宏碁 Chromebook R13 CB5-312T-K0YK 变形本简短评测

Name: Acer Chromebook R13 CB5-312T-K0YK
Brand: Acer

触控Chromebook。 宏碁的这台变形Chromebook搭配了一块触控IPS屏幕，运行安静且续航出众。它搭配了ARM处理器。这款机型售价约400欧元（约2951人民币）。

Sascha Mölck, ✓ Stefanie Voigt (translated by Yuchen Wang), Published 03/12/2017 🇺🇸 🇩🇪 ...

ARM Chromebook Convertible / 2-in-1 Touchscreen

Test device courtesy of notebooksbilliger.de

Download your licensed rating image as PNG / SVG

Acer Chromebook R13 CB5-312T-K0YK (Chromebook R13 Series)

Processor

Mediatek MT8173C 4 x 2.1 GHz, Cortex-A72/-A53

Graphics adapter

PowerVR GX6250, Core: 700 MHz

Memory

4 GB

, LPDDR3

Display

13.30 inch 16:9, 1920 x 1080 pixel 157 PPI, 电容式，10点触控，支持主动式手写笔, IPS, glossy: no

Storage

32 GB eMMC Flash, 32 GB

Connections

2 USB 3.0 / 3.1 Gen1, 1 HDMI, 1 Kensington Lock, Audio Connections: 整合音频接口, Card Reader: micro-SD, Brightness Sensor, Sensors: 加速感应器

Networking

802.11 a/b/g/n/ac (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/), Bluetooth 4

Size

height x width x depth (in mm): 15.5 x 326 x 228

Battery

53.9 Wh, 4670 mAh Lithium-Ion, 11.55 V, Battery runtime (according to manufacturer): 12 h

Operating System

Google Chrome OS

Camera

Webcam: 高清

Additional features

Speakers: 立体声, Keyboard: 孤岛式, Keyboard Light: no, 24 Months Warranty, fanless

Weight

1.49 kg, Power Supply: 272 g

Price

399 Euro

Links

Acer homepage
Acer notebook section

Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

see all specifications

Size Comparison

Acer Swift 1 SF114-31-P6F6 HP Stream 13-c102ng Acer Aspire ES1-332-P91H Acer Chromebook R13 CB5-312T-K0YK Lenovo E31-70 80KX015RGE HP Chromebook 13 G1 Core m5 DIN A4 ❌

Left: USB 3.1 Gen 1 (Type-C), HDMI, USB 3.1 Gen 1 (Type-A), microSD card reader

Right: Volume control, combo audio, power button, cable lock slot


205 cd/m²	217 cd/m²	198 cd/m²
201 cd/m²	192 cd/m²	215 cd/m²
208 cd/m²	204 cd/m²	199 cd/m²

Distribution of brightness

tested with X-Rite i1Pro 2

Maximum: 217 cd/m² (Nits) Average: 204.3 cd/m² Minimum: 14 cd/m²
Brightness Distribution: 88 %
Center on Battery: 194 cd/m²
Contrast: 835:1 (Black: 0.23 cd/m²)
ΔE Greyscale 3.99 | 0.5-98 Ø5.2
Gamma: 2.45

