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Magyar惠普Chromebook 15a (2023) 评测：学生和休闲冲浪者的最基本上网设备
Chromebook 已经走过了很长的一段路，从最初为学童购买的 "小玩意儿"，发展到现在能够真正帮助提高移动办公效率。
最近推出的一些 Chromebook，如惠普蜻蜓 Pro, 华硕Chromebook Flip CX5和 联想 IdeaPad GamingChromebook 16在提供高端Chromebook 体验的同时，原始设备制造商继续推出针对教育市场或首次购买 PC 的入门级 Chromebook。
惠普Chromebook 15a 就是其中之一，它是一款基本的入门级Chromebook ，最近在印度上市。它配备了 英特尔赛扬 N4500处理器、4 GB 内存和 128 GB eMMC 存储空间，这些配置在 2023 年还远远谈不上出众。
惠普Chromebook 15a 的售价为 28999 英镑（350 美元），提供一年标准保修。这个价位值得考虑吗？让我们拭目以待。
潜在的竞争对手比较
Rating | Date | Model | Weight | Height | Size | Resolution | Best Price |
|---|---|---|---|---|---|---|---|
| 77.2 % | 08/2023 | HP Chromebook 15a-n0008TU Celeron N4500, UHD Graphics (Jasper Lake 16 EU) | 1.7 kg | 18.1 mm | 15.60" | 1366x768 | |
| 83.7 % | 06/2022 | Acer Chromebook 514 CB514-1WT-36DP i3-1115G4, UHD Graphics Xe G4 48EUs | 1.4 kg | 19.3 mm | 14.00" | 1920x1080 | |
| 80.7 % | 10/2021 | Acer Chromebook 15 CB315-3HT-P297 Pentium N5030, UHD Graphics 605 | 1.9 kg | 20.3 mm | 15.60" | 1920x1080 | |
| 79.9 % | 01/2021 | Acer Chromebook 514 CB514-1HT-P1BM Pentium N4200, HD Graphics 505 | 1.4 kg | 17 mm | 14.00" | 1920x1080 | |
| 79.4 % | 01/2022 | Lenovo IdeaPad Duet 5 Chromebook SD 7c, Adreno 618 | 715 g | 7.2 mm | 13.30" | 1920x1080 | |
| 79.5 % | 10/2021 | HP Chromebook x2 11-da0023dx SD 7c, Adreno 618 | 583 g | 7.7 mm | 11.00" | 2160x1440 | |
| 80.6 % | Lenovo Chromebook S340-14T 81V30002GE Celeron N4000, UHD Graphics 600 | 1.4 kg | 18.8 mm | 14.00" | 1920x1080 |
底盘和连接性塑料结构，网络性能良好
由于预算有限，Chromebook 15a 的机身并不高档。机身结构以塑料为主，但非常坚固，足以承受学生日常使用时的各种变化。显示屏和键盘面板的弯曲度不大。
端口选择稀少，只有两个 USB 3.0 Type-C 端口和一个 USB 3.0 Type-A 端口，以及一个 microSD 卡插槽和一个组合音频插孔。两个 USB Type-C 端口均支持 Power Delivery 和 DisplayPort 1.4-out。
microSD 读卡器是我们在Chromebook 中见过的性能较好的读卡器之一，但它落后于宏碁的读卡器。 宏碁Chromebook 514.
