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RTX 4090的最佳电源是?

今天,我们将从各种海盗船电源(Power Supply Unit,PSU)中,找到最适用于NVIDIA GeForce RTX 4090的选择。考虑到高端显卡(GPU)的巨大电力需求和高价位,我们极为推荐高质量且高效率的电源。

在深入讨论之前,您应该知道您的系统需要达到一些最低限度的要求:

RTX 4090系统需求

  • PCIE 4.0 X 16插槽(提供最佳效能)
  • 850W或更高的电源供应
  • 最少提供三个8 PIN PCIE连接器及插头450W或更高的PCIE GEN 5电源线

所以,我们将从不同型号的RTX 4090的电力需求开始,先介绍挑选RTX 4090电源需要考虑的事项。

best psu for rtx 4090

RTX 4090电力需求

值得注意的是,并非所有 RTX 4090 显卡规格都一样,重要的是它们的电力需求不同。它们的耗电量会根据特定型号而有所差异,因此您必须知道您的RTX 4090 耗电量,据此来选择适合的电源。此外,短暂的电力峰值是常有的情况,最好选择规格较高的电源。

为此,表格列出了一些 RTX 4090 显卡及其TDP(Thermal Design Power,热设计功耗),以及建议的最低电源瓦数。

您应该注意列表并不完整,如果您的显示适配器不在列表中,请务必自行检查。您可以在使用手册或制造商网站上找到电源的瓦数建议及TDP信息。

Model TDP (Thermal Design Power) Minimum recommended PSU
NVIDIA GeForce RTX 4090 (Founder's Edition) 450W 850W
Zotac NVIDIA GeForce RTX 4090 24GB Trinity OC 450W 1000W
ASUS NVIDIA GeForce RTX 4090 24GB TUF Gaming 450W 850W
MSI NVIDIA GeForce RTX 4090 24GB SUPRIM X 320W 850W
Gigabyte AORUS NVIDIA GeForce RTX 4090 24GB MASTER 450W 1000W
ASUS NVIDIA GeForce RTX 4090 24GB ROG Strix OC 450W 1000W
MSI NVIDIA GeForce RTX 4090 24GB VENTUS 3X 24G OC 450W 850W
Gigabyte NVIDIA GeForce RTX 4090 24GB GAMING OC 450W 1000W

从这个列表中,您可以看到建议的电源和TDP不尽相同,有些只建议320W TDP和850W电源。尽管如此,我们今天还是着重1000W电源,因为它能提供较多应对瞬间峰值的空间,在升级电源之前也可为系统添加更多的零组件。我们也会纳入850W的选项,提供给那些不需任何额外瓦数的使用者。

RTX 4090的最佳全模块化ATX电源:海盗船RM1000x SHIFT

您最佳的全模块化选择是海盗船RM1000x SHIFT,它不但完全模块化,且连接线也是接在侧边而非尾端,让布线更简单、更整齐。它还具有Zero-RPM风扇模式,除非必要,否则风扇不会旋转,可让系统在低功耗时更为安静。如果您的系统规模特别庞大,它也有1200W规格可以选择。

RM1000x_SHIFT_07
RM1000x_SHIFT_09

海盗船RM1000x SHIFT规格

我们提供海盗船RM1000X SHIFT的规格给有技术专长的使用者,包含功率表和连接线配置。我们也在本页面上提供了其他电源的规格表。

CORSAIR RM1000X SHIFT power table
Rail +3.3V +5V +12V +5Vsb
Max current 20A 20A 83.3A 3.0A
Max combined wattage 150W 1000W 15W
1000W
CORSAIR RM1000x SHIFT cable configuration
Cable type Description Length Cable Quantity
Flat ATX CABLE 24-PIN (24) 610mm ± 10mm 1
Flat EPS/ATX12V CABLE 8-PIN (4+4) 650mm ± 10mm 2
Flat 12VHPWR Cable (12+4) 650mm ± 10mm 1
Flat PCIe CABLE 8-PIN (6+2) x2 750mm ± 10mm 2
Flat PCIe CABLE 8-PIN (6+2) 650mm ± 10mm 3
Flat SATA CABLE (4 SATA) 800mm ± 10mm 4
Flat PATA CABLE (4-PIN) 750mm ± 10mm 2

RTX 4090的最佳全模块化SFX电源:海盗船SF1000L

虽然RTX 4090的体积很大,但只要您使用的机箱有足够空间,仍然可以将其装进小型机箱里。事实上,我们的2000D AIRFLOW SFF机箱可以装得下多种型号的RTX 4090(只要该RTX 4090长度不超过365毫米),这代表我们于此必须纳入SFX电源,并且我们已选择的是海盗船SF1000L。

