Notebookcheck

Courte critique du convertible Samsung Galaxy Book 12 LTE

Sven Kloevekorn (traduit par JBP), 09/23/2017

Concurrent AMOLED de la Surface. Avec son Galaxy Book 12, Samsung est prêt à l'affrontement, et a réussi à trouver un argument de vente unique sur le marché des tablettes professionnelles Windows avec un étui clavier, en intégrant un écran AMOLED. Cet appareil coûteux conviendra aux hommes et femmes d’affaire qui recherchent une machine performante, avec de nombreux accessoires et seulement quelques faiblesses.

Samsung Galaxy Book 12 SM-W728 (Galaxy Book Gamme)
Processeur
Intel Core i5-7200U
Carte graphique
Intel HD Graphics 620, Processeur: 300 - 1000 MHz, mémoire partagée, 21.20.16.4599 WHQL
Mémoire
8192 Mo 
, DDR3L, 1600 MHz, double canal, non évolutive
Écran
12 pouces 3:2, 2160x1440 pixel 216 PPP, capacitif, 10 points, Prise en charge native d'une utilisation avec un stylet, Samsung SDCA029, Super AMOLED, brillant: oui, detachable screen
Carte mère
Intel Kaby Lake-U iHDCP 2.2 Premium PCH
Disque dur
Samsung SSD PM871a MZNLN256HMHQ, 256 Go 
Carte son
Intel Kaby Lake-U/Y PCH - High Definition Audio
Connexions
2 USB 3.0 / 3.1 Gen1, Connectique audio: audio in/out, 3,5 mm jack, Lecteur de cartes mémoires: micro SD (combiné avec la carte SIM), NFC, Brightness Sensor, Capteurs: accéléromètre, capteur à effet hall
Réseau
Atheros/Qualcomm QCA6174 (a/b/g/n/ac), Bluetooth 4.1, B1 (2100), B2 (1900), B5 (850), B8 (900), LTE, GPS
Taille
Hauteur x Largeur x Profondeur (en mm): 7.4 x 291.3 x 199.8
Batterie
39 Wh, 5070 mAh Lithium-Polymère
Système d'exploitation
Microsoft Windows 10 Pro 64 Bit
Appareil photo
Appareil photo primaire: 13 MPix CMOS / vidéo: UHD 4K (3840 x 2160 pixels) à 30 FPS
Appareil photo secondaire: 5 MPix CMOS / Vidéo : Full-HD à 30 FPS
Fonctionnalités additionnelles
Haut-parleurs: stéréo, Clavier: chiclet, Rétroéclairage du clavier: oui, S-Pen, 24 Mois Garantie
Poids
1.18 kg, Alimentation: 74 g
Prix
1200 euros

 

