Courte critique du convertible Lenovo Flex 5 15 (i7-8550U, GeForce MX130)
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| SDCardreader Transfer Speed | |
| average JPG Copy Test (av. of 3 runs) | |
| Dell XPS 15 9575 i7-8705G (Toshiba Exceria Pro M501 UHS-II) | |
| Lenovo Flex 5-1570 81CA000RUS (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| HP Pavilion 15-cs0053cl (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Lenovo Ideapad 530S-15IKB (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| maximum AS SSD Seq Read Test (1GB) | |
| Dell XPS 15 9575 i7-8705G (Toshiba Exceria Pro M501 UHS-II) | |
| Lenovo Flex 5-1570 81CA000RUS (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| HP Pavilion 15-cs0053cl (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Lenovo Ideapad 530S-15IKB (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Networking | |
| iperf3 Client (receive) TCP 1 m 4M x10 | |
| Huawei MateBook D 53010BAJ | |
| Dell XPS 15 9575 i7-8705G | |
| Lenovo Flex 5-1570 81CA000RUS | |
| HP Pavilion 15-cs0053cl | |
| iperf3 Client (transmit) TCP 1 m 4M x10 | |
| Dell XPS 15 9575 i7-8705G | |
| Huawei MateBook D 53010BAJ | |
| Lenovo Flex 5-1570 81CA000RUS | |
| HP Pavilion 15-cs0053cl | |
| |||||||||||||||||||||||||
Homogénéité de la luminosité: 82 %
Valeur mesurée au centre, sur batterie: 196.3 cd/m²
Contraste: 755:1 (Valeurs des noirs: 0.26 cd/m²)
ΔE Color 6.97 | 0.6-29.43 Ø5.8, calibrated: 4.85
ΔE Greyscale 6.1 | 0.64-98 Ø6
57.7% sRGB (Argyll 3D) 37.4% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.2
| Lenovo Flex 5-1570 81CA000RUS NV156FHM-N48, IPS, 15.6, 1920x1080 | Dell XPS 15 9575 i7-8705G Sharp SHP148D, IPS, 15.6, 3840x2160 | Lenovo Ideapad 530S-15IKB N156HCA-EAB, IPS, 15.6, 1920x1080 | Huawei MateBook D 53010BAJ AU Optronics B156HW02, IPS, 15.6, 1920x1080 | Asus ZenBook Flip 15 UX561UD B156ZAN03.1, IPS, 15.6, 3840x2160 | Acer Swift 3 SF315-41G-R6BR BOE CQ NV156FHM-N48, IPS, 15.6, 1920x1080 | |
|---|---|---|---|---|---|---|
| Response Times | -48% | 4% | 5% | -19% | -37% | |
| Response Time Grey 50% / Grey 80% * | 37.6 (19.2, 18.4) | 48.4 (23.2, 25.2) -29% | 37.2 (19.6, 17.6) 1% | 36.4 (18.4, 18) 3% | 52 (25, 27) -38% | 43 (23, 20) -14% |
| Response Time Black / White * | 29.2 (17.6, 11.6) | 34.8 (19.2, 15.6) -19% | 32.4 (18.4, 14) -11% | 27.2 (15.6, 11.6) 7% | 29 (15, 14) 1% | 30 (16, 14) -3% |
| PWM Frequency | 21190 (99) | 1000 (25) -95% | 25770 (67) 22% | 1471 (90) -93% | ||
| Screen | 72% | 23% | 16% | 63% | 29% | |
| Brightness middle | 196.3 | 488 149% | 285.1 45% | 265.7 35% | 380 94% | 284 45% |
| Brightness | 185 | 440 138% | 271 46% | 258 39% | 371 101% | 254 37% |
| Brightness Distribution | 82 | 81 -1% | 88 7% | 91 11% | 87 6% | 80 -2% |
| Black Level * | 0.26 | 0.3 -15% | 0.28 -8% | 0.31 -19% | 0.28 -8% | 0.29 -12% |
| Contrast | 755 | 1627 115% | 1018 35% | 857 14% | 1357 80% | 979 30% |
| Colorchecker DeltaE2000 * | 6.97 | 3.16 55% | 4.38 37% | 6.01 14% | 4.38 37% | 4.22 39% |
| Colorchecker DeltaE2000 max. * | 25.53 | 8.8 66% | 24.07 6% | 18.87 26% | 7.59 70% | 9.29 64% |
