Dynabook Tecra A40的回顾。办公室里的悄悄话...
自从几年前东芝将其笔记本电脑部门卖给夏普后，以前的东芝笔记本电脑再次被称为 "Dynabook"，这是对东芝早期笔记本电脑品牌名称的致敬。就像1970年代一样，目前的Dynabook设备应该特别注重用户友好性，主要针对商业客户。Tecra设备是具有中档设备的设备，制造商将其列在商务高级下。我们的14英寸测试设备的名称为A40-J-12E，配备了英特尔第11代i5处理器，8GB内存和256GB固态硬盘。此外，目前还有配置变体，工作内存高达16GB，英特尔第11代i7处理器，512GB硬盘内存和通过4G网络的通信选项。
Possible competitors in comparison
Rating | Date | Model | Weight | Height | Size | Resolution | Price |
|---|---|---|---|---|---|---|---|
| 84.4 % v7 (old) | 10 / 2021 | Dynabook Tecra A40-J-12E i5-1135G7, Iris Xe G7 80EUs | 1.4 kg | 18.9 mm | 14.00" | 1920x1080 | |
| 86.4 % v7 (old) | Fujitsu LifeBook U7311 i5 i5-1135G7, Iris Xe G7 80EUs | 1.2 kg | 19 mm | 13.30" | 1920x1080 | ||
| 84.9 % v7 (old) | 05 / 2021 | Honor Magicbook 14 i7-1165G7 i7-1165G7, Iris Xe G7 96EUs | 1.4 kg | 15.9 mm | 14.00" | 1920x1080 | |
| 86.1 % v7 (old) | 08 / 2021 | Lenovo ThinkPad L14 G2 AMD R7 PRO 5850U, Vega 8 | 1.7 kg | 20.4 mm | 14.00" | 1920x1080 |
箱子--稳重的笔记本，庄重的设计
Dynabook Tecra A40的特点是设计简单。黑灰色的塑料外壳相当结实，没有显示出任何工艺上的弱点。只有盖子上的大型铬合金品牌在设备上起到了吸引眼球的作用。屏幕铰链相当坚硬，因此几乎不可能用一只手打开这台商务笔记本电脑，但它可以保持在原位。
设备 - 两次Thunderbolt 4确保良好的连接性
两个Thunderbolt 4 USB Type-C端口，也支持PowerDelivery，允许笔记本电脑按所需端口扩展。设备本身的其他连接对于目前的办公笔记本来说是很正常的。除了有点慢的microSD读卡器，所有端口都是最先进的。笔记本电脑的WLAN连接速度很快，而90万像素的网络摄像头的图像质量很低，很一般。积极的一面是，网络摄像头有一个机械快门，可以用来保护用户免受不受欢迎的注视。这块小金属板以磁力粘附在外壳上，可以在镜头上滑动。
| SD Card Reader | |
| average JPG Copy Test (av. of 3 runs) | |
| Lenovo ThinkPad L14 G2 AMD (AV Pro V60) | |
| Dynabook Tecra A40-J-12E (AV Pro v60) | |
| Average of class Office (22.7 - 198.5, n=35, last 2 years) | |
| Fujitsu LifeBook U7311 i5 (AV Pro V60) | |
| maximum AS SSD Seq Read Test (1GB) | |
| Lenovo ThinkPad L14 G2 AMD (AV Pro V60) | |
| Dynabook Tecra A40-J-12E (AV Pro v60) | |
| Average of class Office (25 - 249, n=31, last 2 years) | |
| Fujitsu LifeBook U7311 i5 (AV Pro V60) | |
| Networking | |
| iperf3 transmit AX12 | |
| Honor Magicbook 14 i7-1165G7 | |
| Dynabook Tecra A40-J-12E | |
| Average Intel Wi-Fi 6 AX201 (49.8 - 1775, n=324) | |
| Fujitsu LifeBook U7311 i5 | |
| Lenovo ThinkPad L14 G2 AMD | |
| iperf3 receive AX12 | |
| Dynabook Tecra A40-J-12E | |
| Fujitsu LifeBook U7311 i5 | |
| Average Intel Wi-Fi 6 AX201 (136 - 1743, n=324) | |
| Honor Magicbook 14 i7-1165G7 | |
| Lenovo ThinkPad L14 G2 AMD | |
维护
用十字螺丝刀和吸盘可以很容易地取下笔记本底座的盖子。在下面，可以看到笔记本电脑可以通过另一个工作内存条进行扩展，而且WLAN模块和SSD是可以更换的。
安全问题
Dynabook Tecra A40的英特尔酷睿i5-1135G7为该设备提供了所有最新的安全功能，如TPM 2.0和SecureBoot。因此，该电脑已经为Windows 11做好了准备。预装的Windows 10的更新中心已经为电脑提供了相应的更新。右侧的电缆锁端口确保硬件安全。
输入设备 - 安静的键盘，打字的感觉很舒服
Dynabook Tecra A40的键盘有很好的触觉反馈，按键尺寸合理，约为15×15毫米。1.5毫米的按键落差也相当舒适。通过功能键的激活，虚拟数字键盘为输入长排数字提供了良好的可能性。键盘的背光灯具有对眼睛友好的亮度，可以通过Dynabook设置应用程序调整为三个级别。10×7厘米（约3.9×2.8厘米）的多点触控点击板显得有点小，但它能准确地工作。
显示屏 - Tecra采用深色全高清面板
Dynabook的全高清IPS显示屏凭借其哑光表面提供了1114:1的良好对比度。虽然它是一块IPS显示屏，但它只是一块非常廉价的显示屏，因为屏幕在色彩还原或亮度方面无法跟上对比设备。平均为215.9cd/m²，亮度不是特别高。小小的sRGB色彩空间只覆盖了63%，即使经过校准（配置文件在右边的信息框中有链接），色彩偏差也太高了，所以该面板不适合编辑图片/视频。
主观的图片印象还可以，质量也足以应付正常的办公任务，尤其是在许多办公室里，笔记本电脑可能经常与外部显示器一起使用。我们无法确定PWM的闪烁，响应时间也很平均。
| |||||||||||||||||||||||||
