PSU calculator: how many watts does your PC need?

Pick your processor and graphics card. The calculator adds their official power figures (Intel: Maximum Turbo Power; AMD: TDP), 100 W for the rest of the PC and a 30% margin, then rounds up to a PSU size you can actually buy.

Ryzen 7 9800X3D + GeForce RTX 5070: 470 W at full load, so a 650 W PSU (750 W with room to upgrade).

How the calculator works

Graphics card: its maximum official power. NVIDIA calls it Total Graphics Power, AMD Typical Board Power and Intel Total Board Power.

Processor: on Intel, Maximum Turbo Power, which is what the chip really draws when it is pushed (the Base Power figure falls far short). On AMD, the official TDP.

The rest of the PC: 100 W for the motherboard, RAM, one or two drives and the stock fans, or 150 W with a liquid cooler, lots of fans or several drives. No brand publishes a single figure for this, so it is this site’s own estimate.

The calculator multiplies by 1.3 for the graphics card's power spikes, for aging and so the PSU works in its efficient range, and rounds up to the next size that is sold. If the card's maker asks for more, the maker wins.

Factory-overclocked partner cards can draw more than the reference model. If yours is one of them, check its own spec sheet and add the difference.

If your graphics card uses the 16-pin 12V-2x6 connector, a PSU with a native cable (ATX 3.1) avoids adapters.

Examples

Official power of each graphics card

ModelOfficial powerMaker's minimum PSUSource
NVIDIA GeForce RTX 5090575 W (Total Graphics Power)1000 Wmaker's page
NVIDIA GeForce RTX 5080360 W (Total Graphics Power)850 Wmaker's page
NVIDIA GeForce RTX 5070 Ti300 W (Total Graphics Power)750 Wmaker's page
NVIDIA GeForce RTX 5070250 W (Total Graphics Power)650 Wmaker's page
NVIDIA GeForce RTX 5060 Ti (16 GB / 8 GB)180 W (Total Graphics Power)600 Wmaker's page
NVIDIA GeForce RTX 5060145 W (Total Graphics Power)550 Wmaker's page
NVIDIA GeForce RTX 5050130 W (Total Graphics Power)550 Wmaker's page
NVIDIA GeForce RTX 4090450 W (Total Graphics Power)850 Wmaker's page
NVIDIA GeForce RTX 4080 SUPER320 W (Total Graphics Power)750 Wmaker's page
NVIDIA GeForce RTX 4080320 W (Total Graphics Power)750 Wmaker's page
NVIDIA GeForce RTX 4070 Ti SUPER285 W (Total Graphics Power)700 Wmaker's page
NVIDIA GeForce RTX 4070 Ti285 W (Total Graphics Power)700 Wmaker's page
NVIDIA GeForce RTX 4070 SUPER220 W (Total Graphics Power)650 Wmaker's page
NVIDIA GeForce RTX 4070200 W (Total Graphics Power)650 Wmaker's page
NVIDIA GeForce RTX 4060 Ti 16 GB165 W (Total Graphics Power)550 Wmaker's page
NVIDIA GeForce RTX 4060 Ti 8 GB160 W (Total Graphics Power)550 Wmaker's page
NVIDIA GeForce RTX 4060115 W (Total Graphics Power)550 Wmaker's page
NVIDIA GeForce RTX 3090350 W (Graphics Card Power)750 Wmaker's page
NVIDIA GeForce RTX 3080 (10 GB)320 W (Graphics Card Power)750 Wmaker's page
NVIDIA GeForce RTX 3070220 W (Graphics Card Power)650 Wmaker's page
NVIDIA GeForce RTX 3060 Ti200 W (Graphics Card Power)600 Wmaker's page
NVIDIA GeForce RTX 3060 (12 GB / 8 GB)170 W (Graphics Card Power)550 Wmaker's page
NVIDIA GeForce RTX 3050 (8 GB)130 W (Graphics Card Power)550 Wmaker's page
AMD Radeon RX 9070 XT304 W (Typical Board Power (Desktop))750 Wmaker's page
AMD Radeon RX 9070220 W (Typical Board Power (Desktop))650 Wmaker's page
AMD Radeon RX 9060 XT 16 GB160 W (Typical Board Power (Desktop))450 Wmaker's page
AMD Radeon RX 9060 XT 8 GB150 W (Typical Board Power (Desktop))450 Wmaker's page
AMD Radeon RX 7900 XTX355 W (Typical Board Power (Desktop))800 Wmaker's page
AMD Radeon RX 7900 XT315 W (Typical Board Power (Desktop))750 Wmaker's page
AMD Radeon RX 7900 GRE260 W (Typical Board Power (Desktop))not publishedmaker's page
AMD Radeon RX 7800 XT263 W (Typical Board Power (Desktop))700 Wmaker's page
AMD Radeon RX 7700 XT245 W (Typical Board Power (Desktop))700 Wmaker's page
AMD Radeon RX 7600 XT190 W (Typical Board Power (Desktop))600 Wmaker's page
AMD Radeon RX 7600165 W (Typical Board Power (Desktop))550 Wmaker's page
AMD Radeon RX 6700 XT230 W (Typical Board Power (Desktop))650 Wmaker's page
AMD Radeon RX 6650 XT180 W (Typical Board Power (Desktop))500 Wmaker's page
AMD Radeon RX 6600132 W (Typical Board Power (Desktop))450 Wmaker's page
Intel Arc B580190 W (Total Board Power (TBP))600 Wmaker's page
Intel Arc B570150 W (Total Board Power (TBP))not publishedmaker's page
Intel Arc A770 16 GB225 W (Total Board Power (TBP))not publishedmaker's page
Intel Arc A750225 W (Total Board Power (TBP))not publishedmaker's page

