20.6 °C | Fluke 62 Mini
(+) The average temperature for the upper side under maximal load is 28.7 °C / 84 F, compared to the average of 30.3 °C / 87 F for the devices in the class Convertible.
(+) The maximum temperature on the upper side is 37.6 °C / 100 F, compared to the average of 35.3 °C / 96 F, ranging from 21.8 to 55.7 °C for the class Convertible.
(-) The bottom heats up to a maximum of 45.8 °C / 114 F, compared to the average of 36.5 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 26.5 °C / 80 F, compared to the device average of 30.3 °C / 87 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 25.6 °C / 78.1 F and are therefore cool to the touch.
(+) The average temperature of the palmrest area of similar devices was 29 °C / 84.2 F (+3.4 °C / 6.1 F).
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs204444.32538.138.43138.239.94038.637.95035.836.36336.438.38036.34010033.743.512533.845.816032.652.820032.955.225031.160.231530.665.14003068.550029.669.963028.87080028.372.5100027.772.6125027.470.7160027.471.1200027.272.1250026.865.6315026.963.440002765500026.765.4630026.767.8800026.662.61000026.563.71250026.464.71600026.359.6SPL39.781N3.752.1median 27.4median 65.1Delta2.14.538.340.732.435.833.133.933.332.931.13130.533.630.231.128.732.127.4392749.126.55426.359.826.163.725.565.524.665.224.366.224.173.324.274.623.870.123.567.823.272.223.266.623.36623.26823.271.923.275.123.176.323.17722.972.822.974.835.7842.560.5median 23.8median 67.80.97.2hearing rangehide median Pink NoiseLenovo Flex 14IWLAsus VivoBook Flip 14 TP412UA-DB51T
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Lenovo Flex 14IWL audio analysis

(±) | speaker loudness is average but good (72.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.3% lower than median
(±) | linearity of bass is average (11.1% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.8% higher than median
(+) | mids are linear (3.6% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 1.3% away from median
(±) | linearity of highs is average (7.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (15% difference to median)
Compared to same class
» 10% of all tested devices in this class were better, 6% similar, 84% worse
» The best had a delta of 11%, average was 22%, worst was 53%
Compared to all devices tested
» 15% of all tested devices were better, 4% similar, 81% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Asus VivoBook Flip 14 TP412UA-DB51T audio analysis

(±) | speaker loudness is average but good (77.01 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 18.2% lower than median
(±) | linearity of bass is average (12.3% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.2% away from median
(+) | mids are linear (6.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 4.6% away from median
(+) | highs are linear (5.6% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (17.7% difference to median)
Compared to same class
» 27% of all tested devices in this class were better, 7% similar, 65% worse
» The best had a delta of 11%, average was 22%, worst was 53%
Compared to all devices tested
» 28% of all tested devices were better, 7% similar, 65% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Consommation énergétique
Éteint/en veilledarklight 5.3 / 4.8 Watts
Au reposdarkmidlight 9.4 / 13.3 / 13.9 Watts
Fortement sollicité midlight 39.7 / 46.5 Watts
 color bar
Légende: min: dark, med: mid, max: light        Metrahit Energy
Lenovo Flex 14IWL
8265U, UHD Graphics 620, Samsung SSD PM981 MZVLB256HAHQ, IPS, 1920x1080, 14
HP Envy x360 13-ar0601ng
3700U, Vega 10, SK Hynix BC501 HFM512GDJTNG, IPS, 120 Hz, 1920x1080, 13.3
Dell Inspiron 14 5000 5482 2-in-1
8565U, UHD Graphics 620, SK Hynix BC501 NVMe 256 GB, IPS, 1920x1080, 14
Asus VivoBook Flip 14 TP412UA-DB51T
8250U, UHD Graphics 620, Micron 1100 MTFDDAV256TBN, IPS, 1920x1080, 14
Acer Spin 5 SP515-51GN-80A3
8550U, GeForce GTX 1050 (Laptop), Intel SSD 600p SSDPEKKW256G7, a-Si TFT-LCD, LCM, IPS, 1920x1080, 15.6
Power Consumption
37%
32%
45%
-2%
Idle Minimum *
9.4
3.2
66%
3.4
64%
3.3
65%
3.9
59%
Idle Average *
13.3
2.8
79%
6.4
52%
5.2
61%
6.7
50%
Idle Maximum *
13.9
12.4
11%
7.8
44%
5.6
60%
8.7
37%
Load Average *
39.7
24.2
39%
36.7
8%
32.9
17%
74
-86%
Load Maximum *
46.5
50
-8%
49.3
-6%
35.2
24%
79
-70%

