雷克沙NM800 Pro显示了对PCIe4 x4 SSD使用散热器的重要性

虽然固态硬盘的散热器一直是可选的，但如果你想最大限度地利用PCIe4 x4的速度，这一代的散热器已经成为必需品。雷克沙NM800 Pro包括一个选项，它也可以装在PS5里面。

Allen Ngo, Published 11/11/2022 🇺🇸 🇪🇸 ...

Accessory Laptop / Notebook Desktop Storage

Lexar Professional 2TB NM800 Pro现在正在亚马逊上发货，价格为180美元或220美元。制造商给我们寄来了一个带散热片的样品，供我们做基准测试和印象。对于这项测试，我们特别感兴趣的是温度，以及该硬盘在保持7500MB/s的最大宣传读取率方面的能力。

我们测试NM800 Pro的主机是英特尔NUC11，配备11代酷睿i7-1165G7处理器。它支持PCIe4 x4传输速率，它甚至包括一个用于任何安装的固态硬盘的内置散热器，但我们已经在英特尔迷你电脑内移除这个散热器，以便测试雷克沙固态硬盘和散热器。

请记住，零售盒中不包括用于将硬盘固定在M.2插槽上的螺丝。相比之下，其他SSD制造商往往包括一个。希望你的主机设备已经包含了一个螺丝。

安装完毕后，我们将DiskSpd循环运行了半个小时，看看硬盘会变得多热，传输率是否需要节流。幸运的是，我们下面的图表和截图显示，该硬盘稳定在7100MB/s和合理的66C。尽管如此，看到NM800和散热器没有出现重大的温度或节流问题，这让人松了一口气。

为了说明SSD的散热片有多重要，我们用一块没有安装散热片的2TB SK Hynix P41 PCIe4 x4 NVMe SSD重复了上述测试。温度会达到93摄氏度，这就需要将性能节流到3500MB/s以下。简而言之，如果没有散热器，PCIe4驱动器的表现会更像PCIe3驱动器。

当然，用户仍然可以购买没有散热器的莱克赛尔NM800，以节省一些现金，但温度和性能的差异足以让我们尽可能地推荐使用散热器。

CrystalDiskMark 5.2 / 6

AS SSD

DiskSpd

CDM 5/6 Read Seq Q32T1: 7103 MB/s

CDM 5/6 Write Seq Q32T1: 5261 MB/s

CDM 5/6 Read 4K Q32T1: 477 MB/s

CDM 5/6 Write 4K Q32T1: 495.4 MB/s

CDM 5 Read Seq: 2824 MB/s

CDM 5 Write Seq: 3430 MB/s

CDM 5/6 Read 4K: 84.86 MB/s

CDM 5/6 Write 4K: 169.2 MB/s

Disk Throttling: DiskSpd Read Loop, Queue Depth 8

Lexar NM800 Pro 2 TB : Ø7044 (6476.06-7085.23)

SK Hynix Platinum P41 2 TB : Ø4820 (3473.07-6916.41)

Drive Performance Rating | DiskSpd | AS SSD

Drive Performance Rating - Percent
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	92.8 pt
Lexar NM800 Pro 2 TB	75.4 pt
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	72.8 pt
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	70.2 pt
SK Hynix Platinum P41 2 TB	65.2 pt
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	41.4 pt

DiskSpd
seq read
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	4191 (4183.82^min - 4190.96^max) MB/s +52%
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	3747 (3711.67^min - 3747.4^max) MB/s +36%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	3502 (3461.77^min - 3502.37^max) MB/s +27%
Lexar NM800 Pro 2 TB	2762 (2741.82^min - 2762.09^max) MB/s
SK Hynix Platinum P41 2 TB	2726 (2710.39^min - 2725.88^max) MB/s -1%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	1770 (1735.81^min - 1770.42^max) MB/s -36%
seq write
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	4158 (4124.82^min - 4157.89^max) MB/s +17%
Lexar NM800 Pro 2 TB	3553 (3226.47^min - 3553.02^max) MB/s
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	3495 (3351.26^min - 3494.69^max) MB/s -2%
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	3470 (3416.05^min - 3470.37^max) MB/s -2%
SK Hynix Platinum P41 2 TB	2303 (2258.1^min - 2303.1^max) MB/s -35%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	1324 (1199.03^min - 1323.72^max) MB/s -63%
seq q8 t1 read
Lexar NM800 Pro 2 TB	7056 (6103.55^min - 7056.44^max) MB/s
SK Hynix Platinum P41 2 TB	6835 (6096.6^min - 6835^max) MB/s -3%
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	6719 (6417.91^min - 6718.86^max) MB/s -5%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	6680 (5632.95^min - 6680.12^max) MB/s -5%
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	6656 (5809.03^min - 6655.73^max) MB/s -6%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	2260 (1924^min - 2259.89^max) MB/s -68%
seq q8 t1 write
Lexar NM800 Pro 2 TB	5290 (5252.49^min - 5289.55^max) MB/s
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	4914 (4664.7^min - 4914.05^max) MB/s -7%
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	4910 (4880.17^min - 4910.06^max) MB/s -7%
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	4468 (4431.23^min - 4467.85^max) MB/s -16%
SK Hynix Platinum P41 2 TB	4278 (4242.54^min - 4277.6^max) MB/s -19%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	1588 (1424.3^min - 1588.17^max) MB/s -70%
4k q1 t1 read
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	88 (87.7^min - 87.99^max) MB/s +14%
Lexar NM800 Pro 2 TB	77 (76.58^min - 77^max) MB/s
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	67.5 (65.71^min - 67.48^max) MB/s -12%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	55.7 (54.81^min - 55.71^max) MB/s -28%
SK Hynix Platinum P41 2 TB	50 (49.75^min - 50.01^max) MB/s -35%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	44.4 (36.52^min - 44.39^max) MB/s -42%
4k q1 t1 write
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	223 (222.73^min - 223.36^max) MB/s +41%
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	170.9 (165.47^min - 170.92^max) MB/s +8%
Lexar NM800 Pro 2 TB	157.8 (143.9^min - 157.8^max) MB/s
SK Hynix Platinum P41 2 TB	155.7 (138.58^min - 155.74^max) MB/s -1%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	150.2 (146.12^min - 150.2^max) MB/s -5%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	139 (135.15^min - 138.9^max) MB/s -12%
4k q32 t16 read
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	2191 (917.05^min - 2191.02^max) MB/s +106%
SK Hynix Platinum P41 2 TB	1175 (1165.82^min - 1174.98^max) MB/s +10%
Lexar NM800 Pro 2 TB	1065 (986.8^min - 1065.42^max) MB/s
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	1045 (950.02^min - 1044.68^max) MB/s -2%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	805 (800.4^min - 804.86^max) MB/s -24%
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	540 (532.43^min - 540.23^max) MB/s -49%
4k q32 t16 write
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	1403 (710.77^min - 1403.25^max) MB/s +171%
SK Hynix Platinum P41 2 TB	584 (569.81^min - 583.72^max) MB/s +13%
Lexar NM800 Pro 2 TB	517 (461.2^min - 517.09^max) MB/s
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	507 (497.24^min - 507.37^max) MB/s -2%
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	416 (398.57^min - 416.29^max) MB/s -20%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	384 (378.78^min - 383.65^max) MB/s -26%