| Colorchecker DeltaE2000 calibrated * | 4.85 | 3.95 19% | 3.94 19% | |||
| Greyscale DeltaE2000 * | 6.1 | 3.3 46% | 3.1 49% | 5 18% | 3.6 41% | 1.17 81% |
| Gamma | 2.2 100% | 2.178 101% | 2.24 98% | 2.7 81% | 2.32 95% | 2.39 92% |
| CCT | 5800 112% | 6811 95% | 6705 97% | 6569 99% | 6860 95% | 6360 102% |
| Color Space (Percent of AdobeRGB 1998) | 37.4 | 71.7 92% | 40 7% | 42.24 13% | 88 135% | 38 2% |
| Color Space (Percent of sRGB) | 57.7 | 97.9 70% | 62 7% | 60.92 6% | 100 73% | 59 2% |
| Moyenne finale (programmes/paramètres) | 12% /
44% | 14% /
19% | 11% /
14% | 22% /
49% | -4% /
14% |
* ... Moindre est la valeur, meilleures sont les performances
Temps de réponse de l'écran
| ↔ Temps de réponse noir à blanc | ||
|---|---|---|
| 29.2 ms ... hausse ↗ et chute ↘ combinées | ↗ 17.6 ms hausse |  |
| ↘ 11.6 ms chute | ||
| L'écran souffre de latences relativement élevées, insuffisant pour le jeu. En comparaison, tous les appareils testés affichent entre 0.8 (minimum) et 240 (maximum) ms. » 70 % des appareils testés affichent de meilleures performances. Cela signifie que les latences relevées sont moins bonnes que la moyenne (24.4 ms) de tous les appareils testés. | ||
| ↔ Temps de réponse gris 50% à gris 80% | ||
| 37.6 ms ... hausse ↗ et chute ↘ combinées | ↗ 19.2 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 0.8 (minimum) et 636 (maximum) ms. » 37 % des appareils testés affichent de meilleures performances. Cela signifie que les latences relevées sont similaires à la moyenne (38.7 ms) de tous les appareils testés. | ||
Scintillement / MLI (Modulation de largeur d'impulsion)
| Scintillement / MLI (Modulation de largeur d'impulsion) décelé | 21190 Hz | ≤ 99 Niveau de luminosité |  |
Le rétroéclairage de l'écran scintille à la fréquence de 21190 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 21190 Hz est élevée, la grande majorité des utilisateurs ne devrait pas percevoir de scintillements et être sujette à une fatigue oculaire accrue. En comparaison, 51 % des appareils testés n'emploient pas MDI pour assombrir leur écran. Nous avons relevé une moyenne à 17553 (minimum : 5 - maximum : 2500000) Hz dans le cas où une MDI était active. | |||
| Cinebench R15 | |
| CPU Single 64Bit | |
| Lenovo ThinkPad P52 20MAS03N00 | |
| Average Intel Core i7-8550U (108 - 172, n=75) | |
| Lenovo Legion Y520-15IKBA-80WY001VGE | |
| Lenovo ThinkPad 13 20J1005TPB | |
| Lenovo Ideapad 530S-15IKB | |
| Lenovo Ideapad 720S-13ARR | |
| Lenovo Ideapad 720S-13ARR | |
| Lenovo Flex 5-1570 81CA000RUS | |
| Lenovo IdeaPad Miix 320-10ICR Pro LTE | |
| CPU Multi 64Bit | |
| Lenovo ThinkPad P52 20MAS03N00 | |
| Average Intel Core i7-8550U (301 - 761, n=77) | |
| Lenovo Ideapad 720S-13ARR | |
| Lenovo Ideapad 720S-13ARR | |
| Lenovo Flex 5-1570 81CA000RUS | |
| Lenovo Ideapad 530S-15IKB | |
| Lenovo Legion Y520-15IKBA-80WY001VGE | |
| Lenovo ThinkPad 13 20J1005TPB | |
| Lenovo IdeaPad Miix 320-10ICR Pro LTE | |
| Cinebench R11.5 | |
| CPU Single 64Bit | |
| Lenovo ThinkPad P52 20MAS03N00 | |