Size Comparison

A gauche : haut-parleurs , emplacement Nano-SIM / micro SD.
A gauche : haut-parleurs , emplacement Nano-SIM / micro SD.
Côté droit : audio jack 3,5 mm, 2 USB 3.1 Gen1 type C, haut-parleurs.
Côté droit : audio jack 3,5 mm, 2 USB 3.1 Gen1 type C, haut-parleurs.
Au-dessus : ventilation, microphones stéréo, volume, on/off.
Au-dessus : ventilation, microphones stéréo, volume, on/off.
Au-dessous : connecteur clavier propriétaire.
Au-dessous : connecteur clavier propriétaire.
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Samsung Galaxy Book 12 SM-W728
Atheros/Qualcomm QCA6174
606 MBit/s ∼100%
Microsoft Surface Pro (2017) i5
Marvell AVASTAR Wireless-AC Network Controller
577 MBit/s ∼95% -5%
Lenovo Ideapad Miix 720-12IKB
Tri-Band Wireless-AC 18260
513 MBit/s ∼85% -15%
Acer Switch 5 SW512-52-5819
Atheros/Qualcomm QCA6174
512 MBit/s ∼84% -16%
Dell Latitude 12 5285 2-in-1
Intel Dual Band Wireless-AC 8265
312 MBit/s ∼51% -49%
iperf3 Client (transmit) TCP 1 m 4M x10
Samsung Galaxy Book 12 SM-W728
Atheros/Qualcomm QCA6174
668 MBit/s ∼100%
Lenovo Ideapad Miix 720-12IKB
Tri-Band Wireless-AC 18260
662 MBit/s ∼99% -1%
Microsoft Surface Pro (2017) i5
Marvell AVASTAR Wireless-AC Network Controller
618 MBit/s ∼93% -7%
Dell Latitude 12 5285 2-in-1
Intel Dual Band Wireless-AC 8265
446 MBit/s ∼67% -33%
Acer Switch 5 SW512-52-5819
Atheros/Qualcomm QCA6174
151 MBit/s ∼23% -77%
368
cd/m²
366
cd/m²
375
cd/m²
360
cd/m²
376
cd/m²
376
cd/m²
393
cd/m²
396
cd/m²
392
cd/m²
Homogénéité de la luminosité
X-Rite i1Pro 2
Maximum: 396 cd/m² Moyenne: 378 cd/m² Minimum: 1.7 cd/m²
Homogénéité de la luminosité: 91 %
Valeur mesurée au centre, sur batterie: 376 cd/m²
Contraste: 12533:1 (Valeurs des noirs: 0.03 cd/m²)
ΔE Color 4.1 | - Ø
ΔE Greyscale 3.64 | - Ø
93% sRGB (Argyll) 74% AdobeRGB 1998 (Argyll)
Gamma: 2.58
Samsung Galaxy Book 12 SM-W728
Samsung SDCA029, , 2160x1440, 12
Microsoft Surface Pro (2017) i5
LG Display LP123WQ112604, , 2736x1824, 12.3
Dell Latitude 12 5285 2-in-1
BOE06DC, , 1920x1280, 12.3
Acer Switch 5 SW512-52-5819
WST KL.1200w.004, , 2160x1440, 12
Lenovo Ideapad Miix 720-12IKB
AUO B120YAN01 / AUO106F, , 2880x1920, 12
Response Times
2435%
-343%
-428%
-523%
Response Time Grey 50% / Grey 80% *
4 (2, 2)
42 (20, 22)
-950%
42.4 (20.4, 22)
-960%
37 (19, 18)
-825%
45 (22, 23)
-1025%
Response Time Black / White *
20 (18, 2)
29 (18, 11)
-45%
30.8 (18, 12.8)
-54%
26 (14, 12)
-30%
24 (14, 10)
-20%
PWM Frequency
250 (100)
21000
8300%
210.1
-16%
Screen
-114%
-177%
-214%
-140%
Brightness
378
401
6%
522
38%
331
-12%
396
5%
Brightness Distribution
91
88
-3%
88
-3%
75
-18%
88
-3%
Black Level *
0.03
0.29
-867%
0.42
-1300%
0.46
-1433%
0.3
-900%
Contrast
12533
1438
-89%
1246
-90%
802
-94%
1353
-89%
Colorchecker DeltaE2000 *
4.1
3.63
11%
4
2%
5.52
-35%
5.28
-29%
Greyscale DeltaE2000 *
3.64
2.18
40%
5.5
-51%
6.95
-91%
6.71
-84%
Gamma
2.58 93%
3.09 78%
2.16 111%
2.58 93%
2.29 105%
CCT
7113 91%
6767 96%
7546 86%
7009 93%
6532 100%
Color Space (Percent of AdobeRGB 1998)
74
63
-15%
64.86
-12%
56
-24%
59
-20%
Color Space (Percent of sRGB)
93
99
6%
93.97
1%
88
-5%
91
-2%
Moyenne finale (programmes/paramètres)
1161% / 581%
-260% / -222%
-321% / -257%
-332% / -217%