AS SSD
Score Total
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	5792 Points +28%
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	5114 Points +13%
SK Hynix Platinum P41 2 TB	4976 Points +10%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	4672 Points +3%
Lexar NM800 Pro 2 TB	4532 Points
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	2566 Points -43%
Score Read
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	2307 Points +46%
SK Hynix Platinum P41 2 TB	1719 Points +9%
Lexar NM800 Pro 2 TB	1577 Points
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	1521 Points -4%
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	1451 Points -8%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	1184 Points -25%
Score Write
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	3046 Points +38%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	2507 Points +13%
SK Hynix Platinum P41 2 TB	2499 Points +13%
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	2371 Points +7%
Lexar NM800 Pro 2 TB	2210 Points
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	818 Points -63%
Seq Read
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	5411.56 MB/s +20%
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	5403 MB/s +20%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	4851.77 MB/s +7%
SK Hynix Platinum P41 2 TB	4633.49 MB/s +3%
Lexar NM800 Pro 2 TB	4517.69 MB/s
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	1972 MB/s -56%
Seq Write
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	3792 MB/s +32%
Lexar NM800 Pro 2 TB	2877.17 MB/s
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	2530.01 MB/s -12%
SK Hynix Platinum P41 2 TB	2186.99 MB/s -24%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	1910.85 MB/s -34%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	856 MB/s -70%
4K Read
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	80.4 MB/s +4%
Lexar NM800 Pro 2 TB	77.67 MB/s
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	70.31 MB/s -9%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	61.75 MB/s -20%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	56.7 MB/s -27%
SK Hynix Platinum P41 2 TB	43.25 MB/s -44%
4K Write
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	232.86 MB/s +14%
Lexar NM800 Pro 2 TB	204.7 MB/s
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	195.1 MB/s -5%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	176.4 MB/s -14%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	164.04 MB/s -20%
SK Hynix Platinum P41 2 TB	83.97 MB/s -59%
4K-64 Read
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	1687 MB/s +61%
SK Hynix Platinum P41 2 TB	1212.13 MB/s +16%
Lexar NM800 Pro 2 TB	1047.14 MB/s
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	974.07 MB/s -7%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	930 MB/s -11%
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	839.87 MB/s -20%
4K-64 Write
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	2560.31 MB/s +49%
SK Hynix Platinum P41 2 TB	2196.1 MB/s +28%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	2151.98 MB/s +25%
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	1797 MB/s +5%
Lexar NM800 Pro 2 TB	1717.84 MB/s
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	557 MB/s -68%
Access Time Read
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	0.082 ms * -447%
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	0.036 ms * -140%
SK Hynix Platinum P41 2 TB	0.036 ms * -140%
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	0.035 ms * -133%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	0.031 ms * -107%
Lexar NM800 Pro 2 TB	0.015 ms *
Access Time Write
Microsoft Surface Pro 8, i7-1185G7 Toshiba KBG40ZNS256G NVMe	0.156 ms * -174%
SK Hynix Platinum P41 2 TB	0.11 ms * -93%
HP Spectre x360 13.5 14t-ef000 Micron 3400 1TB MTFDKBA1T0TFH	0.066 ms * -16%
Lexar NM800 Pro 2 TB	0.057 ms *
Dell XPS 13 Plus 9320 i7-1280P OLED WDC PC SN810 512GB	0.049 ms * +14%
Lenovo ThinkBook Plus Gen2 Core i5 Samsung PM9A1 MZVL2512HCJQ	0.021 ms * +63%

* ... smaller is better

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> Notebookcheck中文版（NBC中国） > 新闻 > 新闻档案 > 新闻档案 2022 11 > 雷克沙NM800 Pro显示了对PCIe4 x4 SSD使用散热器的重要性

Allen Ngo, 2022-11-11 (Update: 2022-11-11)