Brightness Distribution: 84 %
Center on Battery: 233 cd/m²
Contrast: 1114:1 (Black: 0.21 cd/m²)
ΔE Color 5.6 | 0.5-29.43 Ø4.91, calibrated: 4.6
ΔE Greyscale 5.1 | 0.5-98 Ø5.2
43.8% AdobeRGB 1998 (Argyll 2.2.0 3D)
63% sRGB (Argyll 2.2.0 3D)
42.3% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.24
| Dynabook Tecra A40-J-12E N140HCA-EAC, , 1920x1080, 14" | Fujitsu LifeBook U7311 i5 BOE NV133FHM-T03, IPS, 1920x1080, 13.3" | Honor Magicbook 14 i7-1165G7 BOE092E, IPS, 1920x1080, 14" | Lenovo ThinkPad L14 G2 AMD B140HAN04.0, IPS LED, 1920x1080, 14" | |
|---|---|---|---|---|
| Display | 54% | 52% | -11% | |
| Display P3 Coverage | 42.3 | 70.1 66% | 64.8 53% | 37.5 -11% |
| sRGB Coverage | 63 | 91.1 45% | 96.3 53% | 56.3 -11% |
| AdobeRGB 1998 Coverage | 43.8 | 66.6 52% | 66.1 51% | 38.7 -12% |
| Response Times | -14% | 31% | 15% | |
| Response Time Grey 50% / Grey 80% * | 41.2 ? | 50.8 ? -23% | 31.2 ? 24% | 36 ? 13% |
| Response Time Black / White * | 31.2 ? | 32.4 ? -4% | 19.2 ? 38% | 26 ? 17% |
| PWM Frequency | 210.1 ? | |||
| Screen | 11% | 37% | -3% | |
| Brightness middle | 234 | 324 38% | 341 46% | 278 19% |
| Brightness | 216 | 301 39% | 313 45% | 255 18% |
| Brightness Distribution | 84 | 87 4% | 87 4% | 86 2% |
| Black Level * | 0.21 | 0.28 -33% | 0.27 -29% | 0.33 -57% |
| Contrast | 1114 | 1157 4% | 1263 13% | 842 -24% |
| Colorchecker dE 2000 * | 5.6 | 5.8 -4% | 1.76 69% | 5.9 -5% |
| Colorchecker dE 2000 max. * | 20.3 | 11.4 44% | 4.85 76% | 20.2 -0% |
| Colorchecker dE 2000 calibrated * | 4.6 | 2.6 43% | 1.01 78% | 4.5 2% |
| Greyscale dE 2000 * | 5.1 | 6.8 -33% | 3.3 35% | 4.1 20% |
| Gamma | 2.24 98% | 2.14 103% | 2.26 97% | 2.15 102% |
| CCT | 6542 99% | 7210 90% | 7233 90% | 7224 90% |
| Color Space (Percent of AdobeRGB 1998) | 66 | |||
| Color Space (Percent of sRGB) | 89 | |||
| Total Average (Program / Settings) | 17% /
17% | 40% /
40% | 0% /
-2% |
* ... smaller is better
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 31.2 ms ... rise ↗ and fall ↘ combined | ↗ 18 ms rise |  |
| ↘ 13.2 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. » 83 % 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 | ||
| 41.2 ms ... rise ↗ and fall ↘ combined | ↗ 21.2 ms rise |  |
| ↘ 20 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. » 63 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.8 ms). | ||
Screen Flickering / PWM (Pulse-Width Modulation)
| 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 8710 (minimum: 5 - maximum: 343500) Hz was measured. | |||
在户外使用时，明亮的秋日阳光几乎不会干扰到哑光显示屏的可读性，尽管更亮的面板当然是有利的。Tecra A40的面板也只在更清晰的视角下的感知亮度中显示出其视角稳定性的小缺点。
性能 - 英特尔酷睿i5令人惊讶
Dynabook Tecra A40-J-12E配备了8GB工作内存和 英特尔酷睿i5-1135G7是装备良好的办公应用，如文字处理和电子表格。然而，这款笔记本电脑在数据库管理领域的大型应用中缺乏工作内存。集成英特尔Iris Xe图形G7的80EUs足以满足许多3D应用，但在更雄心勃勃的CAD项目中，图形已经达到极限。
处理器
通过英特尔酷睿i5-1135G7，Dynabook依靠的是一个带有集成GPU的节能4核。该处理器以2.4GHz左右的基本时钟运行，并能在短时间内提供高达4.2GHz的频率。在Cinebench循环中，该计算核心显示了恒定的性能。由于TDP较高，i5在这里甚至可以与许多i7型号竞争。将基准测试与采用相同处理器的富士通LifeBook进行比较，可以发现明显的差异。显然，Dynabook已经考虑到了用双风扇对处理器进行冷却，因此，Core i5可以很好地展示其性能潜力。