* ... 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
20 ms ... hausse ↗ et chute ↘ combinées↗ 18 ms hausse
↘ 2 ms chute
L'écran montre de bons temps de réponse, mais insuffisant pour du jeu compétitif.
En comparaison, tous les appareils testés affichent entre 0.8 (minimum) et 240 (maximum) ms. » 13 % des appareils testés affichent de meilleures performances.
Cela signifie que les latences relevées sont meilleures que la moyenne (26.7 ms) de tous les appareils testés.
       Temps de réponse gris 50% à gris 80%
4 ms ... hausse ↗ et chute ↘ combinées↗ 2 ms hausse
↘ 2 ms chute
L'écran montre de très faibles temps de réponse, parfait pour le jeu.
En comparaison, tous les appareils testés affichent entre 0.9 (minimum) et 636 (maximum) ms. » 1 % des appareils testés affichent de meilleures performances.
Cela signifie que les latences relevées sont meilleures que la moyenne (42.8 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 250 Hz100 Niveau de luminosité

Le rétroéclairage de l'écran scintille à la fréquence de 250 Hz (certainement du fait de l'utilisation d'une MDI - Modulation de largeur d'impulsion) à un niveau de luminosité inférieur ou égal à 100 % . Aucun scintillement ne devrait être perceptible au-dessus de cette valeur.

La fréquence de rafraîchissement de 250 Hz est relativement faible, les personnes les plus sensibles devraient percevoir un scintillement et être sujettes à une fatigue oculaire accrue (avec le niveau de luminosité indiqué)

En comparaison, 57 % des appareils testés n'emploient pas MDI pour assombrir leur écran. Nous avons relevé une moyenne à 6716 (minimum : 43 - maximum : 142900) Hz dans le cas où une MDI était active.

