Acer Aspire Switch 12 Alpha SA5-271-56HM 变形本简短评测
Acer Aspire Switch Alpha 12 SA5-271-56HM (Aspire Switch Series)
Processor
Intel Core i5-6200U 2 x 2.3 - 2.8 GHz, Skylake, 双核心 TPM 15 瓦
Graphics adapter
Intel HD Graphics 520, Core: 400 MHz, RAM: 930 MHz, 20.19.15.4454
Memory
4 GB
, DDR3L
Display
12.00 inch 16:9, 2160 x 1440 pixel 216 PPI, 电容式，多点触控, native pen support, Panasonic VVX12T041N00, IPS, glossy: yes, detachable screen
Mainboard
Intel Skylake-U Premium PCH
Storage
Kingston RBU-SNS8152S3256GG2, 256 GB
, 128 GB SATA 3.1
Weight
1.29 kg, Power Supply: 330 g
Price
800 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.
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Panasonic VVX12T041N00 tested with X-Rite i1Pro 2
Maximum: 345 cd/m² (Nits) Average: 328 cd/m² Minimum: 18 cd/m²Brightness Distribution: 91 %
Center on Battery: 345 cd/m²
Contrast: 908:1 (Black: 0.38 cd/m²)
ΔE Color 8.4 | 0.5-29.43 Ø4.91
ΔE Greyscale 4.3 | 0.5-98 Ø5.2
96% sRGB (Calman 2D)
62% AdobeRGB 1998 (Argyll 1.6.3 3D)
66.9% AdobeRGB 1998 (Argyll 2.2.0 3D)
96.1% sRGB (Argyll 2.2.0 3D)
65.5% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.63
| Acer Aspire Switch Alpha 12 SA5-271-56HM HD Graphics 520, 6200U, Kingston RBU-SNS8152S3256GG2 | Lenovo ThinkPad X1 Tablet HD Graphics 515, 6Y75, Samsung PM871 MZYLN256HCHP | HP Elite x2 1012 G1 HD Graphics 515, 6Y54, Liteon L8H-256V2G | Microsoft Surface Pro 4, Core i5, 128GB HD Graphics 520, 6300U, Samsung MZFLV128 NVMe | Microsoft Surface Pro 3 HD Graphics 4400, 4300U, Hynix HFS128G3MNM | Lenovo IdeaPad Miix 700 HD Graphics 515, 6Y54, Samsung MZNLN128HCGR-000L2 | |
|---|---|---|---|---|---|---|
| Display | -4% | -20% | -0% | -4% | 3% | |
| Display P3 Coverage | 65.5 | 62.4 -5% | 53.8 -18% | 65 -1% | 63.6 -3% | 68.1 4% |
| sRGB Coverage | 96.1 | 93 -3% | 73.7 -23% | 96.5 0% | 88.8 -8% | 97.4 1% |
| AdobeRGB 1998 Coverage | 66.9 | 63.9 -4% | 53.8 -20% | 67 0% | 65.6 -2% | 70.2 5% |
| Response Times | -24% | -17% | -72% | -26% | ||
| Response Time Grey 50% / Grey 80% * | 20 ? | 28.4 ? -42% | 33.2 ? -66% | 46 ? -130% | 30 ? -50% | |
| Response Time Black / White * | 34 ? | 17.6 ? 48% | 22.8 ? 33% | 31.2 ? 8% | 16 ? 53% | |
| PWM Frequency | 1000 ? | 222.2 ? -78% | 50 ? -95% | 200 ? -80% | ||
| Screen | -15% | -6% | 17% | 3% | -7% | |
| Brightness middle | 345 | 342.4 -1% | 322 -7% | 413 20% | 355.3 3% | 341 -1% |
| Brightness | 328 | 315 -4% | 319 -3% | 396 21% | 338 3% | 318 -3% |
| Brightness Distribution | 91 | 85 -7% | 97 7% | 87 -4% | 91 0% | 87 -4% |
| Black Level * | 0.38 | 0.744 -96% | 0.42 -11% | 0.36 5% | 0.33 13% | 0.36 5% |