Cinebench R15 Multi Endurance test
Cinebench R20: CPU (Multi Core) | CPU (Single Core)
Cinebench R15: CPU Multi 64Bit | CPU Single 64Bit
Blender: v2.79 BMW27 CPU
7-Zip 18.03: 7z b 4 | 7z b 4 -mmt1
Geekbench 5.5: Multi-Core | Single-Core
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
| Cinebench R23 / Multi Core | |
| Average of class Office (1577 - 15743, n=92, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Dynabook Tecra A40-J-12E | |
| Average Intel Core i5-1135G7 (2786 - 6136, n=55) | |
| Fujitsu LifeBook U7311 i5 | |
| Cinebench R23 / Single Core | |
| Average of class Office (618 - 1995, n=92, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Dynabook Tecra A40-J-12E | |
| Fujitsu LifeBook U7311 i5 | |
| Average Intel Core i5-1135G7 (1062 - 1373, n=53) | |
| Cinebench R20 / CPU (Multi Core) | |
| Average of class Office (590 - 5980, n=91, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Honor Magicbook 14 i7-1165G7 | |
| Dynabook Tecra A40-J-12E | |
| Average Intel Core i5-1135G7 (979 - 2382, n=62) | |
| Fujitsu LifeBook U7311 i5 | |
| Cinebench R20 / CPU (Single Core) | |
| Average of class Office (229 - 766, n=91, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Lenovo ThinkPad L14 G2 AMD | |
| Dynabook Tecra A40-J-12E | |
| Fujitsu LifeBook U7311 i5 | |
| Average Intel Core i5-1135G7 (375 - 527, n=62) | |
| Cinebench R15 / CPU Multi 64Bit | |
| Average of class Office (246 - 2642, n=94, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Dynabook Tecra A40-J-12E | |
| Honor Magicbook 14 i7-1165G7 | |
| Average Intel Core i5-1135G7 (431 - 941, n=65) | |
| Fujitsu LifeBook U7311 i5 | |
| Cinebench R15 / CPU Single 64Bit | |
| Average of class Office (98 - 284, n=93, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Lenovo ThinkPad L14 G2 AMD | |
| Dynabook Tecra A40-J-12E | |
| Fujitsu LifeBook U7311 i5 | |
| Average Intel Core i5-1135G7 (141.4 - 205, n=61) | |
| Blender / v2.79 BMW27 CPU | |
| Fujitsu LifeBook U7311 i5 | |
| Average Intel Core i5-1135G7 (499 - 1044, n=60) | |
| Dynabook Tecra A40-J-12E | |
| Honor Magicbook 14 i7-1165G7 | |
| Average of class Office (208 - 1956, n=93, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| 7-Zip 18.03 / 7z b 4 | |
| Average of class Office (7532 - 65460, n=94, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Honor Magicbook 14 i7-1165G7 | |
| Dynabook Tecra A40-J-12E | |
| Average Intel Core i5-1135G7 (14745 - 24873, n=62) | |
| Fujitsu LifeBook U7311 i5 | |
| 7-Zip 18.03 / 7z b 4 -mmt1 | |
| Honor Magicbook 14 i7-1165G7 | |
| Average of class Office (2972 - 6687, n=93, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Dynabook Tecra A40-J-12E | |
| Average Intel Core i5-1135G7 (3924 - 4921, n=62) | |
| Fujitsu LifeBook U7311 i5 | |
| Geekbench 5.5 / Multi-Core | |
| Average of class Office (1018 - 11980, n=93, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Honor Magicbook 14 i7-1165G7 | |
| Average Intel Core i5-1135G7 (3475 - 5472, n=58) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| Geekbench 5.5 / Single-Core | |
