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东芝 Portege Z20t-B 变形本简短评测

昂贵续航旗舰。 东芝为他们的最新商务变形本的最高配置定价高达2000欧元(约13864人民币)——相对地,用户可以得到一台功能全面而电池续航超长的商务设备。由于采用了抗反射触控屏幕,Portege Z20t也可以在户外使用。
Broadwell Business Convertible / 2-in-1 Laptop / Notebook Touchscreen Ultrabook Windows Tablet
PT15BE-00E00FGR (Portege Z20 Series)
Processor
Intel Core M-5Y71 2 x 1.2 - 2.9 GHz, Broadwell
Graphics adapter
Intel HD Graphics 5300, Core: 900 MHz, RAM: 800 MHz, 双通道内存, 10.18.10.3977
Memory
8 GB 
, 双通道 LPDDR3-1600, 板载, 无法扩展
Display
12.50 inch 16:9, 1920 x 1080 pixel, 电容式(10点触控) + 手写笔, native pen support, Toshiba TOS508F, IPS-面板, LED-背光, glossy: no, detachable screen
Mainboard
Intel Broadwell-Y PCH-LP (Premium)
Storage
Toshiba HG6 THNSNJ256GVNU, 256 GB 
, 198 GB free
Soundcard
Intel Broadwell PCH-LP - High Definition Audio Controller
Connections
1 USB 2.0, 2 USB 3.0 / 3.1 Gen1, 1 VGA, 1 HDMI, 1 Kensington Lock, 1 Docking Station Port, Audio Connections: 3.5毫米整合立体声耳机接口, Card Reader: MicroSD, Brightness Sensor, Sensors: 3D加速传感器,环境光传感器,陀螺仪, VGA, RJ45 Ethernet
Networking
Intel I218-LM Gigabit (10/100/1000MBit/s), Intel Dual Band Wireless-AC 7265 (a/b/g/h/n = Wi-Fi 4/ac = Wi-Fi 5/), Bluetooth 4.0, Sierra Wireless EM7305 Mobile Broadband 3G/LTE (4G), LTE
Size
height x width x depth (in mm): 21 x 309 x 215
Battery
72 Wh Lithium-Polymer, 36 Wh (平板) + 36 Wh (底座)
Operating System
Microsoft Windows 8.1 Pro 64 Bit
Camera
Webcam: 200万像素 (前置) + 500万像素 (后置)
Primary Camera: 5 MPix
Secondary Camera: 2 MPix
Additional features
Speakers: 立体声, Keyboard: 孤岛式, Keyboard Light: yes, 2x 手写笔 + 3个备用笔尖, 45瓦电源适配器, 说明书, Toshiba System Settings, Toshiba Tempro, Eco Utility, 12 Months Warranty, fanless
Weight
1.493 kg, Power Supply: 150 g
Price
2000 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

310
cd/m²
331
cd/m²
301
cd/m²
314
cd/m²
342
cd/m²
292
cd/m²
282
cd/m²
279
cd/m²
260
cd/m²
Distribution of brightness
Toshiba TOS508F tested with X-Rite i1Pro 2
Maximum: 342 cd/m² (Nits) Average: 301.2 cd/m²
Brightness Distribution: 76 %
Center on Battery: 341 cd/m²
Contrast: 870:1 (Black: 0.393 cd/m²)
ΔE Color 9.69 | 0.5-29.43 Ø4.92
ΔE Greyscale 9.27 | 0.5-98 Ø5.2
40.4% AdobeRGB 1998 (Argyll 1.6.3 3D)
44.1% AdobeRGB 1998 (Argyll 2.2.0 3D)
63.6% sRGB (Argyll 2.2.0 3D)
42.63% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.95
Toshiba Portege Z20t-B-10C
1.920 x 1.080; IPS-Panel
Lenovo ThinkPad Helix 2
1.920 x 1.080; IPS-Panel
Microsoft Surface Pro 3
2.160 x 1.440; IPS-Panel
Dell Venue 11 Pro 7140
1.920 x 1.080; IPS-Panel
Display
46%
Display P3 Coverage
42.63
63.6
49%
sRGB Coverage
63.6
88.8
40%
AdobeRGB 1998 Coverage
44.1
65.6
49%
Screen
29%
26%
22%
Brightness middle
342
365
7%
355.3
4%
386
13%
Brightness
301
342
14%
338
12%
357
19%
Brightness Distribution
76
86
13%
91
20%
84
11%
Black Level *
0.393
0.329
16%
0.33
16%
0.4
-2%
Contrast
870
1109
27%
1077
24%
965
11%
Colorchecker dE 2000 *
9.69
4.37
55%
4.72
51%
3.71
62%
Greyscale dE 2000 *
9.27
2.8
70%
6.53
30%
5.4
42%
Gamma
2.95 75%
2.3 96%
2.17 101%
2.33 94%
CCT
6010 108%
6595 99%
6707 97%
6666 98%
Color Space (Percent of AdobeRGB 1998)
40.4
59.37
47%
Total Average (Program / Settings)
29% / 29%
36% / 31%
22% / 22%