| SD Card Reader - average JPG Copy Test (av. of 3 runs) | |
| Acer Chromebook 514 CB514-1WT-36DP (AV Pro SD microSD 128 GB V60) | |
| HP Chromebook 15a-n0008TU (AV Pro SD microSD 128 GB V60) | |
| Average of class Office (8 - 82.7, n=50, last 2 years) | |
| Lenovo Chromebook S340-14T 81V30002GE (Toshiba Exceria Pro M501 microSDXC 64GB) | |
| HP Chromebook x2 11-da0023dx (Angelbird V60) | |
| Acer Chromebook 15 CB315-3HT-P297 (Toshiba Exceria Pro M501 microSDXC 64GB) | |
Chromebook 15a 使用的是支持 2x2 Wi-Fi 5 的 Realtek WLAN 卡。
当连接到华硕 ROG Rapture GT-AXE11000 路由器时，我们观察到网络相当稳定，掉线现象极少。
720p 网络摄像头并不值得一提。图像质量不尽如人意，噪点多，色彩偏差大。
| Networking | |
| iperf3 transmit AXE11000 | |
| HP Chromebook 15a-n0008TU | |
| iperf3 receive AXE11000 | |
| HP Chromebook 15a-n0008TU | |
| iperf3 transmit AX12 | |
| HP Chromebook x2 11-da0023dx | |
| Lenovo IdeaPad Duet 5 Chromebook | |
| iperf3 receive AX12 | |
| HP Chromebook x2 11-da0023dx | |
| Lenovo IdeaPad Duet 5 Chromebook | |
输入设备：无背光全尺寸键盘
Chromebook 15a 配备了带数字键盘的全尺寸键盘。键盘的键程不是很深，但输入简短的文档仍然令人满意。
习惯使用传统 Windows 笔记本电脑的用户需要熟悉 Chrome OS 的快捷键。键盘提供了大多数功能的快捷键，包括电源选项、通知中心、亮度和音量调节以及截图工具。
8 厘米 x 12.5 厘米的触摸板空间宽敞，点击反应灵敏。由于没有直接右键点击功能，因此在点击时必须按住 Alt 键才能访问上下文菜单。触摸板偶尔会感觉生硬，难以点击，但在其他方面都能提供流畅的滑动体验。
显示屏史前 TN 面板，色彩不佳，没有 PWM
惠普Chromebook 15a 采用 1366 x 768 TN LED 面板，这对于 2023 年的笔记本电脑来说已经过时了。惠普规定该面板的峰值亮度为 250 尼特，但我们在中心位置测得的亮度可达 260 尼特。
由于采用的是 TN 面板，背光渗漏非常小，亮度分布也不错，为 81%。不过，该面板在其他方面的表现都相当糟糕。
从 100% 黑色到 100% 白色的转换速度相当快，但从 50% 灰色到 80% 灰色的响应时间偏长。
在所有测试的亮度水平下，我们都没有观察到 PWM 或背景闪烁，这意味着显示屏应该很容易上眼。
| |||||||||||||||||||||||||
Brightness Distribution: 81 %
Center on Battery: 256 cd/m²
Contrast: 520:1 (Black: 0.5 cd/m²)
ΔE Color 13.2 | 0.5-29.43 Ø5
ΔE Greyscale 14.1 | 0.57-98 Ø5.3
57.5% sRGB (Calman 2D)
Gamma: 2.47
| HP Chromebook 15a-n0008TU 1366x768, 15.60 | Acer Chromebook 514 CB514-1WT-36DP 1920x1080, 14.00 | Acer Chromebook 15 CB315-3HT-P297 1920x1080, 15.60 | Acer Chromebook 514 CB514-1HT-P1BM 1920x1080, 14.00 | Lenovo IdeaPad Duet 5 Chromebook 1920x1080, 13.30 | HP Chromebook x2 11-da0023dx 2160x1440, 11.00 | Lenovo Chromebook S340-14T 81V30002GE 1920x1080, 14.00 | |
|---|---|---|---|---|---|---|---|
| Response Times | -75% | -51% | -98% | 84% | -100% | -122% | |
| Response Time Grey 50% / Grey 80% * | 38.33 ? | 38 ? 1% | 20 ? 48% | 44 ? -15% | 2.3 ? 94% | 46.4 ? -21% | 46 ? -20% |
| Response Time Black / White * | 9.61 ? | 24 ? -150% | 24 ? -150% | 27 ? -181% | 2.6 ? 73% | 26.8 ? -179% | 31 ? -223% |
| PWM Frequency | 25000 ? | 250 | 60.2 ? | ||||
| Screen | 39% | 51% | 0% | 61% | 66% | 28% | |