| Average of class Office (510 - 1995, n=94, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Fujitsu LifeBook U7311 i5 | |
| Average Intel Core i5-1135G7 (1147 - 1428, n=58) | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| HWBOT x265 Benchmark v2.2 / 4k Preset | |
| Average of class Office (1.72 - 18.7, n=91, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Honor Magicbook 14 i7-1165G7 | |
| Dynabook Tecra A40-J-12E | |
| Average Intel Core i5-1135G7 (3.57 - 7.6, n=57) | |
| Fujitsu LifeBook U7311 i5 | |
| LibreOffice / 20 Documents To PDF | |
| Dynabook Tecra A40-J-12E | |
| Fujitsu LifeBook U7311 i5 | |
| Average of class Office (31.3 - 129.6, n=91, last 2 years) | |
| Average Intel Core i5-1135G7 (44.2 - 62.9, n=60) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Honor Magicbook 14 i7-1165G7 | |
| R Benchmark 2.5 / Overall mean | |
| Fujitsu LifeBook U7311 i5 | |
| Average Intel Core i5-1135G7 (0.619 - 0.727, n=59) | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| Honor Magicbook 14 i7-1165G7 | |
| Average of class Office (0.4244 - 1.135, n=90, last 2 years) | |
* ... smaller is better
在电池模式下，处理器可用的电能下降了约10瓦。因此，在Cinebench R23测试中取得的分数下降到4258分；下降了约23%。
系统性能
Dynabook Tecra A40在PCMark 10基准测试中的结果并不像处理器基准测试的强劲结果所显示的那样好。这里有两个因素在起作用。一个是工作内存的小尺寸。比较中的其他设备都有16GB的工作内存。这反映在分项分数Essentials和Productivity上。此外，安装的固态硬盘的性能有点低于平均水平。
但基准测试结果并不是一切。这台笔记本电脑运行平稳，没有恼人的掉线现象。除内存密集型游戏外，整个应用程序启动很快。
| PCMark 10 / Score | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average of class Office (2463 - 7344, n=85, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (4026 - 4952, n=53) | |
| Dynabook Tecra A40-J-12E | |
| Fujitsu LifeBook U7311 i5 | |
| PCMark 10 / Essentials | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average of class Office (5575 - 20841, n=85, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (8149 - 9917, n=53) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| PCMark 10 / Productivity | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average of class Office (3041 - 10415, n=85, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (5040 - 6619, n=53) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| PCMark 10 / Digital Content Creation | |
| Average of class Office (2049 - 9773, n=85, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Honor Magicbook 14 i7-1165G7 | |
| Dynabook Tecra A40-J-12E | |
| Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (3548 - 5255, n=53) | |
| Fujitsu LifeBook U7311 i5 | |
| PCMark 10 Score | 4580 points | |
Help | ||
DPC延迟
在Dynabook A40中存在相当大的DPC延迟问题。然而，这里必须提到的是，这些问题可能会随着未来的软件更新而得到解决。微软的内核模式驱动程序（Wdf0100.sys）目前继续在许多设备中造成重大延迟。播放我们4k-60Hz的YouTube测试视频基本上没有问题，只有7个丢帧。
| DPC Latencies / LatencyMon - interrupt to process latency (max), Web, Youtube, Prime95 | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| Honor Magicbook 14 i7-1165G7 | |
* ... smaller is better
大容量存储