* ... smaller is better

Cinebench R11.5
CPU Single 64Bit (sort by value)
Toshiba Portege Z20t-B-10C
Intel Core M-5Y71
1.15 Points
Lenovo ThinkPad Helix 2
Intel Core M-5Y71
1.13 Points -2%
Microsoft Surface Pro 3
Intel Core i5-4300U
1.12 Points -3%
Dell Venue 11 Pro 7140
Intel Core M-5Y10a
0.94 Points -18%
Toshiba Portege Z10t-A2111
Intel Core i7-4610Y
1.24 Points +8%
CPU Multi 64Bit (sort by value)
Toshiba Portege Z20t-B-10C
Intel Core M-5Y71
2.14 Points
Lenovo ThinkPad Helix 2
Intel Core M-5Y71
2.04 Points -5%
Microsoft Surface Pro 3
Intel Core i5-4300U
2.77 Points +29%
Dell Venue 11 Pro 7140
Intel Core M-5Y10a
2.01 Points -6%
Toshiba Portege Z10t-A2111
Intel Core i7-4610Y
2.15 Points 0%
Cinebench R15
CPU Single 64Bit (sort by value)
Toshiba Portege Z20t-B-10C
Intel Core M-5Y71
97 Points
Lenovo ThinkPad Helix 2
Intel Core M-5Y71
95 Points -2%
Dell Venue 11 Pro 7140
Intel Core M-5Y10a
83 Points -14%
Toshiba Portege Z10t-A2111
Intel Core i7-4610Y
107 Points +10%
CPU Multi 64Bit (sort by value)
Toshiba Portege Z20t-B-10C
Intel Core M-5Y71
190 Points
Lenovo ThinkPad Helix 2
Intel Core M-5Y71
184 Points -3%
Dell Venue 11 Pro 7140
Intel Core M-5Y10a
190 Points 0%
Toshiba Portege Z10t-A2111
Intel Core i7-4610Y
192 Points +1%
X264 HD Benchmark 4.0
Pass 1 (sort by value)
Toshiba Portege Z20t-B-10C
Intel Core M-5Y71
85.1 fps
Lenovo ThinkPad Helix 2
Intel Core M-5Y71
91.2 fps +7%
Microsoft Surface Pro 3
Intel Core i5-4300U
75.5 fps -11%
Toshiba Portege Z10t-A2111
Intel Core i7-4610Y
72.5 fps -15%
Pass 2 (sort by value)
Toshiba Portege Z20t-B-10C
Intel Core M-5Y71
11.47 fps
Lenovo ThinkPad Helix 2
Intel Core M-5Y71
11.13 fps -3%
Microsoft Surface Pro 3
Intel Core i5-4300U
13.47 fps +17%
Toshiba Portege Z10t-A2111
Intel Core i7-4610Y
12.38 fps +8%
Cinebench R10 Shading 32Bit
4680
Cinebench R10 Rendering Multiple CPUs 32Bit
6606
Cinebench R10 Rendering Single 32Bit
3810
Cinebench R10 Shading 64Bit
3681 Points
Cinebench R10 Rendering Multiple CPUs 64Bit
8486 Points
Cinebench R10 Rendering Single CPUs 64Bit
5068 Points
Cinebench R11.5 CPU Single 64Bit
1.15 Points
Cinebench R11.5 OpenGL 64Bit
17.84 fps
Cinebench R11.5 CPU Multi 64Bit
2.14 Points
Cinebench R15 Ref. Match 64Bit
98 %
Cinebench R15 OpenGL 64Bit
20.74 fps
Cinebench R15 CPU Multi 64Bit
190 Points
Cinebench R15 CPU Single 64Bit
97 Points
Help
Toshiba HG6 THNSNJ256GVNU
Transfer Rate Minimum: 253.3 MB/s
Transfer Rate Maximum: 413.9 MB/s
Transfer Rate Average: 334.2 MB/s
Access Time: 0.1 ms
Burst Rate: 200.4 MB/s
CPU Usage: 2.5 %
PCMark 7 - Score (sort by value)
Toshiba Portege Z20t-B-10C
HD Graphics 5300, 5Y71, Toshiba HG6 THNSNJ256GVNU
4421 Points
Lenovo ThinkPad Helix 2
HD Graphics 5300, 5Y71, Toshiba THNSFJ256GDNU 256 GB
4602 Points +4%
Microsoft Surface Pro 3
HD Graphics 4400, 4300U, Hynix HFS128G3MNM
5066 Points +15%
Dell Venue 11 Pro 7140