Official power of each processor

ModelOfficial powerWhat the figure isSource
AMD Ryzen 9 9950X3D170 WDefault TDPmaker's page
AMD Ryzen 9 9950X170 WDefault TDPmaker's page
AMD Ryzen 9 9900X120 WDefault TDPmaker's page
AMD Ryzen 7 9800X3D120 WDefault TDPmaker's page
AMD Ryzen 7 9700X65 WDefault TDPmaker's page
AMD Ryzen 5 9600X65 WDefault TDPmaker's page
AMD Ryzen 5 960065 WDefault TDPmaker's page
AMD Ryzen 9 7950X170 WDefault TDPmaker's page
AMD Ryzen 7 7800X3D120 WDefault TDPmaker's page
AMD Ryzen 7 7700X105 WDefault TDPmaker's page
AMD Ryzen 7 770065 WDefault TDPmaker's page
AMD Ryzen 5 7600X105 WDefault TDPmaker's page
AMD Ryzen 5 760065 WDefault TDPmaker's page
AMD Ryzen 7 8700G65 WDefault TDPmaker's page
AMD Ryzen 5 8600G65 WDefault TDPmaker's page
AMD Ryzen 7 5800X3D105 WDefault TDPmaker's page
AMD Ryzen 7 5700X3D105 WTDPmaker's page
AMD Ryzen 7 5800X105 WDefault TDPmaker's page
AMD Ryzen 7 5700X65 WTDPmaker's page
AMD Ryzen 5 5600X65 WDefault TDPmaker's page
AMD Ryzen 5 560065 WTDPmaker's page
AMD Ryzen 5 550065 WTDPmaker's page
Intel Core Ultra 9 285K250 WMaximum Turbo Powermaker's page
Intel Core Ultra 7 265K250 WMaximum Turbo Powermaker's page
Intel Core Ultra 5 245K159 WMaximum Turbo Powermaker's page
Intel Core Ultra 5 225121 WMaximum Turbo Powermaker's page
Intel Core i9-14900K253 WMaximum Turbo Powermaker's page
Intel Core i7-14700K253 WMaximum Turbo Powermaker's page
Intel Core i5-14600K181 WMaximum Turbo Powermaker's page
Intel Core i5-14400F148 WMaximum Turbo Powermaker's page
Intel Core i3-14100F110 WMaximum Turbo Powermaker's page
Intel Core i9-13900K253 WMaximum Turbo Powermaker's page
Intel Core i7-13700K253 WMaximum Turbo Powermaker's page
Intel Core i5-13600K181 WMaximum Turbo Powermaker's page
Intel Core i5-13400F148 WMaximum Turbo Powermaker's page
Intel Core i7-12700K190 WMaximum Turbo Powermaker's page
Intel Core i5-12600K150 WMaximum Turbo Powermaker's page
Intel Core i5-12400F117 WMaximum Turbo Powermaker's page

Figures read on each maker's website on September 29, 2026. They are reviewed every three months.

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