| Average Intel Core i7-8550U (1.43 - 1.95, n=32) | |
| CPU Multi 64Bit | |
| Lenovo ThinkPad P52 20MAS03N00 | |
| Average Intel Core i7-8550U (4.38 - 8.56, n=32) | |
| Cinebench R10 | |
| Rendering Multiple CPUs 32Bit | |
| Lenovo ThinkPad P52 20MAS03N00 | |
| Average Intel Core i7-8550U (11694 - 24180, n=31) | |
| Lenovo Ideapad 720S-13ARR | |
| Rendering Single 32Bit | |
| Lenovo ThinkPad P52 20MAS03N00 | |
| Average Intel Core i7-8550U (4202 - 8211, n=31) | |
| Lenovo Ideapad 720S-13ARR | |
| wPrime 2.10 - 1024m | |
| Lenovo ThinkPad 13 20J1005TPB | |
| Average Intel Core i7-8550U (258 - 435, n=11) | |
* ... Moindre est la valeur, meilleures sont les performances
| PCMark 8 | |
| Work Score Accelerated v2 | |
| Huawei MateBook D 53010BAJ | |
| Lenovo Ideapad 530S-15IKB | |
| Average Intel Core i7-8550U, NVIDIA GeForce MX130 (4327 - 5030, n=3) | |
| Lenovo Legion Y520-15IKBA-80WY001VGE | |
| HP Pavilion 15-cs0053cl | |
| Dell XPS 15 9575 i7-8705G | |
| Asus ZenBook Flip 15 UX561UD | |
| Average of class Multimedia (2213 - 5661, n=313) | |
| Lenovo Flex 5-1570 81CA000RUS | |
| Home Score Accelerated v2 | |
| Lenovo Legion Y520-15IKBA-80WY001VGE | |
| Dell XPS 15 9575 i7-8705G | |
| Huawei MateBook D 53010BAJ | |
| HP Pavilion 15-cs0053cl | |
| Asus ZenBook Flip 15 UX561UD | |
| Lenovo Ideapad 530S-15IKB | |
| Average Intel Core i7-8550U, NVIDIA GeForce MX130 (3381 - 3704, n=4) | |
| Average of class Multimedia (1371 - 4900, n=334) | |
| Lenovo Flex 5-1570 81CA000RUS | |
| PCMark 8 Home Score Accelerated v2 | 3381 points | |
| PCMark 8 Work Score Accelerated v2 | 4327 points | |
| PCMark 10 Score | 2837 points | |
Aide | ||
| Lenovo Flex 5-1570 81CA000RUS SK Hynix PC401 512GB M.2 (HFS512GD9TNG) | Dell XPS 15 9575 i7-8705G SK hynix PC401 NVMe 500 GB | Huawei MateBook D 53010BAJ Samsung SSD PM981 MZVLB512HAJQ | Asus ZenBook Flip 15 UX561UD Micron 1100 MTFDDAV256TBN | Lenovo Ideapad 530S-15IKB SK hynix PC401 HFS256GD9TNG | |
|---|---|---|---|---|---|
| AS SSD | 7% | 34% | -58% | -28% | |
| Copy Game MB/s | 683.66 | 944.26 38% | 1047.01 53% | 282.32 -59% | 301.11 -56% |
| Copy Program MB/s | 495.65 | 487.91 -2% | 438.11 -12% | 196.79 -60% | 233.52 -53% |
| Copy ISO MB/s | 1013.34 | 1522.88 50% | 1286.92 27% | 291.03 -71% | 868.11 -14% |
| Score Total | 2123 | 2132 0% | 4225 99% | 844 -60% | 1387 -35% |
| Score Write | 832 | 807 -3% | 1709 105% | 371 -55% | 415 -50% |
| Score Read | 860 | 921 7% | 1665 94% | 310 -64% | 690 -20% |
| Access Time Write * | 0.051 | 0.051 -0% | 0.143 -180% | 0.056 -10% | 0.051 -0% |
| Access Time Read * | 0.045 | 0.044 2% | 0.043 4% | 0.097 -116% | 0.06 -33% |
| 4K-64 Write | 611.98 | 637.4 4% | 1486.2 143% | 248.49 -59% | 271.59 -56% |
| 4K-64 Read | 659.92 | 649.44 -2% | 1455.07 120% | 235.49 -64% | 431.26 -35% |
| 4K Write | 99.47 | 94.25 -5% | 81.93 -18% | 84.85 -15% | 88.45 -11% |
| 4K Read | 40.59 | 41.38 2% | 52.95 30% | 25.79 -36% | 38.69 -5% |
| Seq Write | 1209.39 | 752.11 -38% | 1411.48 17% | 379.28 -69% | 549.75 -55% |
| Seq Read | 1595.69 | 2302.4 44% | 1567.26 -2% | 488.01 -69% | 2205.34 38% |