| Brightness middle | 260 | 242 -7% | 272 5% | 204 -22% | 358 38% | 447.8 72% | 248 -5% |
| Brightness | 233 | 225 -3% | 229 -2% | 190 -18% | 366 57% | 427 83% | 237 2% |
| Brightness Distribution | 81 | 82 1% | 78 -4% | 83 2% | 97 20% | 88 9% | 85 5% |
| Black Level * | 0.5 | 0.18 64% | 0.185 63% | 0.29 42% | 0.45 10% | 0.31 38% | |
| Contrast | 520 | 1344 158% | 1470 183% | 703 35% | 995 91% | 800 54% | |
| Colorchecker dE 2000 * | 13.2 | 6.61 50% | 4.44 66% | 14.66 -11% | 1.93 85% | 1.48 89% | |
| Colorchecker dE 2000 max. * | 21.27 | 22.53 -6% | 18.84 11% | 25.65 -21% | 4.78 78% | 2.6 88% | |
| Greyscale dE 2000 * | 14.1 | 6.21 56% | 2.2 84% | 14.75 -5% | 1.6 89% | 1.9 87% | 3.58 75% |
| Gamma | 2.47 89% | 2.54 87% | 2.44 90% | 1.69 130% | 2.22 99% | 2.08 106% | 2.17 101% |
| CCT | 15924 41% | 6373 102% | 6448 101% | 8907 73% | 6238 104% | 6624 98% | 6697 97% |
| Total Average (Program / Settings) | -18% /
16% | 0% /
30% | -49% /
-19% | 73% /
67% | -17% /
33% | -47% /
-9% |
* ... smaller is better
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 9.61 ms ... rise ↗ and fall ↘ combined | ↗ 6.07 ms rise |  |
| ↘ 3.54 ms fall | ||
| The screen shows fast response rates in our tests and should be suited for gaming. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 21 % of all devices are better. This means that the measured response time is better than the average of all tested devices (21.5 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 38.33 ms ... rise ↗ and fall ↘ combined | ↗ 19.51 ms rise |  |
| ↘ 18.82 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.2 (minimum) to 636 (maximum) ms. » 52 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (33.7 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 17903 (minimum: 5 - maximum: 3846000) Hz was measured. | |||
我们的 PWM 排名表提供了更多已评测设备的比较。
由于对比度低至 520:1，该面板的性能明显较差，在灰度和 ColorChecker 测试中都出现了明显偏差。2D sRGB 覆盖率也不尽如人意，仅为 57.5% 左右。
屏幕亮度较低，在户外无法获得良好的观看体验。可视角度极差，色彩和亮度信息丢失严重。
性能翡翠湖赛扬 N4500 在单核性能上与骁龙 7c 不相伯仲
HPChromebook 15a 仅配备 英特尔赛扬 N4500Jasper Lake 处理器。赛扬 N4500 是一款 6 W 双核 CPU，无超线程功能，最高主频可达 2.8 GHz。SoC 套件还包括一个UHD Graphics iGPU，有 16 个执行单元（EU）。
CPU 性能
Chromebook 15a 中的赛扬 N4500 性能类似于 骁龙 7c中的 联想 IdeaPad Duet 5Chromebook和 HPChromebook x2 11在 Geekbench 5.4 单核性能测试中，这两款 Chromebook 的性能与联想 IdeaPad Duet 5 和惠普 x2 11 的骁龙 7c 不相上下。然而，这些 Chromebook 在多核和 ML 性能方面却遥遥领先。尽管如此，我们还是观察到它们比 Gemini Lake 赛扬 N4000在 联想Chromebook S340.
Chromebook 15a 在 CrXPRT 2 和其他浏览器基准测试中表现出色。不出所料，它比不上功能强大得多的 酷睿 i3-1115G4-采用 宏碁Chromebook 514.