HD Graphics 5300, 5Y10a, Sandisk X110 M.2 SD6SP1M-128G
4135 Points -6%
Toshiba Portege Z10t-A2111
HD Graphics 4200, 4610Y, Samsung PM851 Series MZMTE256HMHP
4973 Points +12%
PCMark 8
Home Score Accelerated v2 (sort by value)
Toshiba Portege Z20t-B-10C
HD Graphics 5300, 5Y71, Toshiba HG6 THNSNJ256GVNU
2816 Points
Lenovo ThinkPad Helix 2
HD Graphics 5300, 5Y71, Toshiba THNSFJ256GDNU 256 GB
2690 Points -4%
Dell Venue 11 Pro 7140
HD Graphics 5300, 5Y10a, Sandisk X110 M.2 SD6SP1M-128G
2480 Points -12%
Toshiba Portege Z10t-A2111
HD Graphics 4200, 4610Y, Samsung PM851 Series MZMTE256HMHP
2282 Points -19%
Work Score Accelerated v2 (sort by value)
Toshiba Portege Z20t-B-10C
HD Graphics 5300, 5Y71, Toshiba HG6 THNSNJ256GVNU
3936 Points
Lenovo ThinkPad Helix 2
HD Graphics 5300, 5Y71, Toshiba THNSFJ256GDNU 256 GB
3806 Points -3%
Dell Venue 11 Pro 7140
HD Graphics 5300, 5Y10a, Sandisk X110 M.2 SD6SP1M-128G
3291 Points -16%
Toshiba Portege Z10t-A2111
HD Graphics 4200, 4610Y, Samsung PM851 Series MZMTE256HMHP
3441 Points -13%
Creative Score Accelerated v2 (sort by value)
Toshiba Portege Z20t-B-10C
HD Graphics 5300, 5Y71, Toshiba HG6 THNSNJ256GVNU
3263 Points
Lenovo ThinkPad Helix 2
HD Graphics 5300, 5Y71, Toshiba THNSFJ256GDNU 256 GB
3090 Points -5%
Toshiba Portege Z10t-A2111
HD Graphics 4200, 4610Y, Samsung PM851 Series MZMTE256HMHP
2400 Points -26%
PCMark 7 Score
4421 points
PCMark 8 Home Score Accelerated v2
2816 points
PCMark 8 Creative Score Accelerated v2
3263 points
PCMark 8 Work Score Accelerated v2
3936 points
Help
3DMark 11 - 1280x720 Performance (sort by value)
Toshiba Portege Z20t-B-10C
Intel Core M-5Y71, Intel HD Graphics 5300
775 Points
Lenovo ThinkPad Helix 2
Intel Core M-5Y71, Intel HD Graphics 5300
753 Points -3%
Microsoft Surface Pro 3
Intel Core i5-4300U, Intel HD Graphics 4400
877 Points +13%
Dell Venue 11 Pro 7140
Intel Core M-5Y10a, Intel HD Graphics 5300
883 Points +14%
Toshiba Portege Z10t-A2111
Intel Core i7-4610Y, Intel HD Graphics 4200
784 Points +1%
Lenovo ThinkPad T450s-20BWS03F00
Intel Core i7-5600U, Intel HD Graphics 5500
1251 Points +61%
3DMark
1280x720 Ice Storm Standard Score (sort by value)
Toshiba Portege Z20t-B-10C
Intel Core M-5Y71, Intel HD Graphics 5300
35835 Points
Lenovo ThinkPad Helix 2
Intel Core M-5Y71, Intel HD Graphics 5300
35119 Points -2%
Microsoft Surface Pro 3
Intel Core i5-4300U, Intel HD Graphics 4400
29229 Points -18%
Dell Venue 11 Pro 7140
Intel Core M-5Y10a, Intel HD Graphics 5300
38912 Points +9%
Toshiba Portege Z10t-A2111
Intel Core i7-4610Y, Intel HD Graphics 4200
32971 Points -8%
Lenovo ThinkPad T450s-20BWS03F00
Intel Core i7-5600U, Intel HD Graphics 5500
55793 Points +56%
1280x720 Cloud Gate Standard Score (sort by value)
Toshiba Portege Z20t-B-10C
Intel Core M-5Y71, Intel HD Graphics 5300
3585 Points
Lenovo ThinkPad Helix 2
Intel Core M-5Y71, Intel HD Graphics 5300
3522 Points -2%