0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330Tooltip
Cinebench R15 CPU Multi 64 Bit
Cinebench R15
CPU Single 64Bit
Dell Latitude 12 5285 2-in-1
Intel Core i7-7600U
152 Points ∼100% +20%
Acer Switch 5 SW512-52-5819
Intel Core i7-7500U
143 Points ∼94% +13%
Microsoft Surface Pro (2017) i5
Intel Core i5-7300U
141 Points ∼93% +11%
Lenovo Ideapad Miix 720-12IKB
Intel Core i7-7500U
130 Points ∼86% +2%
Samsung Galaxy Book 12 SM-W728
Intel Core i5-7200U
127 Points ∼84%
CPU Multi 64Bit
Acer Switch 5 SW512-52-5819
Intel Core i7-7500U
339 Points ∼100% +6%
Microsoft Surface Pro (2017) i5
Intel Core i5-7300U
334 Points ∼99% +4%
Dell Latitude 12 5285 2-in-1
Intel Core i7-7600U
329 Points ∼97% +2%
Samsung Galaxy Book 12 SM-W728
Intel Core i5-7200U
321 Points ∼95%
Lenovo Ideapad Miix 720-12IKB
Intel Core i7-7500U
265 Points ∼78% -17%
Cinebench R15 CPU Multi 64Bit
321 Points
Cinebench R15 CPU Single 64Bit
127 Points
Aide
PCMark 8
Work Score Accelerated v2
Acer Switch 5 SW512-52-5819
HD Graphics 620, 7500U, Intel SSD 600p SSDPEKKW512G7
4585 Points ∼100% +7%
Samsung Galaxy Book 12 SM-W728
HD Graphics 620, 7200U, Samsung SSD PM871a MZNLN256HMHQ
4291 Points ∼94%
Lenovo Ideapad Miix 720-12IKB
HD Graphics 620, 7500U, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
4216 Points ∼92% -2%
Microsoft Surface Pro (2017) i5
HD Graphics 620, 7300U, Samsung PM971 KUS030202M
3983 Points ∼87% -7%
Dell Latitude 12 5285 2-in-1
HD Graphics 620, 7600U, Samsung PM961 MZVLW256HEHP
3510 Points ∼77% -18%
Home Score Accelerated v2
Dell Latitude 12 5285 2-in-1
HD Graphics 620, 7600U, Samsung PM961 MZVLW256HEHP
4741 Points ∼100% +34%
Acer Switch 5 SW512-52-5819
HD Graphics 620, 7500U, Intel SSD 600p SSDPEKKW512G7
3556 Points ∼75% +1%
Samsung Galaxy Book 12 SM-W728
HD Graphics 620, 7200U, Samsung SSD PM871a MZNLN256HMHQ
3538 Points ∼75%
Lenovo Ideapad Miix 720-12IKB
HD Graphics 620, 7500U, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
3186 Points ∼67% -10%
Microsoft Surface Pro (2017) i5
HD Graphics 620, 7300U, Samsung PM971 KUS030202M
2936 Points ∼62% -17%
PCMark 8 Home Score Accelerated v2
3538 points
PCMark 8 Work Score Accelerated v2
4291 points
Aide
Samsung Galaxy Book 12 SM-W728
Samsung SSD PM871a MZNLN256HMHQ
Microsoft Surface Pro (2017) i5
Samsung PM971 KUS030202M
Dell Latitude 12 5285 2-in-1
Samsung PM961 MZVLW256HEHP
Acer Switch 5 SW512-52-5819