如前所述，Tecra A40中的Phison NVMe固态硬盘即使对于办公笔记本电脑来说也有点慢。特别是在许多小的写入过程中，传输率会崩溃。在这里，Dynabook也明显落后于竞争对手。固态硬盘的连接似乎有问题，因为Phison的硬盘在其他笔记本电脑上工作得更快，根据我们的 SSDs和HDD的基准表.然而，CristalDiskInfo报告说，固态硬盘是以最好的方式与系统的PCIe 3.0 4x连接的。
| Dynabook Tecra A40-J-12E Phison C-E80T512G4-P3D3B3E13 | Fujitsu LifeBook U7311 i5 Samsung PM991 MZVLQ512HALU | Honor Magicbook 14 i7-1165G7 WDC PC SN730 SDBPNTY-512G | Lenovo ThinkPad L14 G2 AMD WDC PC SN730 SDBQNTY-512GB | Average Phison C-E80T512G4-P3D3B3E13 | Average of class Office | |
|---|---|---|---|---|---|---|
| CrystalDiskMark 5.2 / 6 | 0% | 87% | 25% | 77% | ||
| Write 4K | 108.5 | 113.9 5% | 223.7 106% | 168.4 ? 55% | 161.6 ? 49% | |
| Read 4K | 44.51 | 48.34 9% | 51.2 15% | 52.6 ? 18% | 64.5 ? 45% | |
| Write Seq | 1212 | 1100 -9% | 2579 113% | 1554 ? 28% | 2670 ? 120% | |
| Read Seq | 1485 | 1575 6% | 2553 72% | 1529 ? 3% | 2906 ? 96% | |
| Write 4K Q32T1 | 263 | 306.3 16% | 671 155% | 370 ? 41% | 410 ? 56% | |
| Read 4K Q32T1 | 310.1 | 304.2 -2% | 761 145% | 451 ? 45% | 532 ? 72% | |
| Write Seq Q32T1 | 1757 | 1423 -19% | 2721 55% | 1947 ? 11% | 3402 ? 94% | |
| Read Seq Q32T1 | 2457 | 2374 -3% | 3358 37% | 2435 ? -1% | 4550 ? 85% | |
| AS SSD | 48% | 169% | 127% | 47% | 159% | |
| Seq Read | 1937 | 1915 -1% | 3021 56% | 2693 39% | 2036 ? 5% | 3509 ? 81% |
| Seq Write | 947 | 865 -9% | 2341 147% | 1456 54% | 1362 ? 44% | 2408 ? 154% |
| 4K Read | 36.65 | 47.01 28% | 47.9 31% | 41.67 14% | 32.8 ? -11% | 58.2 ? 59% |
| 4K Write | 126.1 | 139.7 11% | 186.7 48% | 138.4 10% | 137 ? 9% | 167.3 ? 33% |
| 4K-64 Read | 432.5 | 766 77% | 1472 240% | 940 117% | 572 ? 32% | 1064 ? 146% |
| 4K-64 Write | 313 | 779 149% | 1829 484% | 1933 518% | 478 ? 53% | 1637 ? 423% |
| Access Time Read * | 0.1 | 0.117 -17% | 0.06 40% | 0.114 -14% | 0.076 ? 24% | 0.07978 ? 20% |
| Access Time Write * | 0.175 | 0.027 85% | 0.021 88% | 0.027 85% | 0.1335 ? 24% | 0.07 ? 60% |
| Score Read | 663 | 1005 52% | 1822 175% | 1251 89% | 809 ? 22% | 1473 ? 122% |
| Score Write | 534 | 1005 88% | 2249 321% | 2217 315% | 751 ? 41% | 2045 ? 283% |
| Score Total | 1497 | 2483 66% | 4973 232% | 4052 171% | 1946 ? 30% | 4228 ? 182% |
| Copy ISO MB/s | 1218 | 1257 ? 3% | 1955 ? 61% | |||
| Copy Program MB/s | 188.1 | 544 ? 189% | 652 ? 247% | |||
| Copy Game MB/s | 319.2 | 954 ? 199% | 1430 ? 348% | |||
| Total Average (Program / Settings) | 24% /
28% | 128% /
135% | 127% /
127% | 36% /
39% | 118% /
129% |
* ... smaller is better
Continuous power reading: DiskSpd Read Loop, Queue Depth 8
图形卡
集成在i5 SoC中的性能，以及英特尔Iris Xe图形G7与80EUs，对于一个办公设备来说是足够的。工作内存的不足在3DMark和3DMark 11基准测试中再次显现出来。因此，Dynabook Tecra A40不得不承认败给了两款采用英特尔处理器的对比设备。
笔记本的图形性能在电池模式下也有所下降；3DMark 11的结果下降了大约1300分。
| 3DMark 11 - 1280x720 Performance GPU | |
| Average of class Office (1468 - 13132, n=88, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Fujitsu LifeBook U7311 i5 | |
| Average Intel Iris Xe Graphics G7 80EUs (2246 - 6477, n=109) | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| 3DMark | |
| 1920x1080 Fire Strike Graphics | |