Microsoft Surface Pro 3
Intel Core i5-4300U, Intel HD Graphics 4400
4146 Points +16%
Dell Venue 11 Pro 7140
Intel Core M-5Y10a, Intel HD Graphics 5300
3484 Points -3%
Toshiba Portege Z10t-A2111
Intel Core i7-4610Y, Intel HD Graphics 4200
3754 Points +5%
Lenovo ThinkPad T450s-20BWS03F00
Intel Core i7-5600U, Intel HD Graphics 5500
5782 Points +61%
1920x1080 Fire Strike Score (sort by value)
Toshiba Portege Z20t-B-10C
Intel Core M-5Y71, Intel HD Graphics 5300
453 Points
Lenovo ThinkPad Helix 2
Intel Core M-5Y71, Intel HD Graphics 5300
450 Points -1%
Microsoft Surface Pro 3
Intel Core i5-4300U, Intel HD Graphics 4400
483 Points +7%
Dell Venue 11 Pro 7140
Intel Core M-5Y10a, Intel HD Graphics 5300
466 Points +3%
Toshiba Portege Z10t-A2111
Intel Core i7-4610Y, Intel HD Graphics 4200
495 Points +9%
Lenovo ThinkPad T450s-20BWS03F00
Intel Core i7-5600U, Intel HD Graphics 5500
753 Points +66%
3DMark 06 Standard Score
5273 points
3DMark 11 Performance
775 points
3DMark Ice Storm Standard Score
35835 points
3DMark Cloud Gate Standard Score
3585 points
3DMark Fire Strike Score
453 points
Help
lowmed.highultra
Tomb Raider (2013) 40.3 20.5 13.5
Alien: Isolation (2014) 23.9 15.9 8.5
F1 2014 (2014) 39 25 14
 23.3 °C25.7 °C27.4 °C 
 23.9 °C26.2 °C28.8 °C 
 26 °C28.9 °C28 °C 
Maximum: 28.9 °C
Average: 26.5 °C
26.9 °C25.7 °C23.9 °C
27.7 °C25.9 °C24.2 °C
26.9 °C26 °C25.3 °C
Maximum: 27.7 °C
Average: 25.8 °C
Power Supply (max.)  31.3 °C | Room Temperature 20.1 °C | Fluke 62 Max
(±) The average temperature for the upper side under maximal load is 35.2 °C / 95 F, compared to the average of 30.2 °C / 86 F for the devices in the class Convertible.
(-) The maximum temperature on the upper side is 48.3 °C / 119 F, compared to the average of 35.3 °C / 96 F, ranging from 19.6 to 55.7 °C for the class Convertible.
(±) The bottom heats up to a maximum of 43.2 °C / 110 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 26.5 °C / 80 F, compared to the device average of 30.2 °C / 86 F.
(-) The palmrests and touchpad can get very hot to the touch with a maximum of 43 °C / 109.4 F.
(-) The average temperature of the palmrest area of similar devices was 28.1 °C / 82.6 F (-14.9 °C / -26.8 F).
Power Consumption
Off / Standbydarklight 0 / 0.1 Watt
Idledarkmidlight 2.4 / 4.6 / 5.6 Watt
Load midlight 15.6 / 30.7 Watt
 color bar
Key: min: dark, med: mid, max: light        Extech Power Analyzer 380803
Toshiba Portege Z20t-B-10C
72 Wh
Lenovo ThinkPad Helix 2
35 Wh
Microsoft Surface Pro 3
42 Wh
Dell Venue 11 Pro 7140
38 Wh
Battery Runtime
-46%
-48%
-41%
Reader / Idle
1616
964
-40%
1096
-32%
777
-52%
H.264
787
360
-54%
WiFi v1.3
760
Load
348
197
-43%
124
-64%
244
-30%
WiFi
396
504
562
Battery Runtime
Idle (without WLAN, min brightness)
26h 56min
WiFi Websurfing
12h 40min
Big Buck Bunny H.264 1080p
13h 07min
Load (maximum brightness)
5h 48min