Intel SSD 600p SSDPEKKW512G7
Lenovo Ideapad Miix 720-12IKB
Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
CrystalDiskMark 3.0
28%
47%
46%
162%
Write 4k QD32
260.7
373
43%
434.5
67%
425.4
63%
420.8
61%
Read 4k QD32
289.1
423
46%
493.3
71%
460.6
59%
504.1
74%
Write 4k
91.93
125
36%
72.22
-21%
128.3
40%
162.2
76%
Read 4k
40.46
46
14%
31.75
-22%
35.92
-11%
53.62
33%
Write 512
395.4
445
13%
589.3
49%
535.1
35%
1288
226%
Read 512
443.7
225
-49%
406
-8%
653.2
47%
1301
193%
Write Seq
473.7
853
80%
865.2
83%
592.6
25%
1702
259%
Read Seq
511.1
723
41%
1294
153%
1066
109%
2408
371%
Samsung SSD PM871a MZNLN256HMHQ
Sequential Read: 511.1 MB/s
Sequential Write: 473.7 MB/s
512K Read: 443.7 MB/s
512K Write: 395.4 MB/s
4K Read: 40.46 MB/s
4K Write: 91.93 MB/s
4K QD32 Read: 289.1 MB/s
4K QD32 Write: 260.7 MB/s
3DMark 11 - 1280x720 Performance GPU
Acer Switch 5 SW512-52-5819
Intel HD Graphics 620, Intel Core i7-7500U
1613 Points ∼100% +5%
Dell Latitude 12 5285 2-in-1
Intel HD Graphics 620, Intel Core i7-7600U
1589 Points ∼99% +4%
Samsung Galaxy Book 12 SM-W728
Intel HD Graphics 620, Intel Core i5-7200U
1533 Points ∼95%
Lenovo Ideapad Miix 720-12IKB
Intel HD Graphics 620, Intel Core i7-7500U
1416 Points ∼88% -8%
3DMark
1920x1080 Fire Strike Graphics
Dell Latitude 12 5285 2-in-1
Intel HD Graphics 620, Intel Core i7-7600U
1084 Points ∼100% +12%
Acer Switch 5 SW512-52-5819
Intel HD Graphics 620, Intel Core i7-7500U
1030 Points ∼95% +6%
Samsung Galaxy Book 12 SM-W728
Intel HD Graphics 620, Intel Core i5-7200U
971 Points ∼90%
Microsoft Surface Pro (2017) i5
Intel HD Graphics 620, Intel Core i5-7300U
889 Points ∼82% -8%
1280x720 Cloud Gate Standard Graphics
Dell Latitude 12 5285 2-in-1
Intel HD Graphics 620, Intel Core i7-7600U
8850 Points ∼100% +14%
Acer Switch 5 SW512-52-5819
Intel HD Graphics 620, Intel Core i7-7500U
8599 Points ∼97% +11%
Samsung Galaxy Book 12 SM-W728
Intel HD Graphics 620, Intel Core i5-7200U
7776 Points ∼88%
Lenovo Ideapad Miix 720-12IKB
Intel HD Graphics 620, Intel Core i7-7500U
7270 Points ∼82% -7%
Microsoft Surface Pro (2017) i5
Intel HD Graphics 620, Intel Core i5-7300U
7265 Points ∼82% -7%
3DMark 11 Performance
1683 points
3DMark Cloud Gate Standard Score
6149 points
3DMark Fire Strike Score
888 points
Aide
Bas Moyen Élevé Ultra
The Witcher 3 (2015) 14.9fps
Rise of the Tomb Raider (2016) 19.8fps
Farming Simulator 17 (2016) 58.524.1fps