* ... Moindre est la valeur, meilleures sont les performances
| 3DMark 11 | |
| 1280x720 Performance Combined | |
| Lenovo Yoga 730-15IKB | |
| Lenovo ThinkPad T580-20LAS01H00 | |
| Lenovo ThinkPad 25 | |
| Lenovo Flex 5-1570 81CA000RUS | |
| Average NVIDIA GeForce MX130 (2169 - 3031, n=13) | |
| Lenovo IdeaPad 510S-14ISK | |
| Lenovo Ideapad 720S-13ARR | |
| Lenovo Ideapad 720S-13ARR | |
| 1280x720 Performance GPU | |
| Lenovo Yoga 730-15IKB | |
| Lenovo ThinkPad T580-20LAS01H00 | |
| Average NVIDIA GeForce MX130 (2476 - 3203, n=14) | |
| Lenovo ThinkPad 25 | |
| Lenovo Ideapad 720S-13ARR | |
| Lenovo Flex 5-1570 81CA000RUS | |
| Lenovo IdeaPad 510S-14ISK | |
| Lenovo Ideapad 720S-13ARR | |
| 3DMark | |
| 1920x1080 Fire Strike Graphics | |
| Lenovo Yoga 730-15IKB | |
| Lenovo ThinkPad T580-20LAS01H00 | |
| Average NVIDIA GeForce MX130 (2149 - 2495, n=13) | |
| Lenovo ThinkPad 25 | |
| Lenovo Flex 5-1570 81CA000RUS | |
| Lenovo Ideapad 720S-13ARR | |
| Lenovo Ideapad 720S-13ARR | |
| Lenovo IdeaPad 510S-14ISK | |
| 1280x720 Cloud Gate Standard Graphics | |
| Lenovo Yoga 730-15IKB | |
| Lenovo ThinkPad T580-20LAS01H00 | |
| Average NVIDIA GeForce MX130 (12166 - 14880, n=13) | |
| Lenovo ThinkPad 25 | |
| Lenovo Flex 5-1570 81CA000RUS | |
| Lenovo Ideapad 720S-13ARR | |
| Lenovo IdeaPad 510S-14ISK | |
| Lenovo Ideapad 720S-13ARR | |
| 3DMark 11 Performance | 28 points | |
| 3DMark Cloud Gate Standard Score | 8662 points | |
| 3DMark Fire Strike Score | 1991 points | |
Aide | ||
| Bas | Moyen | Élevé | Ultra | ||
| BioShock Infinite (2013) | 126.9 | 74.2 | 64.4 | 23.1 | fps |
| The Witcher 3 (2015) | 42.7 | 25 | 13.6 | 7.2 | fps |
| Rise of the Tomb Raider (2016) | 51.2 | 28.6 | 15.6 | 12.5 | fps |
Degré de la nuisance sonore
| Au repos |
| 29.6 / 29.6 / 29.6 dB(A) |
| Fortement sollicité |
| 39.2 / 41.6 dB(A) |
 | ||
30 dB silencieux 40 dB(A) audible 50 dB(A) bruyant |
||
min:  , med:  , max:  Audix TM1, Arta (à 15 cm de distance) environment noise: 28.2 dB(A) | ||
| Lenovo Flex 5-1570 81CA000RUS GeForce MX130, i5-8550U, SK Hynix PC401 512GB M.2 (HFS512GD9TNG) | Dell XPS 15 9575 i7-8705G Vega M GL / 870, i7-8705G, SK hynix PC401 NVMe 500 GB | Lenovo Ideapad 530S-15IKB UHD Graphics 620, i5-8250U, SK hynix PC401 HFS256GD9TNG | Asus ZenBook Flip 15 UX561UD GeForce GTX 1050 Mobile, i5-8550U, Micron 1100 MTFDDAV256TBN | HP Envy x360 15-bq102ng Vega 8, R5 2500U, Samsung PM961 MZVLW256HEHP | |
|---|---|---|---|---|---|
| Noise | 2% | 9% | -1% | -1% | |
| off / environment * | 28.2 | 28.2 -0% | 28 1% | 30.4 -8% | 30.13 -7% |
| Idle Minimum * | 29.6 | 28.2 5% | 28 5% | 31.3 -6% | 30.13 -2% |
| Idle Average * | 29.6 | 28.2 5% | 28 5% | 31.3 -6% | 30.13 -2% |
| Idle Maximum * | 29.6 | 28.2 5% | 30.1 -2% | 31.3 -6% | 30.13 -2% |
| Load Average * | 39.2 | 29 26% | 30.2 23% | 36.4 7% | 38.8 1% |
| Witcher 3 ultra * | 39.2 | 44.7 -14% | |||
| Load Maximum * | 41.6 | 47.4 -14% | 33.2 20% | 37.1 11% | 38.8 7% |
* ... Moindre est la valeur, meilleures sont les performances