Pros

+ 考究的机身工艺
+ 高品质输入设备
+ 支持手写笔
+ 防反射IPS屏幕,显示效果无可挑剔
+ 非常优秀的日常使用性能
+ 被动散热
+ 出色的电池续航时间

Cons

- 仅12个月质保
- 无升级空间
- 无指纹识别器
- 价格昂贵
Toshiba Portege Z20t
Toshiba Portege Z20t

现代变形本变得越来越轻便而强劲,给我们带来了很多的惊喜——一台采用被动散热Core-M处理器的设备在日常情况下几乎不会比台式电脑慢。不过除东芝以外,联想或戴尔等竞争对手也为他们的设备采用了同样的硬件平台。那么如果你可以用更少的钱买到ThinkPad Helix 2或Venue 11 Pro的话,Portege Z20t会有什么让你值得付出近2000欧元(约13864人民币)的优势呢?在它们之间我们必须保持公正,东芝随机附带了很多配件,对于其他机型来说这些配件则需要单独购买。除了两根手写笔和集成的LTE模组,我们还必须提到它附带第二块电池的键盘底座,这为它的超长续航提供了动力。这台Portege的磨砂屏幕也是另外一个独特之处,在户外使用时会有很大的帮助。这台二合一笔记本的质量毫无问题:它的机身工艺非常优秀,而输入设备也可以适合经常打字的用户。

整体上,Portege Z20t是一台非常适合预算充足、需要全面而高便携性办公设备的商务用户选择。个人用户可以找到与之功能相近而售价更低的其他产品。

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 

Toshiba Portege Z20t-B-10C - 04/18/2016 v5.1 (old)
Till Schönborn

Chassis
82 / 98 → 83%
Keyboard
84%
Pointing Device
93%
Connectivity
69 / 80 → 86%
Weight
69 / 35-78 → 79%
Battery
95%
Display
84%
Games Performance
53 / 68 → 78%
Application Performance
73 / 87 → 84%
Temperature
88%
Noise
100%
Audio
44 / 91 → 48%
Camera
61 / 85 → 71%
Average
76%
85%
Convertible - Weighted Average

Price comparison

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> Notebookcheck中文版(NBC中国) > 评测 > 东芝 Portege Z20t-B 变形本简短评测
Till Schönborn, 2015-05- 3 (Update: 2024-11- 4)