联想 ThinkPad Helix 2 平板电脑简短评测
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LG LD116WF1-SPN2 tested with X-Rite i1Pro 2
Maximum: 375 cd/m² (Nits) Average: 342.2 cd/m²Brightness Distribution: 86 %
Center on Battery: 365 cd/m²
Contrast: 1109:1 (Black: 0.329 cd/m²)
ΔE Color 4.37 | 0.5-29.43 Ø4.91
ΔE Greyscale 2.8 | 0.5-98 Ø5.2
Gamma: 2.3
| Lenovo ThinkPad Helix 2 HD Graphics 5300, 5Y71, Toshiba THNSFJ256GDNU 256 GB | Dell Venue 11 Pro 7140 HD Graphics 5300, 5Y10a, Sandisk X110 M.2 SD6SP1M-128G | Microsoft Surface Pro 3 HD Graphics 4400, 4300U, Hynix HFS128G3MNM | Toshiba Portege Z10t-A2111 HD Graphics 4200, 4610Y, Samsung PM851 Series MZMTE256HMHP | |
|---|---|---|---|---|
| Display | ||||
| Display P3 Coverage | 63.6 | 46.17 | ||
| sRGB Coverage | 88.8 | 65.2 | ||
| AdobeRGB 1998 Coverage | 65.6 | 48 | ||
| Screen | -15% | -20% | -53% | |
| Brightness middle | 365 | 386 6% | 355.3 -3% | 331.1 -9% |
| Brightness | 342 | 357 4% | 338 -1% | 315 -8% |
| Brightness Distribution | 86 | 84 -2% | 91 6% | 70 -19% |
| Black Level * | 0.329 | 0.4 -22% | 0.33 -0% | 0.511 -55% |
| Contrast | 1109 | 965 -13% | 1077 -3% | 648 -42% |
| Colorchecker dE 2000 * | 4.37 | 3.71 15% | 4.72 -8% | 14.29 -227% |
| Greyscale dE 2000 * | 2.8 | 5.4 -93% | 6.53 -133% | 3.03 -8% |
| Gamma | 2.3 96% | 2.33 94% | 2.17 101% | 1.96 112% |
| CCT | 6595 99% | 6666 98% | 6707 97% | 6525 100% |
| Color Space (Percent of AdobeRGB 1998) | 59.37 | 44 | ||
| Total Average (Program / Settings) | -15% /
-15% | -20% /
-20% | -53% /
-53% |
* ... smaller is better
| Cinebench R15 | |
| CPU Single 64Bit (sort by value) | |
| Lenovo ThinkPad Helix 2 | |
| Dell Venue 11 Pro 7140 | |
| Toshiba Portege Z10t-A2111 | |
| CPU Multi 64Bit (sort by value) | |
| Lenovo ThinkPad Helix 2 | |
| Dell Venue 11 Pro 7140 | |
| Toshiba Portege Z10t-A2111 | |
Toshiba THNSFJ256GDNU 256 GB
Transfer Rate Minimum:
161.3 MB/s
Transfer Rate Maximum:
361.2 MB/s
Transfer Rate Average:
263.9 MB/s
Access Time:
0.1 ms
Burst Rate:
141.5 MB/s
CPU Usage:
8.1 %
| PCMark 7 - Score (sort by value) | |
| Lenovo ThinkPad Helix 2 | |
| Dell Venue 11 Pro 7140 | |
| Microsoft Surface Pro 3 | |
| Toshiba Portege Z10t-A2111 | |
| Lenovo ThinkPad Helix | |
| PCMark 8 | |
| Home Score Accelerated v2 (sort by value) | |
| Lenovo ThinkPad Helix 2 | |
| Dell Venue 11 Pro 7140 | |
| Toshiba Portege Z10t-A2111 | |
| Creative Score Accelerated v2 (sort by value) | |
| Lenovo ThinkPad Helix 2 | |
| Toshiba Portege Z10t-A2111 | |
| Work Score Accelerated v2 (sort by value) | |
| Lenovo ThinkPad Helix 2 | |
| Dell Venue 11 Pro 7140 | |
| Toshiba Portege Z10t-A2111 | |
| PCMark 7 Score | 4602 points | |
| PCMark 8 Home Score Accelerated v2 | 2690 points | |
| PCMark 8 Creative Score Accelerated v2 | 3090 points | |
| PCMark 8 Work Score Accelerated v2 | 3806 points | |
Help | ||
| 3DMark 11 - 1280x720 Performance GPU (sort by value) | |
| Lenovo ThinkPad Helix 2 | |
| Dell Venue 11 Pro 7140 | |
| Microsoft Surface Pro 3 | |
| Toshiba Portege Z10t-A2111 | |
| Lenovo ThinkPad Helix | |
| 3DMark | |