| Geekbench 5.5 | |
| Single-Core | |
| Acer Chromebook 514 CB514-1WT-36DP | |
| Lenovo IdeaPad Duet 5 Chromebook | |
| HP Chromebook x2 11-da0023dx | |
| HP Chromebook 15a-n0008TU | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| Multi-Core | |
| Acer Chromebook 514 CB514-1WT-36DP | |
| Lenovo IdeaPad Duet 5 Chromebook | |
| HP Chromebook x2 11-da0023dx | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| HP Chromebook 15a-n0008TU | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| Geekbench 6.2 | |
| Single-Core | |
| HP Chromebook 15a-n0008TU | |
| Multi-Core | |
| HP Chromebook 15a-n0008TU | |
| Geekbench ML | |
| TensorFlow Lite CPU 0.5 | |
| HP Chromebook x2 11-da0023dx | |
| HP Chromebook 15a-n0008TU | |
| TensorFlow Lite NNAPI / Core ML 0.5 | |
| HP Chromebook x2 11-da0023dx | |
| HP Chromebook 15a-n0008TU | |
| CrXPRT 2 - Score | |
| Acer Chromebook 514 CB514-1WT-36DP | |
| HP Chromebook 15a-n0008TU | |
| HP Chromebook x2 11-da0023dx | |
| Browser Performance Rating - Percent | |
| Acer Chromebook 514 CB514-1WT-36DP -1! | |
| HP Chromebook 15a-n0008TU | |
| Lenovo IdeaPad Duet 5 Chromebook -1! | |
| Acer Chromebook 15 CB315-3HT-P297 -2! | |
| HP Chromebook x2 11-da0023dx -2! | |
| Lenovo Chromebook S340-14T 81V30002GE -2! | |
| WebXPRT 3 - Overall | |
| Acer Chromebook 514 CB514-1WT-36DP (Chrome 102) | |
| HP Chromebook 15a-n0008TU (Chrome 115) | |
| Acer Chromebook 15 CB315-3HT-P297 (Chrome 87.0.4280.88) | |
| Lenovo IdeaPad Duet 5 Chromebook (Chrome 96.0.4664.111) | |
| Lenovo Chromebook S340-14T 81V30002GE (Chrome 79.0.3945.86) | |
| HP Chromebook x2 11-da0023dx (Chrome 93.0.4577.107) | |
| WebXPRT 4 - Overall | |
| HP Chromebook 15a-n0008TU (Chrome 115.0.0.0) | |
| Mozilla Kraken 1.1 - Total | |
| Lenovo Chromebook S340-14T 81V30002GE (Chrome 79.0.3945.86) | |
| HP Chromebook x2 11-da0023dx (Chrome 93.0.4577.107) | |
| Acer Chromebook 15 CB315-3HT-P297 (Chrome 87.0.4280.88) | |
| Lenovo IdeaPad Duet 5 Chromebook (Chrome 96.0.4664.111) | |
| HP Chromebook 15a-n0008TU | |
| Acer Chromebook 514 CB514-1WT-36DP (Chrome 102) | |
| Octane V2 - Total Score | |
| Acer Chromebook 514 CB514-1WT-36DP (Chrome 102) | |
| Lenovo IdeaPad Duet 5 Chromebook (Chrome 96.0.4664.111) | |
| HP Chromebook 15a-n0008TU | |
| HP Chromebook x2 11-da0023dx (Chrome 93.0.4577.107) | |
| Acer Chromebook 15 CB315-3HT-P297 (Chrome 87.0.4280.88) | |
| Lenovo Chromebook S340-14T 81V30002GE (Chrome 79.0.3945.86) | |
| Speedometer 2.0 - Result | |
| Acer Chromebook 514 CB514-1WT-36DP (Chrome 102) | |
| HP Chromebook 15a-n0008TU | |
| Acer Chromebook 15 CB315-3HT-P297 (Chrome 87.0.4280.88) | |
| Lenovo IdeaPad Duet 5 Chromebook (Chrome 96.0.4664.111) | |
| Lenovo Chromebook S340-14T 81V30002GE (Chrome 79.0.3945.86) | |
| Jetstream 2 - Total Score | |
| Acer Chromebook 514 CB514-1WT-36DP (Chrome 102) | |
| HP Chromebook 15a-n0008TU | |
| Lenovo IdeaPad Duet 5 Chromebook (Chrome 96.0.4664.111) | |
| HP Chromebook x2 11-da0023dx (Chrome 93.0.4577.107) | |
* ... smaller is better
前往我们的 英特尔赛扬 N4500页面了解更多信息和性能比较。
系统性能
Android 的 PCMark 显示，Chromebook 15a 的性能落后于搭载骁龙 7c 的 Chromebook 和宏碁Chromebook 514。一般来说，只要不超出休闲网页浏览和文档工作的范围，系统性能还是不错的。
任何额外的压力都会立即暴露双核 CPU 的弱点，整个体验就会开始感觉迟钝。Chrome OS确实提供了一个Linux虚拟机，但无法使用它访问低级内核功能。
惠普完全可以在保持低成本的同时，选择老一代英特尔酷睿 i3 或 AMD Ryzen 3 芯片，而不是采用基本上只适合启动 Chrome 浏览器的双核赛扬 CPU。
| PCMark for Android / Work 3.0 | |
| Acer Chromebook 514 CB514-1WT-36DP | |
| Lenovo IdeaPad Duet 5 Chromebook | |
| HP Chromebook x2 11-da0023dx | |