SF1000L_RENDER_02
SF1000L_RENDER_06

海盗船SF1000L规格

CORSAIR SF1000L power table
Rail +3.3V +5V +12V +5Vsb
Max current 20A 20A 83.3A 3.0A
Max combined wattage 150W 1000W 15W
1000W
CORSAIR SF1000L cable configuration
Cable type Description Length Cable Quantity
Flat ATX CABLE 24-PIN (24) 300mm ± 10mm 1
Flat EPS/ATX12V CABLE 8-PIN (4+4) 400mm ± 10mm 2
Flat 12VHPWR Cable (12+4) 400mm ± 10mm 1
Flat PCIe CABLE 8-PIN (6+2) x2 500mm ± 10mm 1
Flat PCIe CABLE 8-PIN (6+2) 400mm ± 10mm 3
Flat SATA CABLE (4 SATA - Right Angled) 445mm ± 10mm 1
Flat PATA CABLE (4-PIN) 750mm ± 10mm 1

RTX 4090的最佳超静音ATX电源:海盗船HX1000i

对许多计算机发烧友来说,让系统保持安静运作是最重要的,如果您想在有负载的情况下也能达到近乎无声的运作,海盗船HX1000i是最佳选择。和RM1000x SHIFT及SF1000L一样,它具有Zero-RPM风扇模式,在低负载下可以真正无声运作。但与其他电源不同的是,它采用磁浮风扇。这代表风扇和轴承几乎无接触,因此可达到接近零摩擦。更少的摩擦=更高转速和更低噪音。

HX1000i_03
HX1000i_09

海盗船HX1000i规格

CORSAIR HX1000i power table
Rail +3.3V +5V +12V +5Vsb
Max current 25A 25A 83.3A 3.0A
Max combined wattage 150W 999.6W 15W
1000W
CORSAIR HX1000i cable configuration
Cable type Description Length Cable Quantity
Flat (Sleeved) ATX CABLE 24-PIN (24) 610mm ± 10mm 1
Flat EPS/ATX12V CABLE 8-PIN (4+4) 650mm ± 10mm 2
Flat 12VHPWR Cable (12+4) 650mm ± 10mm 1
Flat PCIe CABLE 8-PIN (6+2) x2 775mm ± 10mm 2
Flat SATA CABLE (4 SATA) 800mm ± 10mm 2
Flat PATA CABLE (4-PIN) 750mm ± 10mm 2
Round USB Type-C to 10-1 Pin 525mm 1

RTX 4090的最佳850W电源:海盗船RM850E

并非每个人都需要额外的电力容量来进行未来升级,这很合理,因为这样做可以降低成本,此外,功率较低的电源通常尺寸也比较小,可以为储存装置腾出更多的空间,因为在很多时候,这些机箱的安装位置都靠近电源。更小尺寸的电源也可以让布线更简单,如果这对您来很不错,我们推荐海盗船RM850e全模块化电源

RM850e_RENDER_03
RM850e_RENDER_06
CORSAIR RM850e power table
Rail +3.3V +5V +12V +5Vsb
Max current 20A 20A 70.8A 3.0A
Max combined wattage 150W 850W 15W
850W
CORSAIR HX1000i cable configuration
Cable type Description Length Cable Quantity
Flat (Sleeved) ATX CABLE 24-PIN (24) 610mm ± 10mm 1
Flat EPS/ATX12V CABLE 8-PIN (4+4) 650mm ± 10mm 2
Flat 12VHPWR Cable (12+4) 650mm ± 10mm 1
Flat PCIe 8-Pin (6+2) 650mm ± 10mm 1
Flat PCIe CABLE 8-PIN (6+2) x2 750mm ± 10mm 2
Flat SATA CABLE (3 SATA) 800mm ± 10mm 2
Flat SATA CABLE (4 SATA) Right Angle 800mm ± 10mm 1
Flat PATA CABLE (4-PIN) 750mm ± 10mm 2

RTX 4090 PSU FAQS

So, those are our picks for the best PSU for the RTX 4090. However, now we're going to take a moment to answer some of the more common queries surrounding this GPU, our PSUs, and more.

How long is the warranty on a CORSAIR PSU?


All our PSUs come with a minimum of a 3-year warranty, with many holding 10-year warranties. You can find the warranty for each specific PSU on our support site.



What power cable does the RTX 4090 use?


Typically, RTX 4090 GPUs come with an adapter cable that takes three or four 8-pin connectors and combined them to the 12VHPWR 16-pin socket on the GPU itself. However, this is only necessary if you're using a PSU that isn't ATX 3.0 certified. All the PSUs we've recommended here have that certification, and thus include the 12VHPWR cable in the box, so you won't need to use the adapter that came with the GPU.



Are there still issues with the 12VHPWR connector?


Following the release of the 12VHPWR standard, there were some incidences of the connector melting, due to it not being fully-seated when connected. This is avoidable, just make sure the cable is fully connected at both ends, and avoid bending the connector during the cable management process. Our PCIe 5.0 12VHPWR GPU Power Bridge can help with that, allowing for neater cable management, and a lower likelihood of the cable being bent too much. (Just check it will work with your specific RTX 4090.)



What does the "80 Plus" symbol mean?


This is an industry-standard way ofvalidating the efficiency of a power supply. All our PSUs, including those on this list, carry a certification of Gold or higher.



Are all PSU cables compatible with all PSUs?


No. there are different standards and connector types at play here. This means you have to be very careful. Check out our compatibility matrix to make sure. Plugging the wrong type of cable into your PSU, or any other component in your system can have disastrous consequences.



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