| 1280x720 Ice Storm Standard Graphics (sort by value) | |
| Lenovo ThinkPad Helix 2 | |
| Dell Venue 11 Pro 7140 | |
| Toshiba Portege Z10t-A2111 | |
| Lenovo ThinkPad Helix | |
| 1280x720 Cloud Gate Standard Graphics (sort by value) | |
| Lenovo ThinkPad Helix 2 | |
| Dell Venue 11 Pro 7140 | |
| Toshiba Portege Z10t-A2111 | |
| Lenovo ThinkPad Helix | |
| 1920x1080 Fire Strike Graphics (sort by value) | |
| Lenovo ThinkPad Helix 2 | |
| Dell Venue 11 Pro 7140 | |
| Toshiba Portege Z10t-A2111 | |
| Lenovo ThinkPad Helix | |
| 3DMark 06 Standard Score | 4686 points | |
| 3DMark 11 Performance | 753 points | |
| 3DMark Ice Storm Standard Score | 35119 points | |
| 3DMark Cloud Gate Standard Score | 3522 points | |
| 3DMark Fire Strike Score | 450 points | |
Help | ||
| low | med. | high | ultra | |
|---|---|---|---|---|
| Tomb Raider (2013) | 35.9 | 18.8 | 12.6 | |
| BioShock Infinite (2013) | 27.1 | 15 | 12.6 | 3.9 |
| Dota 2 (2013) | 50.9 | 28.6 | ||
| Fifa 15 (2014) | 28.2 | 21.2 |
(±) The average temperature for the upper side under maximal load is 35.3 °C / 96 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 42.1 °C / 108 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 42.3 °C / 108 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 29.1 °C / 84 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 37.5 °C / 99.5 F.
(-) The average temperature of the palmrest area of similar devices was 28 °C / 82.4 F (-9.5 °C / -17.1 F).
(±) The maximum temperature on the upper side is 42.1 °C / 108 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 42.3 °C / 108 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 29.1 °C / 84 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 37.5 °C / 99.5 F.
(-) The average temperature of the palmrest area of similar devices was 28 °C / 82.4 F (-9.5 °C / -17.1 F).
Power Consumption
| Off / Standby |   0 / 0.4 Watt |
| Idle |  2 / 6 / 6.6 Watt |
| Load |
17.6 / 29.7 Watt |
    
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Key:
min: ,
med: ,
max: Extech Power Analyzer 380803 | |
| Lenovo ThinkPad Helix 2 35 Wh | Microsoft Surface Pro 3 58 Wh | Dell Venue 11 Pro 7140 42 Wh | Lenovo ThinkPad Helix 70 Wh | |
|---|---|---|---|---|
| Battery Runtime | 1% | 16% | -10% | |
| Reader / Idle | 964 | 1096 14% | 777 -19% | 559 -42% |
| H.264 | 360 | |||
| WiFi | 396 | 504 27% | 562 42% | 438 11% |
| Load | 197 | 124 -37% | 244 24% | 200 2% |
联想最新推出的ThinkPad Helix 2延续了前代产品的平板笔记本整合型设备的理念。这让它难以避免地需要在硬件配置上做出让步，不过归功于新一代的处理器平台，它的整体表现有了很大改观。
节能的Core M-5Y71不仅在散热需求上让人惊喜（它仅需被动散热），同时它优秀的性能也可以满足所有办公和多媒体应用的需要。在功效上的提升对于电池续航来说也是一件好事，它仅凭内置的35Wh电池就可以轻松实现6小时的续航时间。搭配可选的Ultrabook Pro键盘底座它还可以更加持久，不过这会为它增加200欧元的成本（相比我们评测的非专业版键盘），不过相对的你可以得到一块附加电池，指点杆，和可旋转屏幕转轴。
说到这里我们不得不提它最大的问题所在：高昂的售价。我们的测试机型目前售价高达1400欧元，尽管它的部件十分优秀（8GB内存，256GB固态硬盘，LTE模组），性价比仍然不佳。再加上它的机身稳定性和工艺质量很难达到联想声称的“高端”水准，它的售价就让人更难以接受了。不过至少它一如既往的出色ThinkPad键盘可以多少弥补一些缺憾。
最后，我们来看一看它的竞争对手们：潜在的Helix 2消费者可能也会考虑以前提到过的戴尔Venue 11 Pro，和微软Surface Pro 3。戴尔的这款设备在性价比上表现出色，而Surface则或许可以通过做工精良的机身来吸引一些Helix的潜在用户。
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。