Degré de la nuisance sonore

Au repos
/ 30.3 / dB(A)
Fortement sollicité
31.7 / 31.7 dB(A)
 
 
 
30 dB
silencieux
40 dB(A)
audible
50 dB(A)
bruyant
 
min: dark, med: mid, max: light   Audix TM1, Arta (à 15 cm de distance)   environment noise: 30.3 dB(A)
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2030.731.533.130.72531.73132.931.7313534.632.6354030.830.529.830.85038.539.337.938.56330.231.731.130.28028.126.828.228.110029.229.324.529.212525.526.524.925.516023.423.824.423.420023.322.723.323.325021.622.322.221.631520.920.821.420.940021.321.520.421.350020.720.619.220.763020.820.618.720.880020.119.918.220.1100019.919.817.719.9125018.418.717.518.4160020.220.417.320.2200019.519.917.419.5250019.819.817.519.8315019.919.717.519.9400018.518.717.718.5500018.218.317.818.2630018.218.11818.2800018.318.418.218.31000018.418.318.218.41250018.318.318.318.31600018.518.418.418.5SPL31.631.730.331.6N1.61.61.41.6median 19.9Samsung Galaxy Book 12 SM-W728median 19.9median 18.2median 19.9Delta2.31.72.22.332.330.732.735.232.330.732.534.538.430.737.836.138.338.537.832.830.931.632.132.830.229.229.329.330.227.727.528.626.627.726.926.525.925.726.930.4302526.430.432.231.92626.132.224.423.723.323.724.422.322.922.722.722.322.122.32221.622.121.22221.520.821.22223.620.7202222.824.619.819.422.827.628.418.518.827.623.924.818.618.323.922.523.517.717.622.525.126.317.617.825.125.424.717.617.525.426.225.817.717.526.223.222.717.717.423.224.925.417.617.824.923.12317.917.923.121.721.71818.121.721.221.718.218.321.220.220.818.418.420.21919.318.318.41918.418.418.218.318.418.318.318.318.318.33636.330.430.4362.42.51.41.42.4median 22.8Lenovo Ideapad Miix 720-12IKBmedian 23.5median 18.3median 18.3median 22.81.81.821.91.8hearing rangehide median Fan Noise
 36.4 °C51.2 °C52.5 °C 
 32.8 °C40.7 °C40.6 °C 
 32.6 °C33.6 °C33.5 °C 
Maximum: 52.5 °C
Moyenne: 39.3 °C
52 °C56.3 °C40.1 °C
42 °C50.1 °C38 °C
35.5 °C36 °C33.3 °C
Maximum: 56.3 °C
Moyenne: 42.6 °C
Alimentation (valeur maximale)  41 °C | Température ambiante de la pièce 24 °C | FIRT 550-Pocket
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2031.533.131.52531.732.931.7313532.6354031.829.831.85037.937.937.96329.731.129.78028.128.228.110030.424.530.41253424.93416035.524.435.520036.123.336.125035.422.235.431540.421.440.440047.120.447.150045.119.245.16305118.75180061.318.261.3100062.417.762.412505717.557160059.617.359.6200055.917.455.9250059.617.559.6315061.517.561.5400063.617.763.6500062.517.862.5630053.71853.7800050.318.250.31000050.118.250.11250041.818.341.81600036.118.436.1SPL71.530.371.5N26.11.426.1median 50.3Samsung Galaxy Book 12 SM-W728median 18.2median 50.3Delta10.62.210.636353637.428.237.435.825.435.83729.83737.928.537.940.728.940.740.429.140.440.928.940.943.528.443.545274548.723.848.75022.75056.721.956.758.320.958.358.120.558.162.219.562.264.918.464.960.818.260.860.917.860.961.21861.267.817.867.865.217.865.260.317.960.35817.95855.81855.856.71856.757.117.957.156.117.856.145.117.745.142.517.842.57430.77432.31.532.3median 57.1Microsoft Surface Pro (2017) i5median 18median 57.15.92.15.9036.837.8034.236036.236.9035.133.4032.933.6033.2350323203131.1029.733.6029.139.8028.640.5027.850.5027.251.8026.357.1025.960.4025.463.2024.760.9024.664024.665.1023.861.4023.853.5023.556.5023.851.9023.857.5023.759.4023.559.1023.560.8023.562.6023.657.8023.657.172.436.472.430.92.730.9median 24.6Dell Latitude 12 5285 2-in-1median 57.51.45.432.829.832.836.831.236.832.230.432.231.728.931.734.229.434.228.527.828.52625.92624.827.124.82724.92731.824.231.837.822.537.840.121.540.140.220.740.247.420.247.447.419.247.457.518.457.567.318.167.368.617.568.663.617.263.663.917.563.962.917.362.963.217.363.263.117.663.16117.66159.917.759.959.317.959.365.11865.166.418.266.463.818.263.857.618.357.675.730.175.734.71.434.7median 59.9Acer Switch 5 SW512-52-5819median 18.2median 59.99.81.49.833.335.233.333.538.433.536.738.536.731.432.131.430.829.330.826.926.626.928.725.728.733.726.433.740.726.140.745.323.745.346.722.746.739.921.639.948.320.848.363.82063.863.519.463.562.518.862.563.218.363.256.717.656.75417.85455.317.555.34717.54752.317.452.351.917.851.954.417.954.461.318.161.358.718.358.752.918.452.947.518.447.542.418.342.433.618.333.669.830.469.8261.426median 52.3Lenovo Ideapad Miix 720-12IKBmedian 18.3median 52.35.71.95.7hearing rangehide median Pink Noise
Samsung Galaxy Book 12 SM-W728 audio analysis

(-) | not very loud speakers (63.5 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 15% lower than median
(±) | linearity of bass is average (7.1% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 6.7% higher than median
(±) | linearity of mids is average (14.6% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 7.1% higher than median
(±) | linearity of highs is average (9.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (29.3% difference to median)
Compared to same class
» 79% of all tested devices in this class were better, 5% similar, 16% worse
» The best had a delta of 11%, average was 23%, worst was 53%
Compared to all devices tested
» 84% of all tested devices were better, 4% similar, 12% worse
» The best had a delta of 3%, average was 22%, worst was 53%