| Contrast | 908 | 460 -49% | 767 -16% | 1147 26% | 1077 19% | 947 4% |
| Colorchecker dE 2000 * | 8.4 | 5.33 37% | 6.02 28% | 3.09 63% | 4.72 44% | 6 29% |
| Colorchecker dE 2000 max. * | 11.9 | 9.25 22% | 10.06 15% | |||
| Greyscale dE 2000 * | 4.3 | 5.36 -25% | 6.29 -46% | 3.92 9% | 6.53 -52% | 8.12 -89% |
| Gamma | 2.63 84% | 2.12 104% | 2.4 92% | 2.3 96% | 2.17 101% | 2.23 99% |
| CCT | 7368 88% | 7671 85% | 7712 84% | 7333 89% | 6707 97% | 7011 93% |
| Color Space (Percent of AdobeRGB 1998) | 62 | 57 -8% | 47.8 -23% | 61 -2% | 59.37 -4% | 63.4 2% |
| Color Space (Percent of sRGB) | 93 | 73.2 | 97 | 97.4 | ||
| Total Average (Program / Settings) | -14% /
-14% | -14% /
-11% | -18% /
-6% | -1% /
1% | -10% /
-9% |
* ... smaller is better
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 | ||
|---|---|---|
| 34 ms ... rise ↗ and fall ↘ combined | ↗ 15 ms rise |   |
| ↘ 19 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 90 % 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 | ||
| 20 ms ... rise ↗ and fall ↘ combined | ↗ 5 ms rise |   |
| ↘ 15 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 0.165 (minimum) to 636 (maximum) ms. » 29 % of all devices are better. This means that the measured response time is better than the average of all tested devices (32.8 ms). | ||
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 detected | 1000 Hz | ≤ 100 % brightness setting |   |
The display backlight flickers at 1000 Hz (worst case, e.g., utilizing PWM) Flickering detected at a brightness setting of 100 % and below. There should be no flickering or PWM above this brightness setting. The frequency of 1000 Hz is quite high, so most users sensitive to PWM should not notice any flickering. In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8715 (minimum: 5 - maximum: 343500) Hz was measured. | |||
| PCMark 8 Home Score Accelerated v2 | 3281 points | |
| PCMark 8 Work Score Accelerated v2 | 3996 points | |
Help | ||
| Acer Aspire Switch Alpha 12 SA5-271-56HM HD Graphics 520, 6200U, Kingston RBU-SNS8152S3256GG2 | Microsoft Surface Pro 4, Core i5, 128GB HD Graphics 520, 6300U, Samsung MZFLV128 NVMe | Lenovo ThinkPad X1 Tablet HD Graphics 515, 6Y75, Samsung PM871 MZYLN256HCHP | HP Elite x2 1012 G1 HD Graphics 515, 6Y54, Liteon L8H-256V2G | HP Spectre x2 12-a003ng K3D42EA HD Graphics 515, 6Y75, Sandisk X300 SD7SN6S-256G-1006 | Lenovo IdeaPad Miix 700 HD Graphics 515, 6Y54, Samsung MZNLN128HCGR-000L2 | |
|---|---|---|---|---|---|---|
| AS SSD | 25% | 15% | 6% | -17% | -0% | |
| Score Read | 460 | 645 40% | 450 -2% | 351 -24% | 333 -28% | 459 0% |