| Average of class Office (736 - 9375, n=90, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Average Intel Iris Xe Graphics G7 80EUs (1560 - 5305, n=111) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| 1280x720 Cloud Gate Standard Graphics | |
| Average of class Office (7982 - 58068, n=62, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Average Intel Iris Xe Graphics G7 80EUs (6361 - 30894, n=95) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| 2560x1440 Time Spy Graphics | |
| Average of class Office (313 - 4109, n=89, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Average Intel Iris Xe Graphics G7 80EUs (561 - 1511, n=108) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| 3DMark 11 Performance | 4807 points | |
| 3DMark Cloud Gate Standard Score | 14217 points | |
| 3DMark Fire Strike Score | 2364 points | |
| 3DMark Time Spy Score | 1103 points | |
Help | ||
游戏性能
酷睿i5的内部图形芯片只在有限的范围内适用于3D应用。为了在较新的游戏中获得流畅的游戏体验，必须设置最低的质量和分辨率设置。在某些情况下，更高的图形设置甚至无法在F1系列的游戏中启动。然而，这款商务笔记本电脑的性能足以满足不要求的游戏休息。在比较领域，Dynabook笔记本在其他办公用笔记本电脑中并不突出。
Witcher 3 FPS-Diagram
| Final Fantasy XV Benchmark | |
| 1280x720 Lite Quality | |
| Average of class Office (12.1 - 103.1, n=88, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Average Intel Iris Xe Graphics G7 80EUs (8.32 - 45.6, n=104) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| 1920x1080 Standard Quality | |
| Average of class Office (5.8 - 51.7, n=88, last 2 years) | |
| Average Intel Iris Xe Graphics G7 80EUs (4.47 - 25.1, n=97) | |
| Honor Magicbook 14 i7-1165G7 | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| 1920x1080 High Quality | |
| Average of class Office (4.18 - 35.7, n=86, last 2 years) | |
| Dynabook Tecra A40-J-12E | |
| Average Intel Iris Xe Graphics G7 80EUs (4.01 - 22, n=88) | |
| Fujitsu LifeBook U7311 i5 | |
| Honor Magicbook 14 i7-1165G7 | |
| Lenovo ThinkPad L14 G2 AMD | |
| X-Plane 11.11 | |
| 1280x720 low (fps_test=1) | |
| Average of class Office (13.6 - 128.2, n=93, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Microsoft Surface Pro 7 Plus | |
| Average Intel Iris Xe Graphics G7 80EUs (9.12 - 74.4, n=109) | |
| Honor Magicbook 14 i7-1165G7 | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| 1920x1080 med (fps_test=2) | |
| Honor Magicbook 14 i7-1165G7 | |
| Average of class Office (10.1 - 115.3, n=90, last 2 years) | |
| Dynabook Tecra A40-J-12E | |
| Microsoft Surface Pro 7 Plus | |
| Fujitsu LifeBook U7311 i5 | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average Intel Iris Xe Graphics G7 80EUs (6.45 - 40.5, n=110) | |
| 1920x1080 high (fps_test=3) | |
| Honor Magicbook 14 i7-1165G7 | |
| Average of class Office (8.88 - 92.6, n=90, last 2 years) | |
| Dynabook Tecra A40-J-12E | |
| Microsoft Surface Pro 7 Plus | |
| Fujitsu LifeBook U7311 i5 | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average Intel Iris Xe Graphics G7 80EUs (5.55 - 36.3, n=108) | |
| Strange Brigade | |
| 1280x720 lowest AF:1 | |
| Average of class Office (37.7 - 175.7, n=77, last 2 years) | |