Microsoft Surface Pro (2017) i5 audio analysis

(-) | not very loud speakers (68 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 9.7% lower than median
(±) | linearity of bass is average (7% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.6% away from median
(+) | mids are linear (6.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.1% away from median
(+) | highs are linear (5.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (15.2% difference to median)
Compared to same class
» 9% of all tested devices in this class were better, 6% similar, 85% worse
» The best had a delta of 11%, average was 23%, worst was 53%
Compared to all devices tested
» 18% of all tested devices were better, 4% similar, 78% worse
» The best had a delta of 3%, average was 22%, worst was 53%

Dell Latitude 12 5285 2-in-1 audio analysis

(±) | speaker loudness is average but good (72.44 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 16.3% lower than median
(±) | linearity of bass is average (11% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.3% away from median
(±) | linearity of mids is average (11.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.6% away from median
(±) | linearity of highs is average (8.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (20% difference to median)
Compared to same class
» 38% of all tested devices in this class were better, 9% similar, 54% worse
» The best had a delta of 11%, average was 23%, worst was 53%
Compared to all devices tested
» 41% of all tested devices were better, 6% similar, 53% worse
» The best had a delta of 3%, average was 22%, worst was 53%

Acer Switch 5 SW512-52-5819 audio analysis

(-) | not very loud speakers (69 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 26.3% lower than median
(+) | bass is linear (6.6% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | reduced mids - on average 6.8% lower than median
(±) | linearity of mids is average (10.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.8% away from median
(+) | highs are linear (3.8% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (24.8% difference to median)
Compared to same class
» 60% of all tested devices in this class were better, 13% similar, 28% worse
» The best had a delta of 11%, average was 23%, worst was 53%
Compared to all devices tested
» 66% of all tested devices were better, 7% similar, 26% worse
» The best had a delta of 3%, average was 22%, worst was 53%

Lenovo Ideapad Miix 720-12IKB audio analysis

(-) | not very loud speakers (64 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 9.9% lower than median
(-) | bass is not linear (16.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 7.3% higher than median
(±) | linearity of mids is average (13.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.3% away from median
(±) | linearity of highs is average (12.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (21.7% difference to median)
Compared to same class
» 50% of all tested devices in this class were better, 4% similar, 46% worse
» The best had a delta of 11%, average was 23%, worst was 53%
Compared to all devices tested
» 50% of all tested devices were better, 6% similar, 44% worse
» The best had a delta of 3%, average was 22%, worst was 53%

Consommation énergétique
Éteint/en veilledarklight 0.6 / 2.3 Watts
Au reposdarkmidlight 3.9 / 9 / 11.9 Watts
Fortement sollicité midlight 27.3 / 27.9 Watts
 color bar
Légende: min: dark, med: mid, max: light        Metrahit Energy
Samsung Galaxy Book 12 SM-W728
7200U, HD Graphics 620, Samsung SSD PM871a MZNLN256HMHQ, Super AMOLED, 2160x1440, 12
Microsoft Surface Pro (2017) i5
7300U, HD Graphics 620, Samsung PM971 KUS030202M, IPS, 2736x1824, 12.3
Dell Latitude 12 5285 2-in-1
7600U, HD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1280, 12.3
Acer Switch 5 SW512-52-5819
7500U, HD Graphics 620, Intel SSD 600p SSDPEKKW512G7, IPS, 2160x1440, 12
Lenovo Ideapad Miix 720-12IKB
7500U, HD Graphics 620, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0), IPS, 2880x1920, 12
Power Consumption
14%
8%
8%
9%
Idle Minimum *
3.9
3.6
8%
2.85
27%
3.86
1%
3.5
10%
Idle Average *
9
8.1
10%
6.76
25%
6.4
29%
7.2
20%
Idle Maximum *
11.9
8.7
27%
6.91
42%
7.17
40%
7.9
34%
Load Average *
27.3
25.5
7%
32.88
-20%
30.5
-12%
29.6
-8%
Load Maximum *
27.9
23.5
16%
37.41
-34%
32.4
-16%
30.8
-10%