	Acer Chromebook R13 CB5-312T-K0YK IPS, 1920x1080, 13.3"	HP Chromebook 13 G1 Core m5 3200x1800, 13.3"	Acer Swift 1 SF114-31-P6F6 TN LED, 1366x768, 14"	Lenovo E31-70 80KX015RGE TN, 1366x768, 13.3"	Acer Aspire ES1-332-P91H TN LED, 1366x768, 13.3"	HP Stream 13-c102ng TN, 1366x768, 13.3"
Display
Display P3 Coverage			40.97	49.25	44.72	40.68
sRGB Coverage			61.5	73.5	67.3	59.8
AdobeRGB 1998 Coverage			42.35	50.9	46.2	42.32
Response Times		-20%	-7%	-3%	-17%	-14%
Response Time Grey 50% / Grey 80% *	38 ?(14, 24)	39.2 ?(18, 21.2) -3%	32 ?(10, 22) 16%	44.4 ?(22.8, 21.6) -17%	39 ?(20, 19) -3%	45 ?(21, 24) -18%
Response Time Black / White *	23 ?(5, 18)	31.6 ?(11.6, 20) -37%	30 ?(16, 14) -30%	20.4 ?(14, 6.4) 11%	30 ?(12, 18) -30%	25 ?(7, 18) -9%
PWM Frequency		1389 ?(44)	200 ?(90)	200 ?(90)	1000 ?(90)	201 ?(30)
Screen		-26%	-60%	-66%	-67%	-42%
Brightness middle	192	355.5 85%	270 41%	206 7%	255 33%	190 -1%
Brightness	204	330 62%	247 21%	200 -2%	232 14%	179 -12%
Brightness Distribution	88	90 2%	80 -9%	84 -5%	82 -7%	85 -3%
Black Level *	0.23	0.804 -250%	0.57 -148%	0.6 -161%	0.52 -126%	0.33 -43%
Contrast	835	442 -47%	474 -43%	343 -59%	490 -41%	576 -31%
Greyscale dE 2000 *	3.99	4.35 -9%	12.73 -219%	10.94 -174%	15.01 -276%	10.32 -159%
Gamma	2.45 ^90%	2.35 ^94%	2.36 ^93%	2.76 ^80%	2.41 ^91%	2.48 ^89%
CCT	6380 ^102%	6269 ^104%	14629 ^44%	13282 ^49%	24382 ^27%	11884 ^55%
Colorchecker dE 2000 *		3.75	3.01	9.2	13.12	9.84
Colorchecker dE 2000 max. *		7.15	6.33	14.8	22.98
Color Space (Percent of AdobeRGB 1998)			39	46.92	43	38
Color Space (Percent of sRGB)			62	73.36	68	60
Total Average (Program / Settings)		-23% / -25%	-34% / -46%	-35% / -50%	-42% / -55%	-28% / -35%

* ... smaller is better

Screen Flickering / PWM (Pulse-Width Modulation)

ℹ

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.

Screen flickering / PWM not detected

In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8702 (minimum: 5 - maximum: 343500) Hz was measured.

Display Response Times

ℹ

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.

↔ Response Time Black to White
23 ms ... rise ↗ and fall ↘ combined	↗ 5 ms rise
23 ms ... rise ↗ and fall ↘ combined	↘ 18 ms fall
The screen shows good response rates in our tests, but may be too slow for competitive gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 48 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (20.9 ms).
↔ Response Time 50% Grey to 80% Grey
38 ms ... rise ↗ and fall ↘ combined	↗ 14 ms rise
38 ms ... rise ↗ and fall ↘ combined	↘ 24 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 51 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.8 ms).

Geekbench 4.0
64 Bit Single-Core Score
Acer Aspire ES1-332-P91H Intel Pentium N4200	1555 Points +7%
Acer Chromebook R13 CB5-312T-K0YK Mediatek MT8173C	1451 Points
Acer Swift 1 SF114-31-P6F6 Intel Pentium N3710	1179 Points -19%
64 Bit Multi-Core Score
Acer Aspire ES1-332-P91H Intel Pentium N4200	4162 Points +62%
Acer Swift 1 SF114-31-P6F6 Intel Pentium N3710	3433 Points +34%
Acer Chromebook R13 CB5-312T-K0YK Mediatek MT8173C	2570 Points

Sunspider - 1.0 Total Score
Acer Chromebook R13 CB5-312T-K0YK Mediatek MT8173C	578 ms *
HP Stream 13-c102ng Intel Celeron N3050	407.5 ms * +29%
Acer Aspire ES1-332-P91H Intel Pentium N4200	232 ms * +60%
HP Chromebook 13 G1 Core m5 Intel Core m5-6Y57	228.8 ms * +60%

JetStream 1.1 - Total Score
HP Chromebook 13 G1 Core m5 Intel Core m5-6Y57	164 Points +188%
Lenovo E31-70 80KX015RGE Intel Core i3-5005U	106.9 Points +88%
Acer Aspire ES1-332-P91H Intel Pentium N4200	89.1 Points +56%
Acer Swift 1 SF114-31-P6F6 Intel Pentium N3710	62.9 Points +10%
Acer Chromebook R13 CB5-312T-K0YK Mediatek MT8173C	57 Points