| Average of class Office (6885 - 11801, n=4, last 2 years) | |
| HP Chromebook 15a-n0008TU | |
| Average Intel Celeron N4500, Intel UHD Graphics (Jasper Lake 16 EU) () | |
存储设备
128 GB eMMC 存储空间给人一种贫血的感觉，显示出不一致的连续读写，甚至落后于 IdeaPad Duet 5Chromebook 中的 64 GB eMMC 闪存。
存储空间可通过 microSD 卡插槽进行扩展。惠普还随笔记本电脑捆绑了为期一年的 100 GB Google Drive 订阅服务。
Cross Platform Disk Test
图形处理器性能
16-EU 16 欧UHD Graphics赛扬 N4500 的 iGPU 比 Adreno 618 Adreno 618在 3DMark Sling Shot 和 GFXBench 屏幕测试中遥遥领先。不过，它在屏幕外运行时的表现却不尽如人意。
可以玩《Asphalt 8》等游戏，但不能达到最高设置。
| 3DMark | |
| 2560x1440 Sling Shot OpenGL ES 3.0 Graphics | |
| Lenovo IdeaPad Duet 5 Chromebook | |
| HP Chromebook 15a-n0008TU | |
| Average Intel UHD Graphics (Jasper Lake 16 EU) () | |
| HP Chromebook x2 11-da0023dx | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| Average of class Office (2047 - 2842, n=3, last 2 years) | |
| 2560x1440 Sling Shot Extreme (ES 3.1) Graphics | |
| HP Chromebook 15a-n0008TU | |
| Average Intel UHD Graphics (Jasper Lake 16 EU) () | |
| Acer Chromebook 514 CB514-1HT-P1BM | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| Average of class Office (1267 - 2129, n=3, last 2 years) | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| Wild Life Score | |
| Acer Chromebook 514 CB514-1WT-36DP | |
| Average of class Office (727 - 5974, n=5, last 2 years) | |
| HP Chromebook 15a-n0008TU | |
| Average Intel UHD Graphics (Jasper Lake 16 EU) () | |
| GFXBench (DX / GLBenchmark) 2.7 | |
| T-Rex Onscreen | |
| Acer Chromebook 514 CB514-1WT-36DP | |
| HP Chromebook 15a-n0008TU | |
| Average Intel UHD Graphics (Jasper Lake 16 EU) () | |
| Average of class Office (35 - 58, n=4, last 2 years) | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| 1920x1080 T-Rex Offscreen | |
| Acer Chromebook 514 CB514-1WT-36DP | |
| Average of class Office (38 - 210, n=4, last 2 years) | |
| Average Intel UHD Graphics (Jasper Lake 16 EU) (38 - 74.5, n=2) | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| HP Chromebook 15a-n0008TU | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| GFXBench 3.0 | |
| on screen Manhattan Onscreen OGL | |
| HP Chromebook 15a-n0008TU | |
| Average Intel UHD Graphics (Jasper Lake 16 EU) () | |
| Average of class Office (23 - 49, n=3, last 2 years) | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| 1920x1080 1080p Manhattan Offscreen | |
| Average Intel UHD Graphics (Jasper Lake 16 EU) (18 - 43.4, n=2) | |
| Average of class Office (18 - 24, n=3, last 2 years) | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| HP Chromebook 15a-n0008TU | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| GFXBench 3.1 | |
| on screen Manhattan ES 3.1 Onscreen | |
| Acer Chromebook 514 CB514-1WT-36DP | |
| HP Chromebook 15a-n0008TU | |
| Average Intel UHD Graphics (Jasper Lake 16 EU) () | |
| Average of class Office (15 - 59, n=4, last 2 years) | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| 1920x1080 Manhattan ES 3.1 Offscreen | |
| Acer Chromebook 514 CB514-1WT-36DP | |
| Average of class Office (8.2 - 85, n=4, last 2 years) | |
| Average Intel UHD Graphics (Jasper Lake 16 EU) (8.2 - 24.7, n=2) | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| HP Chromebook 15a-n0008TU | |
更多信息和基准测试可参见我们的 英特尔UHD Graphics （碧玉湖 16 EU）页面。
Emissions & Energy: Fanless, cool, and frugal
温度
在负载情况下，我们测得顶部最高温度为 37.8 °C，底部最高温度为 33.6 °C。因此，Chromebook 15a 可以安全地长时间放在膝上使用，而不会有受伤的危险。
(+) The maximum temperature on the upper side is 37.8 °C / 100 F, compared to the average of 34.2 °C / 94 F, ranging from 21.2 to 62.5 °C for the class Office.