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

Autonomie
Au repos (module WiFi éteint, luminosité au minimum)
17h 11min
En lecture de Big Buck Bunny encodé en H.264 1080p
6h 49min
Samsung Galaxy Book 12 SM-W728
7200U, HD Graphics 620, 39 Wh
Microsoft Surface Pro (2017) i5
7300U, HD Graphics 620, 45 Wh
Dell Latitude 12 5285 2-in-1
7600U, HD Graphics 620, 42 Wh
Acer Switch 5 SW512-52-5819
7500U, HD Graphics 620,  Wh
Lenovo Ideapad Miix 720-12IKB
7500U, HD Graphics 620, 41 Wh
Autonomie de la batterie
2%
4%
-31%
-31%
Reader / Idle
1031
1054
2%
1075
4%
711
-31%
713
-31%
H.264
409
Load
168
105
95
111
WiFi v1.3
744
486
355
345

Points positifs

+ S-Pen and keyboard included
+ attractive and modest design
+ seemingly perfect workmanship
+ well-made, flexible keyboard case
+ good cameras with 13 and 5 MP
+ fast Wi-Fi and LTE
+ TPM / BitLocker and W10 Pro
+ good input devices
+ bright AMOLED screen
+ great viewing angle stability
+ very inconspicuous cooling system
+ long battery runtimes

Points négatifs

- 2x USB 3.1 Gen1 Type-C + audio jack only
- suboptimal color accuracy
- color accuracy cannot be improved
- PWM at 250 Hz
- tablet can heat up quite a lot
- throttling under continuous load
En test : le Samsung Galaxy Book 12 LTE. Modèle de est fourni par Samsung Allemagne.
En test : le Samsung Galaxy Book 12 LTE. Modèle de est fourni par Samsung Allemagne.

Les acheteurs potentiels ayant les moyens ne peuvent pas se tromper avec le Samsung Glaxaxy Book 12 LTE, s’ils apprécient les claviers connectables et la portabilité élevée. Mis à part les ports peu nombreux, Samsung a ici réussi à combiner le meilleur des deux mondes.

Le S-Pen et l’étui clavier sont tous les deux inclus, et sont aussi efficaces que la partie tablette très élégante et aux finitions parfaites.

Même si l’écran Super-AMOLED n’est pas parfait, il s’agit indéniablement d’un argument unique du nouveau convertible de Samsung, avec ses noirs parfaits et son contraste élevé. Notre appareil de test est équipé du LTE, et répond à toutes les exigences de la portabilité, avec le GPS et GLONASS, le TPM et le BitLocker sur Windows 10 Pro, et une bonne autonomie. Les utilisateurs pro seront ravis de la flexibilité de l’appareil, des bons périphériques d’entrée, et la qualité des webcams / appareils photos en font plus que des accessoires.

Le fait que Samsung ait choisi un refroidissement discret et une hausse de la température non négligeable en cas de sollicitations continues ne devraient pas être gênant, tant que l’appareil est utilisé pour ce qu’il est, un appareil de bureau. Par conséquent, nous recommandons cet appareil sans souci.

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

Samsung Galaxy Book 12 SM-W728 - 08/19/2017 v6
Sven Kloevekorn

Châssis
90 / 98 → 92%
Clavier
82%
Dispositif de pointage
91%
Connectivité
52 / 80 → 65%
Poids
73 / 78 → 88%
Autonomie
88%
Écran
88%
Performances en jeu
57 / 68 → 84%
Performances dans les applications
84 / 87 → 97%
Chauffe
84%
Nuisance sonore
97%
Audio
63 / 91 → 69%
Appareil photo
96 / 85 → 100%
Moyenne
80%
88%
Convertible - Moyenne compensée

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> Revues et rapports de ordinateurs portatifs et smartphones, ordiphones > Critiques > Courte critique du convertible Samsung Galaxy Book 12 LTE
Sven Kloevekorn, 2017-09-23 (Update: 2017-09-23)