(-) The maximum temperature on the upper side is 49 °C / 120 F, compared to the average of 36.6 °C / 98 F, ranging from 21.1 to 71 °C for the class Multimedia.
(-) The bottom heats up to a maximum of 55.2 °C / 131 F, compared to the average of 38.9 °C / 102 F
(+) In idle usage, the average temperature for the upper side is 24.6 °C / 76 F, compared to the device average of 31 °C / 88 F.
(±) Playing The Witcher 3, the average temperature for the upper side is 32.6 °C / 91 F, compared to the device average of 31 °C / 88 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 31.2 °C / 88.2 F and are therefore cool to the touch.
(-) The average temperature of the palmrest area of similar devices was 29 °C / 84.2 F (-2.2 °C / -4 F).
Lenovo Flex 5-1570 81CA000RUS audio analysis
(±) | speaker loudness is average but good (74.32 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 14.4% lower than median
(-) | bass is not linear (15.7% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.6% away from median
(±) | linearity of mids is average (14.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3% away from median
(±) | linearity of highs is average (11.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (19.1% difference to median)
Compared to same class
» 53% of all tested devices in this class were better, 10% similar, 37% worse
» The best had a delta of 3%, average was 18%, worst was 41%
Compared to all devices tested
» 38% of all tested devices were better, 7% similar, 55% worse
» The best had a delta of 3%, average was 21%, worst was 65%
Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis
(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.3% lower than median
(±) | linearity of bass is average (14.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.4% away from median
(+) | mids are linear (5.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (9.3% difference to median)
Compared to same class
» 2% of all tested devices in this class were better, 1% similar, 97% worse
» The best had a delta of 8%, average was 20%, worst was 50%
Compared to all devices tested
» 2% of all tested devices were better, 0% similar, 98% worse
» The best had a delta of 3%, average was 21%, worst was 65%
| Éteint/en veille | 0.28 / 0.6 Watts |
| Au repos | 4.1 / 7.6 / 7.9 Watts |
| Fortement sollicité |
42.5 / 54 Watts |
   
| |
Légende:
min: ,
med: ,
max: Metrahit Energy | |
| Lenovo Flex 5-1570 81CA000RUS i5-8550U, GeForce MX130, SK Hynix PC401 512GB M.2 (HFS512GD9TNG), IPS, 1920x1080, 15.6 | Dell XPS 15 9575 i7-8705G i7-8705G, Vega M GL / 870, SK hynix PC401 NVMe 500 GB, IPS, 3840x2160, 15.6 | Huawei MateBook D 53010BAJ i5-8250U, GeForce MX150, Samsung SSD PM981 MZVLB512HAJQ, IPS, 1920x1080, 15.6 | HP Pavilion 15-cs0053cl i5-8250U, UHD Graphics 620, Toshiba MQ04ABF100, TN LED, 1366x768, 15.6 | Lenovo Ideapad 530S-15IKB i5-8250U, UHD Graphics 620, SK hynix PC401 HFS256GD9TNG, IPS, 1920x1080, 15.6 | Asus ZenBook Flip 15 UX561UD i5-8550U, GeForce GTX 1050 Mobile, Micron 1100 MTFDDAV256TBN, IPS, 3840x2160, 15.6 | |