(+) The bottom heats up to a maximum of 33.6 °C / 92 F, compared to the average of 36.7 °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 29.5 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 28.2 °C / 82.8 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 27.7 °C / 81.9 F (-0.5 °C / -0.9 F).
发言人
板载立体声扬声器的音量为 72.8 db(A)，还算不错。低音几乎不存在，但高音发音清晰。
用户可以使用 3.5 毫米耳机插孔或蓝牙 5 获得更好的音频体验。
HP Chromebook 15a-n0008TU audio analysis
(±) | speaker loudness is average but good (72.8 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 16.2% lower than median
(±) | linearity of bass is average (7.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 6.2% higher than median
(±) | linearity of mids is average (7.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.9% away from median
(+) | highs are linear (6.8% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (19.4% difference to median)
Compared to same class
» 33% of all tested devices in this class were better, 8% similar, 59% worse
» The best had a delta of 7%, average was 22%, worst was 53%
Compared to all devices tested
» 42% of all tested devices were better, 8% similar, 50% 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
» 5% of all tested devices in this class were better, 2% similar, 93% worse
» The best had a delta of 5%, average was 19%, worst was 53%
Compared to all devices tested
» 3% of all tested devices were better, 1% similar, 96% worse
» The best had a delta of 4%, average was 25%, worst was 134%
耗电量
Chromebook 15a 配备了高能效、低功耗的处理器，功耗要求适中。我们记录的最大负载功耗为 14 瓦，与搭载 Gemini Lake 处理器的 Chromebook 相比相当经济。
不用说，对比中采用 ARM 处理器的 Chromebook 能耗更低。
| Off / Standby |   0.36 / 0.6 Watt |
| Idle |  2.82 / 6.77 / 6.67 Watt |
| Load |
12.33 / 14.11 Watt |
    
| |
Power Consumption: Geekbench 5.4 / GFXBench 150 cd/m2
| HP Chromebook 15a-n0008TU Celeron N4500, UHD Graphics (Jasper Lake 16 EU), TN LED, 1366x768, 15.60 | Acer Chromebook 514 CB514-1WT-36DP i3-1115G4, UHD Graphics Xe G4 48EUs, IPS, 1920x1080, 14.00 | Acer Chromebook 15 CB315-3HT-P297 Pentium N5030, UHD Graphics 605, IPS, 1920x1080, 15.60 | Acer Chromebook 514 CB514-1HT-P1BM Pentium N4200, HD Graphics 505, IPS, 1920x1080, 14.00 | Lenovo IdeaPad Duet 5 Chromebook SD 7c, Adreno 618, OLED, 1920x1080, 13.30 | HP Chromebook x2 11-da0023dx SD 7c, Adreno 618, IPS, 2160x1440, 11.00 | Lenovo Chromebook S340-14T 81V30002GE Celeron N4000, UHD Graphics 600, IPS, 1920x1080, 14.00 | Average Intel UHD Graphics (Jasper Lake 16 EU) | Average of class Office | |
|---|---|---|---|---|---|---|---|---|---|
| Power Consumption | -23% | -4% | -46% | 22% | 32% | -3% | -41% | -128% | |