| Average Intel Iris Xe Graphics G7 80EUs (22.7 - 98.7, n=81) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| 1920x1080 medium AA:medium AF:4 | |
| Average of class Office (13.4 - 77.2, n=77, last 2 years) | |
| Average Intel Iris Xe Graphics G7 80EUs (6 - 48.8, n=83) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| 1920x1080 high AA:high AF:8 | |
| Average of class Office (10.8 - 64.5, n=77, last 2 years) | |
| Average Intel Iris Xe Graphics G7 80EUs (11.4 - 32.3, n=80) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| F1 2021 - 1280x720 Ultra Low Preset | |
| Average of class Office (73.1 - 197.8, n=13, last 2 years) | |
| Average Intel Iris Xe Graphics G7 80EUs (15.6 - 102, n=18) | |
| Dynabook Tecra A40-J-12E | |
| GTA V | |
| 1024x768 Lowest Settings possible | |
| Average of class Office (41.2 - 176.4, n=83, last 2 years) | |
| Average Intel Iris Xe Graphics G7 80EUs (36.5 - 144.6, n=81) | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| Lenovo ThinkPad L14 G2 AMD | |
| 1366x768 Normal/Off AF:4x | |
| Average of class Office (32.1 - 171.4, n=80, last 2 years) | |
| Average Intel Iris Xe Graphics G7 80EUs (28.9 - 133.8, n=84) | |
| Fujitsu LifeBook U7311 i5 | |
| Lenovo ThinkPad L14 G2 AMD | |
| Dynabook Tecra A40-J-12E | |
| 1920x1080 High/On (Advanced Graphics Off) AA:2xMSAA + FX AF:8x | |
| Average of class Office (8.49 - 97.5, n=80, last 2 years) | |
| Average Intel Iris Xe Graphics G7 80EUs (7.81 - 32, n=83) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| 1920x1080 Highest Settings possible AA:4xMSAA + FX AF:16x | |
| Average of class Office (3.35 - 47.8, n=78, last 2 years) | |
| Average Intel Iris Xe Graphics G7 80EUs (3.07 - 11.6, n=70) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Fujitsu LifeBook U7311 i5 | |
| Dynabook Tecra A40-J-12E | |
| low | med. | high | ultra | |
|---|---|---|---|---|
| GTA V (2015) | 55.5 | 43.8 | 12.3 | 4.88 |
| The Witcher 3 (2015) | 52.6 | 32.1 | 11.8 | 8.41 |
| Dota 2 Reborn (2015) | 99 | 61.3 | 35.1 | 32.7 |
| Final Fantasy XV Benchmark (2018) | 25.1 | 13.6 | 13.6 | |
| X-Plane 11.11 (2018) | 21.4 | 30.8 | 29.2 | |
| Far Cry 5 (2018) | 29 | 14 | 13 | 13 |
| Strange Brigade (2018) | 51 | 19.5 | 16.8 | |
| F1 2020 (2020) | 55.6 | 28.4 | ||
| F1 2021 (2021) | 48.1 |
Emissions & Energy - The Dynabook stays cool and quiet
噪声排放
Dynabook Tecra A40是一款非常安静的笔记本电脑，它有两个风扇。即使在满负荷的情况下，这台蛤壳式电脑也几乎听不到声音。在正常使用中，即使在非常安静的环境中，也几乎听不到两个风扇发出的噪音。在测试中，你发现自己把耳朵贴在办公室的笔记本电脑上，以确定风扇的功能。笔记本电脑没有发出任何其他噪音。
Noise Level
| Idle |
| 25 / 25 / 25 dB(A) |
| Load |
| 30 / 30 dB(A) |
 | ||
30 dB silent 40 dB(A) audible 50 dB(A) loud |
||
min:  , med:  , max:  Earthworks M23R, Arta (15 cm distance) environment noise: 25 dB(A) | ||
温度
除了风扇启动稍有延迟外，Dynabook Tecra A40在冷却方面不能被指责有任何弱点。这台商务笔记本的温度始终保持在平均61°C（141.8°F）的水平，并且没有出现热窒息现象。掌托上的表面温度保持在一个非常舒适的水平，约为25 °C（77°F）。只有键盘和笔记本电脑的底部在45 °C(113°F)左右会有点热，但它们远非令人不舒服。
(±) The maximum temperature on the upper side is 41.1 °C / 106 F, compared to the average of 34.3 °C / 94 F, ranging from 21.2 to 62.5 °C for the class Office.