| Score Write | 228 | 239 5% | 316 39% | 338 48% | 223 -2% | 227 0% |
| Score Total | 918 | 1190 30% | 997 9% | 864 -6% | 722 -21% | 913 -1% |
| CrystalDiskMark 3.0 | 9% | 10% | 15% | 0% | 5% | |
| Read Seq | 518 | 666 29% | 420.3 -19% | 501 -3% | 410.1 -21% | 497.9 -4% |
| Write Seq | 199.9 | 154.2 -23% | 305.6 53% | 297.2 49% | 316 58% | 153.5 -23% |
| Read 4k | 29.3 | 28.51 -3% | 32.36 10% | 28.31 -3% | 27.4 -6% | 36.2 24% |
| Write 4k | 76.8 | 101.5 32% | 73.6 -4% | 90.3 18% | 53.5 -30% | 95.5 24% |
| Total Average (Program / Settings) | 17% /
16% | 13% /
12% | 11% /
11% | -9% /
-7% | 3% /
3% |
Kingston RBU-SNS8152S3256GG2
Sequential Read:
518 MB/s
Sequential Write:
199.9 MB/s
512K Read:
374.9 MB/s
512K Write:
201 MB/s
4K Read:
29.3 MB/s
4K Write:
76.8 MB/s
4K QD32 Read:
272 MB/s
4K QD32 Write:
197.1 MB/s
| 3DMark 11 Performance | 1585 points | |
| 3DMark Cloud Gate Standard Score | 5608 points | |
Help | ||
| low | med. | high | ultra | |
|---|---|---|---|---|
| BioShock Infinite (2013) | 54.4 | 28.6 | 24.2 | 6.9 |
| Battlefield 4 (2013) | 45.8 | 31.4 | 19.7 | 6 |
| Rise of the Tomb Raider (2016) | 17 | 10.8 | 6.1 |
(-) The average temperature for the upper side under maximal load is 41.4 °C / 107 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 46.7 °C / 116 F, compared to the average of 35.4 °C / 96 F, ranging from 19.6 to 60 °C for the class Convertible.
(-) The bottom heats up to a maximum of 51 °C / 124 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 28.3 °C / 83 F, compared to the device average of 30.3 °C / 87 F.
(-) The palmrests and touchpad can get very hot to the touch with a maximum of 44.4 °C / 111.9 F.
(-) The average temperature of the palmrest area of similar devices was 28 °C / 82.4 F (-16.4 °C / -29.5 F).
(-) The maximum temperature on the upper side is 46.7 °C / 116 F, compared to the average of 35.4 °C / 96 F, ranging from 19.6 to 60 °C for the class Convertible.
(-) The bottom heats up to a maximum of 51 °C / 124 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 28.3 °C / 83 F, compared to the device average of 30.3 °C / 87 F.
(-) The palmrests and touchpad can get very hot to the touch with a maximum of 44.4 °C / 111.9 F.
(-) The average temperature of the palmrest area of similar devices was 28 °C / 82.4 F (-16.4 °C / -29.5 F).
| Acer Aspire Switch Alpha 12 SA5-271-56HM HD Graphics 520, 6200U, Kingston RBU-SNS8152S3256GG2 | Microsoft Surface Pro 4, Core i5, 128GB HD Graphics 520, 6300U, Samsung MZFLV128 NVMe | Lenovo ThinkPad X1 Tablet HD Graphics 515, 6Y75, Samsung PM871 MZYLN256HCHP | HP Elite x2 1012 G1 HD Graphics 515, 6Y54, Liteon L8H-256V2G | Lenovo IdeaPad Miix 700 HD Graphics 515, 6Y54, Samsung MZNLN128HCGR-000L2 | HP Spectre x2 12-a003ng K3D42EA HD Graphics 515, 6Y75, Sandisk X300 SD7SN6S-256G-1006 | |