Mozilla Kraken 1.1 - Total
Acer Swift 1 SF114-31-P6F6 Intel Pentium N3710	4425 ms * -34%
Acer Chromebook R13 CB5-312T-K0YK Mediatek MT8173C	3297 ms *
Acer Aspire ES1-332-P91H Intel Pentium N4200	3027 ms * +8%
HP Chromebook 13 G1 Core m5 Intel Core m5-6Y57	1056 ms * +68%

Octane V2 - Total Score
HP Chromebook 13 G1 Core m5 Intel Core m5-6Y57	28478 Points +181%
Acer Aspire ES1-332-P91H Intel Pentium N4200	12856 Points +27%
Acer Chromebook R13 CB5-312T-K0YK Mediatek MT8173C	10139 Points
Acer Swift 1 SF114-31-P6F6 Intel Pentium N3710	9032 Points -11%

WebXPRT 2015 - Overall
HP Chromebook 13 G1 Core m5 Intel Core m5-6Y57	347 Points +151%
Acer Aspire ES1-332-P91H Intel Pentium N4200	210 Points +52%
Acer Chromebook R13 CB5-312T-K0YK Mediatek MT8173C	138 Points

* ... smaller is better

3DMark | GFXBench (DX / GLBenchmark) 2.7 | GFXBench 3.0 | GFXBench 3.1 | GFXBench

3DMark - 1280x720 offscreen Ice Storm Unlimited Score
Acer Aspire ES1-332-P91H Intel HD Graphics 505, Intel Pentium N4200	24021 Points +48%
Acer Chromebook R13 CB5-312T-K0YK PowerVR GX6250, Mediatek MT8173C	16197 Points

GFXBench (DX / GLBenchmark) 2.7
1920x1080 T-Rex Offscreen
Acer Aspire ES1-332-P91H Intel HD Graphics 505, Intel Pentium N4200	47.2 fps +57%
Acer Chromebook R13 CB5-312T-K0YK PowerVR GX6250, Mediatek MT8173C	30 fps
T-Rex Onscreen
Acer Aspire ES1-332-P91H Intel HD Graphics 505, Intel Pentium N4200	57.3 fps +173%
Acer Chromebook R13 CB5-312T-K0YK PowerVR GX6250, Mediatek MT8173C	21 fps

GFXBench 3.0
1920x1080 1080p Manhattan Offscreen
Acer Aspire ES1-332-P91H Intel HD Graphics 505, Intel Pentium N4200	18.9 fps +35%
Acer Chromebook R13 CB5-312T-K0YK PowerVR GX6250, Mediatek MT8173C	14 fps
on screen Manhattan Onscreen OGL
Acer Aspire ES1-332-P91H Intel HD Graphics 505, Intel Pentium N4200	29.2 fps +356%
Acer Chromebook R13 CB5-312T-K0YK PowerVR GX6250, Mediatek MT8173C	6.4 fps

GFXBench 3.1
1920x1080 Manhattan ES 3.1 Offscreen
Acer Aspire ES1-332-P91H Intel HD Graphics 505, Intel Pentium N4200	14.1 fps +57%
Acer Chromebook R13 CB5-312T-K0YK PowerVR GX6250, Mediatek MT8173C	9 fps
on screen Manhattan ES 3.1 Onscreen
Acer Aspire ES1-332-P91H Intel HD Graphics 505, Intel Pentium N4200	23.5 fps +434%
Acer Chromebook R13 CB5-312T-K0YK PowerVR GX6250, Mediatek MT8173C	4.4 fps

GFXBench
1920x1080 Car Chase Offscreen
Acer Aspire ES1-332-P91H Intel HD Graphics 505, Intel Pentium N4200	10.3 fps +171%
Acer Chromebook R13 CB5-312T-K0YK PowerVR GX6250, Mediatek MT8173C	3.8 fps
on screen Car Chase Onscreen
Acer Aspire ES1-332-P91H Intel HD Graphics 505, Intel Pentium N4200	16.6 fps +326%
Acer Chromebook R13 CB5-312T-K0YK PowerVR GX6250, Mediatek MT8173C	3.9 fps

