Ryzen 7000 · data reviewed 2026-11-10

What PSU for the Ryzen 9 7950X3D?

Ryzen 9 7950X3D is 16 cores and 32 threads on AM5. Gaming plans it at 120 W (Default TDP). The power-limit profile uses 162 W (PPT, derived). With a Radeon RX 9070 XT, the gaming total is 481 W and the minimum size is 650 W.

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Same CPU, three graphics cards

Each row is two memory modules, one NVMe drive, and three fans. Only the GPU changes, so the difference between rows is the card plus nothing else.

WattWise results for the Ryzen 9 7950X3D
GPUBoard powerGaming loadMinimumBoth at the limit
GeForce RTX 5060145 W322 W450 W364 W · 500 W
Radeon RX 9070 XT304 W481 W650 W523 W · 700 W
GeForce RTX 5090575 W752 W1,000 W794 W · 1,000 W

How to read the two CPU numbers

AMD's public product page lists Default TDP. Stock Package Power Tracking (PPT) for this TDP class follows AMD's socket default of 1.35× TDP, rounded to the standard step (65W→88W, 105W→142W, 120W→162W, 170W→230W). PPT is a power limit, not a measurement of a game or a render.

Memory in this table is DDR5.

The GeForce RTX 5060 row is the small-card case: the CPU and the platform are a large share of the total. The GeForce RTX 5090 row is the flagship case: the graphics card dominates, and the CPU's base-versus-limit gap matters less until you render on every core.

Questions for this CPU

What PSU does a Ryzen 9 7950X3D need with a Radeon RX 9070 XT?

Gaming plan for the Ryzen 9 7950X3D: 120 W at its default tdp, 304 W for the Radeon RX 9070 XT at rated board power, and 57 W of platform allowance. The total is 481 W. Minimum size 650 W. Efficiency size 1,000 W.

How much does the Ryzen 9 7950X3D add when the GPU is small?

With a GeForce RTX 5060, the gaming total is 322 W and the minimum is 450 W. The same CPU with a GeForce RTX 5090 is 752 W, minimum 1,000 W. The CPU did not change. The graphics card did.

Should I size a Ryzen 9 7950X3D build for the package limit?

The power-limit profile with a Radeon RX 9070 XT is 523 W, minimum 700 W. That is both parts on their limits at once. PPT 162 W is marked derived. AMD's public product page lists Default TDP. Stock Package Power Tracking (PPT) for this TDP class follows AMD's socket default of 1.35× TDP, rounded to the standard step (65W→88W, 105W→142W, 120W→162W, 170W→230W). PPT is a power limit, not a measurement of a game or a render. Use it for a combined render. A GPU-bound game is the lower row.

Nearby CPUs

Sources

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