* ... Moindre est la valeur, meilleures sont les performances

Autonomie
Au repos (module WiFi éteint, luminosité au minimum)
13h 33min
NBC WiFi Websurfing Battery Test 1.3
10h 23min
Fortement sollicité (luminosité au maximum)
1h 12min
Lenovo Flex 14IWL
8265U, UHD Graphics 620, 45 Wh
HP Envy x360 13-ar0601ng
3700U, Vega 10, 53 Wh
Dell Inspiron 14 5000 5482 2-in-1
8565U, UHD Graphics 620, 42 Wh
Asus VivoBook Flip 14 TP412UA-DB51T
8250U, UHD Graphics 620, 42 Wh
Acer Spin 5 SP515-51GN-80A3
8550U, GeForce GTX 1050 (Laptop), 48 Wh
Autonomie de la batterie
10%
-6%
-7%
-8%
Reader / Idle
813
632
-22%
742
-9%
759
-7%
WiFi v1.3
623
437
-30%
429
-31%
578
-7%
373
-40%
Load
72
130
81%
87
21%
88
22%

Points positifs

+ robuste
+ sélection de ports
+ tactile
+ niveau sonore en cas de sollicitations

Points négatifs

- mise en veille du processeur
- luminosité de l'écran
- clavier

Verdict

En test : le Lenovo Flex 14. Modèle de test fourni par Lenovo.
En test : le Lenovo Flex 14. Modèle de test fourni par Lenovo.

Le Lenovo Flex 14 est un appareil aux résultats mitigés. Ses plus gros points forts sont son autonomie et la vitesse de son stockage – il est difficile de trouver un portable avec un disque NVMe à 800 $, et le fait que le Flex 14 tienne une journée sans recharge est la cerise sur le gâteau. Cependant, le Flex 14 fait des compromis avec le clavier, son châssis en plastique, et son écran médiocre.

Le Flex 14 est peut-être plus adapté aux étudiants qui recherchent un convertible bon marché, et qui ne se soucient pas du clavier, de la qualité de construction, et de la luminosité. Il y a des concurrents moins chers (par exemple l’Asus VivoBook Flip 14). Un peu plus chers, et l’on a les meilleurs Yoga 730 et ThinkPad X390 Yoga, meilleurs que le Flex 14 dans tous les domaines. Le HP Envy x360 13 est également une bonne option ; pour 100-200 $ de plus, il fournit un écran plus lumineux, un meilleur clavier, et de meilleures performances graphiques, mais il faudra sacrifier quelques heures d’autonomie.

C’est difficile de classer le Flex 14. Alors qu’il n’y a pas un domaine où il chute, il n’excelle nulle part non plus. C’est une machine équilibrée, bonne en tout, excellente en rien.

L’intégralité de cette critique est disponible en anglais en suivant ce lien.

Lenovo Flex 14IWL - 07/10/2019 v6
Sam Medley

Châssis
82 / 98 → 83%
Clavier
71%
Dispositif de pointage
92%
Connectivité
50 / 80 → 63%
Poids
67 / 35-78 → 75%
Autonomie
93%
Écran
78%
Performances en jeu
56 / 68 → 83%
Performances dans les applications
89 / 87 → 100%
Chauffe
92%
Nuisance sonore
96%
Audio
70 / 91 → 77%
Appareil photo
41 / 85 → 48%
Moyenne
75%
83%
Convertible - Moyenne compensée

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> Revues et rapports de ordinateurs portatifs et smartphones, ordiphones > Critiques > Courte critique du Lenovo Flex 14 (2019) (i5-8265U, UHD 620, FHD) : un portable moyen à bon prix
Sam Medley, 2019-07-12 (Update: 2019-07-12)