Max. Load

Idle


30.3 °C	30.6 °C	23.3 °C
25.7 °C	28 °C	23.4 °C
23.3 °C	23.2 °C	22.5 °C

Maximum: 30.6 °C
Average: 25.6 °C


23.1 °C	28.6 °C	29.5 °C
22.9 °C	27 °C	26.8 °C
23.1 °C	23.8 °C	24.6 °C

Maximum: 29.5 °C
Average: 25.5 °C

Power Supply (max.) 28 °C | Room Temperature 21 °C | FIRT 550-Pocket

(+) The average temperature for the upper side under maximal load is 25.6 °C / 78 F, compared to the average of 29.8 °C / 86 F for the devices in the class Netbook.
(+) The maximum temperature on the upper side is 30.6 °C / 87 F, compared to the average of 33.1 °C / 92 F, ranging from 21.6 to 53.2 °C for the class Netbook.
(+) The bottom heats up to a maximum of 29.5 °C / 85 F, compared to the average of 36.6 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 21.9 °C / 71 F, compared to the device average of 29.8 °C / 86 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 23.3 °C / 73.9 F and are therefore cool to the touch.
(+) The average temperature of the palmrest area of similar devices was 29.3 °C / 84.7 F (+6 °C / 10.8 F).

Acer Chromebook R13 CB5-312T-K0YK audio analysis

(±) | speaker loudness is average but good (73 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 13.2% lower than median
(+) | bass is linear (5.6% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.2% away from median
(+) | mids are linear (6.9% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.5% away from median
(+) | highs are linear (5.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (13.9% difference to median)
Compared to same class
» 0% of all tested devices in this class were better, 14% similar, 86% worse
» The best had a delta of 14%, average was 25%, worst was 35%
Compared to all devices tested
» 14% of all tested devices were better, 4% similar, 83% worse
» The best had a delta of 4%, average was 25%, worst was 134%

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 (10.2% difference to median)
Compared to same class
» 6% of all tested devices in this class were better, 2% similar, 92% worse
» The best had a delta of 5%, average was 19%, worst was 53%
Compared to all devices tested
» 4% of all tested devices were better, 1% similar, 95% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Power Consumption

Off / Standby	0.3 / 0.32 Watt
Idle	3.8 / 6.2 / 6.6 Watt
Load	11 / 12.7 Watt


Key: min: , med: , max: Metrahit Energy

Battery Runtime


WiFi Websurfing (Chrome 56)		12h 53min

Battery Runtime - WiFi Websurfing
Acer Chromebook R13 CB5-312T-K0YK MT8173C, PowerVR GX6250, 53.9 Wh	773 min
Acer Swift 1 SF114-31-P6F6 N3710, HD Graphics 405 (Braswell), 55 Wh	661 min -14%
HP Chromebook 13 G1 Core m5 6Y57, HD Graphics 515, 45 Wh	404 min -48%
HP Stream 13-c102ng N3050, HD Graphics (Braswell), 37 Wh	370 min -52%
Acer Aspire ES1-332-P91H Pentium N4200, HD Graphics 505, 36 Wh	365 min -53%
Lenovo E31-70 80KX015RGE 5005U, HD Graphics 5500, 35 Wh	254 min -67%

Pros

+ IPS屏幕面板

+ 全高清分辨率

+ 无噪音系统

+ 超长电池续航

+ 支持USB-C

Cons

- 屏幕昏暗

- 机身不够坚固

- 无升级空间

In review: Acer Chromebook R13 CB5-312T-K0YK. Test model courtesy of Notebooksbilliger.de

宏碁的Chromebook R13搭载了基于ARM设计的MT8153C系统芯片。这块芯片支持被动散热，这台设备也正是采用了这种设计。因此，这台Chromebook运行完全无噪音。宏碁Chromebook R13并不乏新意。它是一台13.3寸的Chrome变形本。触控屏幕对于Chrome OS来说有一些多余，不过这可能将在它获得对安卓应用的官方支持后有所改变。它提供了高速的ac标准无线网模组，同时带来了出色的电池续航。