| Idle Minimum * | 2.82 | 4.2 -49% | 2.9 -3% | 3.6 -28% | 0.96 66% | 1.7 40% | 2.4 15% | 5.65 ? -100% | 4.3 ? -52% |
| Idle Average * | 6.77 | 6.7 1% | 6.5 4% | 11.3 -67% | 6.7 1% | 5.2 23% | 6.4 5% | 6.61 ? 2% | 7.34 ? -8% |
| Idle Maximum * | 6.67 | 7.4 -11% | 6.6 1% | 12.3 -84% | 6.8 -2% | 5.3 21% | 10.4 -56% | 7.54 ? -13% | 9.13 ? -37% |
| Load Average * | 12.33 | 9.7 21% | 13 -5% | 15.4 -25% | 9 27% | 6.1 51% | 8.6 30% | 16.2 ? -31% | 41 ? -233% |
| Load Maximum * | 14.11 | 25.3 -79% | 16.6 -18% | 17.9 -27% | 11.4 19% | 10.6 25% | 15.7 -11% | 23.1 ? -64% | 58 ? -311% |
* ... smaller is better
电池寿命
Chromebook 15a 的电池容量为 47.3 瓦时，虽然不是最耐用的，但也能帮助您在学校度过典型的一天，而无需去找充电器。
相比之下，Chromebook x2 和 IdeaPad Duet 5Chromebook 尽管电池容量较小，但由于采用了高效的骁龙 7c，运行时间更长。
捆绑的 45 W USB-C 电源适配器需要约 1.5 小时才能为设备充满电。
| Battery Runtime - WiFi Websurfing | |
| Lenovo IdeaPad Duet 5 Chromebook | |
| Acer Chromebook 15 CB315-3HT-P297 | |
| Acer Chromebook 514 CB514-1HT-P1BM | |
| Average of class Office (300 - 1137, n=108, last 2 years) | |
| HP Chromebook x2 11-da0023dx | |
| Acer Chromebook 514 CB514-1WT-36DP | |
| Lenovo Chromebook S340-14T 81V30002GE | |
| HP Chromebook 15a-n0008TU | |
Pros
Cons
评价通向网络的门户，深入浅出
惠普Chromebook 15a 试图为学生、老人和那些只需要廉价高等教育上网设备的人提供一个经济实惠的选择，但在这一过程中却走了太多弯路。
从结构上看，Chromebook 15a 的基本结构是正确的，应该经得起年轻学生粗心大意的操作。2x2 WLAN 网卡可提供不错的网络连接，不会出现严重的网速下降。输入设备足以满足教学使用的需要，只是不要指望用它来起草你的下一部巨著。
Chromebook 15a 的显示屏是最大的遗憾之一。不合格的 TN 面板色彩单调、光照暗淡、可视角度差，在视觉上给人的印象很差。唯一值得庆幸的是没有 PWM。
惠普Chromebook 15a 为学生和休闲上网者带来了轻松简单的 Chrome 操作系统。它试图提供经济实惠的互联网之旅，但走了太多弯路"。
对于在线任务，包括处理大量标签页，它的性能还不错。对 Linux 和Android 的支持提高了使用更强大应用程序的期望值，但遗憾的是，由于其孱弱的 SoC，任何要求适中的任务都会让Chromebook 15a 喘不过气来。
它的功耗很低，Wi-Fi 电池运行时间尚可。不过，搭载 ARM 处理器的 Chromebook（如联想 IdeaPad Duet 5Chromebook 和惠普Chromebook x2 11 ）在这方面优势明显。
购买 3 万元以下（350 美元以下）的笔记本电脑很有挑战性，但市场上有不少选择，如Core i3-1115G4-powered Acer One、Ryzen 3 3250U-powered HP 255，以及配备 Core i3 10 代处理器的 Infinix INBook Y1 Plus 等本地产品。
所有这些产品都配备了性能更强的处理器、更出色的图形处理器、更大的存储空间，甚至在纸面上还能提供相当不错的显示效果，因此很难推荐Chromebook 15a。
惠普也许有它的道理，但我们都应该在 2023 年拥有更好的入门级设备。
价格和供应情况
经过测试的惠普Chromebook 15a-na0008TU 目前在印度亚马逊的零售价为 28,999 英镑。同一设备的另一个变体（Chromebook 15a-na0012TU）没有明显差异，售价也较低，为 25,990 英镑。
Chromebook 15 配备 8GB 内存的英特尔奔腾 N6000 机型在美国亚马逊的售价为 329 美元，而配备奔腾 N200 的机型售价为 279 美元。
HP Chromebook 15a-n0008TU
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08/10/2023 v7
Vaidyanathan Subramaniam
Transparency
The present review sample was made available to the author as a loan by the manufacturer or a shop for the purposes of review. The lender had no influence on this review, nor did the manufacturer receive a copy of this review before publication. There was no obligation to publish this review.
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