|---|---|---|---|---|---|---|
| Power Consumption | -79% | -20% | 7% | 15% | -77% | |
| Idle Minimum * | 4.1 | 6.2 -51% | 4.2 -2% | 5.6 -37% | 3.5 15% | 5.4 -32% |
| Idle Average * | 7.6 | 12.9 -70% | 7.2 5% | 7.1 7% | 5.6 26% | 10.8 -42% |
| Idle Maximum * | 7.9 | 13.6 -72% | 12.1 -53% | 7.9 -0% | 10.3 -30% | 13.9 -76% |
| Load Average * | 42.5 | 76.1 -79% | 51.1 -20% | 32.8 23% | 30.5 28% | 94 -121% |
| Witcher 3 ultra * | 38.6 | 84.3 -118% | 52.7 -37% | |||
| Load Maximum * | 54 | 99.4 -84% | 59.9 -11% | 30.5 44% | 33.8 37% | 116.6 -116% |
* ... Moindre est la valeur, meilleures sont les performances
| Lenovo Flex 5-1570 81CA000RUS i5-8550U, GeForce MX130, 52.5 Wh | Dell XPS 15 9575 i7-8705G i7-8705G, Vega M GL / 870, 75 Wh | Huawei MateBook D 53010BAJ i5-8250U, GeForce MX150, 43.3 Wh | HP Pavilion 15-cs0053cl i5-8250U, UHD Graphics 620, 41 Wh | Lenovo Ideapad 530S-15IKB i5-8250U, UHD Graphics 620, 45 Wh | Asus ZenBook Flip 15 UX561UD i5-8550U, GeForce GTX 1050 Mobile, 52 Wh | |
|---|---|---|---|---|---|---|
| Autonomie de la batterie | -37% | -24% | -21% | -13% | -44% | |
| Reader / Idle | 1132 | 673 -41% | 910 -20% | 722 -36% | 558 -51% | |
| WiFi v1.3 | 449 | 420 -6% | 462 3% | 419 -7% | 391 -13% | 311 -31% |
| Load | 170 | 63 -63% | 74 -56% | 134 -21% | 84 -51% |
Points positifs
Points négatifs
Le Flex 5 n’est ni pour les passionnés, ni pour les amateurs de performances. L’appareil à bas prix est plutôt pour les consommateurs de médias ou les étudiants qui ne souhaitent qu’un ordinateur Windows de 15 pouces pas trop cher, fait pour les films, du traitement de texte, et un peu de jeu. Il ne possède aucun avantage sur les Pavilion 2-en-1, Vivobook 2-en-1, Envy 2-en-1, ou le plus lourd Inspiron 15 2-en-1, si ce n’est la version avec la carte graphique un peu lente GeForce MX130. Le Flex 5 peut tout juste remplir un rôle de portable familial pour la maison.
La liste des coupes fâcheuses est longue. L’écran très sombre signifie que c’est un convertible pour l’intérieur, et le Turbo Boost très limité signifie que la version Core i7-8550U n’a pas beaucoup d’intérêt, alors que la version i5-8250U est tout aussi performante. Sa RAM monocanal bride encore plus les performances, et la solution de refroidissement est bien trop petite vu la place disponible dans ce 15 pouces - il y a beaucoup de place libre autour du ventilateur, qui aurait pu être utilisée pour intégrer un plus gros système de refroidissement, afin de réduire le bruit.
Le coût de départ de 700 $ est à peu près bien ajusté pour un appareil peu séduisant et que l’on oubliera vite, alors que les versions les plus haut-de-gammes dépassent les 1 000 $. Nous recommandons de ne pas choisir ces versions plus chères, qui ne valent pas le coup face à des portables classiques comme le XPS 15, ou face à des convertibles un peu plus chers comme le Spectre x360 15. Le Turbo Boost anémique et l’écran sombre le plombent vraiment.
L’intégralité de cette critique est disponible en anglais en suivant ce lien.
Lenovo Flex 5-1570 81CA000RUS - 09/03/2018 v6(old)
Allen Ngo