(-) The bottom heats up to a maximum of 45.3 °C / 114 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 24.9 °C / 77 F, compared to the device average of 29.5 °C / 85 F.
(+) Playing The Witcher 3, the average temperature for the upper side is 31.6 °C / 89 F, compared to the device average of 29.5 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 25.4 °C / 77.7 F and are therefore cool to the touch.
(+) The average temperature of the palmrest area of similar devices was 27.6 °C / 81.7 F (+2.2 °C / 4 F).
演讲者
Tecra A40的扬声器对于一台办公笔记本电脑来说是足够的。在语音通话中，你可以通过笔记本的扬声器很好地理解对方的意思。然而，在播放音乐或电影时，可以明显感觉到低音的不足。外部扬声器可以通过蓝牙或3.5毫米插孔连接。
Dynabook Tecra A40-J-12E audio analysis
(+) | speakers can play relatively loud (82.6 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 28.6% lower than median
(±) | linearity of bass is average (9.9% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | reduced mids - on average 6.4% lower than median
(±) | linearity of mids is average (7.2% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 4.6% away from median
(+) | highs are linear (3.9% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (22.1% difference to median)
Compared to same class
» 54% of all tested devices in this class were better, 9% similar, 37% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 61% of all tested devices were better, 7% similar, 33% 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%
能源消耗
Dynabook A40是相当节能的，在耗电量方面位居对比设备之间。附带的电源适配器为笔记本提供了最大65瓦的功率，而且尺寸足够大。只有在压力测试中，笔记本才会在这个功率极限上出现短暂的划痕，但随后很快就稳定在40瓦多一点。
| Off / Standby | 0.21 / 0.43 Watt |
| Idle | 3.3 / 5.1 / 6 Watt |
| Load |
26.4 / 65.3 Watt |
   
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
Energy absorption Witcher 3 / Stress test
电池寿命
笔记本在全亮度状态下也能实现电池电量8小时工作的目标（WLAN测试）。Dynabook的53Wh强劲电池使该办公设备处于比较领域的顶端。
| Battery Runtime | |
| WiFi Websurfing | |
| Dynabook Tecra A40-J-12E | |
| Average of class Office (230 - 1349, n=92, last 2 years) | |
| Honor Magicbook 14 i7-1165G7 | |
| Fujitsu LifeBook U7311 i5 | |
| Lenovo ThinkPad L14 G2 AMD | |
| WiFi Websurfing max. Brightness | |
| Dynabook Tecra A40-J-12E | |
| Average of class Office (291 - 720, n=44, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Honor Magicbook 14 i7-1165G7 | |
Pros
Cons
结论 - 一个有小问题的好帮手
来自Dynabook的中端商务笔记本电脑Tecra A40不幸的是，最后看起来没有完成。你不必在处理器和电池性能方面做出任何让步，但IPS显示屏简直太暗了，由于颜色偏差太大，该设备也不适合编辑图片。然而，那些主要在办公室工作的人，也许在外部显示器上工作的人应该看看这个设备。
Dynabook Tecra A40几乎没有提供任何独特的卖点来促进对该笔记本的决定。虽然系统性能对于办公电脑来说是足够的，但黑暗的IPS显示屏尤其给本来不错的整体印象蒙上了阴影。
只有在系统扩展选项方面，Dynabook Tecra A40才从人群中脱颖而出。一个免费的SO-DIMM插槽、两个Thunderbolt 4 USB-C端口和更换固态硬盘的选项给了买家比许多竞争对手更多的自由，比如说 Honor's MagicBook 14.那些需要更多CPU性能的人应该看一下 ThinkPad L14 G2配备Ryzen Pro处理器。笔记本 LifeBook U7311提供了比Tecra更多的端口，而且其13英寸显示屏更加紧凑。
价格和可用性
Dynabook Tecra A40-J-12E在各零售商处有售，价格约为1,000欧元（约合1,164美元）。在Amazon(DE)该笔记本的零售价波动很大。通过制造商的网站https://de.dynabook.com/laptops/tecra/tecra-a40/tecra-a40-j-12e/tab/where-to-buy/你可以找到许多Dynabook的零售商。
Dynabook Tecra A40-J-12E
- 10/16/2021 v7 (old)
Marc Herter
Price comparison