|---|---|---|---|---|---|---|
| Power Consumption | 20% | 27% | 20% | 14% | 26% | |
| Idle Minimum * | 7.3 | 4.4 40% | 5.87 20% | 3.7 49% | 4 45% | 4.5 38% |
| Idle Average * | 10 | 9 10% | 6.05 39% | 6.8 32% | 8.6 14% | 7.7 23% |
| Idle Maximum * | 10.15 | 10.7 -5% | 6.13 40% | 7.6 25% | 9.3 8% | 8.3 18% |
| Load Average * | 25.2 | 19.6 22% | 21.27 16% | 22.5 11% | 18.6 26% | 19.8 21% |
| Load Maximum * | 29.3 | 19.9 32% | 23.03 21% | 34.5 -18% | 36.3 -24% | 20.6 30% |
* ... smaller is better
Power Consumption
| Off / Standby |   0.3 / 0.4 Watt |
| Idle |  7.3 / 10 / 10.15 Watt |
| Load |
25.2 / 29.3 Watt |
    
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
| Acer Aspire Switch Alpha 12 SA5-271-56HM HD Graphics 520, 6200U, Kingston RBU-SNS8152S3256GG2 | Microsoft Surface Pro 4, Core i5, 128GB HD Graphics 520, 6300U, Samsung MZFLV128 NVMe | Lenovo ThinkPad X1 Tablet HD Graphics 515, 6Y75, Samsung PM871 MZYLN256HCHP | HP Elite x2 1012 G1 HD Graphics 515, 6Y54, Liteon L8H-256V2G | HP Spectre x2 12-a003ng K3D42EA HD Graphics 515, 6Y75, Sandisk X300 SD7SN6S-256G-1006 | Lenovo IdeaPad Miix 700 HD Graphics 515, 6Y54, Samsung MZNLN128HCGR-000L2 | |
|---|---|---|---|---|---|---|
| Battery Runtime | ||||||
| WiFi Websurfing | 321 | 427 33% | 300 -7% | 443 38% | 361 12% | 440 37% |
| Battery Runtime | 20% | 2% | 7% | 49% | 24% | |
| Reader / Idle | 640 | 899 40% | 628 -2% | 732 14% | 954 49% | 861 35% |
| H.264 | 468 | 432 -8% | 450 -4% | |||
| Load | 112 | 111 -1% | 118 5% | 130 16% | 166 48% | 157 40% |
| Total Average (Program / Settings) | 27% /
24% | -3% /
-1% | 23% /
15% | 31% /
36% | 31% /
27% |
Pros
+ 高性能
+ 无风扇散热系统
+ 优秀的输入设备
+ 高品质机身
Cons
- 扬声器品质低
- 电池续航短
一个余音绕梁的平静故事：Acer Switch Alpha 12不仅有包括键盘底座800欧元（约5931人民币）的低售价，同时也具备全面的表现和创新的水冷系统。这台12寸变形本采用了高品质机身，相比一些售价两倍于它的机型也毫不逊色。
略显笨重：这台平板电脑对于日常使用来说还是有些略重。它的输入设备几乎可以和更昂贵的微软设备相媲美。而这台Acer新变形本的屏幕也十分惊艳。当然，无风扇的散热系统究竟可以帮助它实现怎么样的性能水平是我们最感兴趣的。尽管它搭配了强劲的英特尔酷睿i5处理器，面对其它无风扇机型却不会显得“鲁莽”。生产商为它搭配的散热设计可以成为轻薄笔记本电脑和平板电脑的一项技术革新。如果Acer可以改进电池续航和音响效果的话，它的竞争对手将会很难站稳脚跟。
我们十分喜欢Acer的新Switch Alpha 12。它的售价约800欧元（约5931人民币），却不仅靠实惠取胜，在其他一些方面也有亮点：吵闹的风扇从此将会成为历史。
无法接受它电池续航的用户可以考虑Surface系列或联想 IdeaPad Miix 700。惠普的产品如Spectre x2也十分值得推荐。
注：本文是基于完整评测的缩减版本，阅读完整的英文评测，请点击这里。
Acer Aspire Switch Alpha 12 SA5-271-56HM
- 08/22/2016 v5.1 (old)
Nino Ricchizzi
Convertible - Weighted Average
Price comparison
