Will the Core Ultra 9 285K bottleneck the RX 6950 XT?

No. At 1440p the RX 6950 XT is the limiting part, which is the normal state for a gaming PC. The Core Ultra 9 285K has headroom to spare.

What power supply do I need for a Core Ultra 9 285K and RX 6950 XT?

Estimated system load is about 685 W. A quality 1000 W unit leaves roughly 30% headroom for transient spikes.

Is this pair better at 1080p or 4K?

1080p: GPU-limited 12% (balanced). 1440p: GPU-limited 19% (balanced). 4K: GPU-limited 36% (GPU-bound (normal)).

PCPairs

Core Ultra 9 285K + RX 6950 XT: bottleneck check

19%

Balanced at 1440p.

CPU GPU

Well matched at 1440p. The RX 6950 XT is the slightly busier part, by about 19%.

By resolution

Resolution	Limiting part	Severity	Verdict
1080p	GPU	12%	balanced
1440p	GPU	19%	balanced
4K	GPU	36%	GPU-bound (normal)

The RX 6950 XT is the limiting part at every resolution, which is the healthy direction, and the gap is small enough that neither part is wasted. Upgrade the GPU first when you want more frames.

Specifications

Intel Core Ultra 9 285K
Cores / threads	24 / 24
Max boost	5.7 GHz
Socket	LGA1851
Max turbo power	250 W
Released	2024
Gaming index	84 / 100
Multi-core index	97 / 100

AMD Radeon RX 6950 XT
VRAM	16 GB
Board power	335 W
Released	2022
1080p index	52.6 / 100
1440p index	47 / 100
4K index	42.0 / 100

Power supply

CPU 250 W + GPU 335 W + about 100 W for motherboard, memory, storage and fans gives an estimated peak load of 685 W. We recommend a 1000 W unit (80 Plus Gold or better) so transient spikes from the graphics card stay inside the PSU's comfort zone. Try other pairs in the PSU calculator.

Upgrade paths

CPUs that remove the bottleneck

LGA1851

Cards that use the Core Ultra 9 285K fully

Best CPU for the RX 6950 XT Best GPU for the Core Ultra 9 285K RX 6950 XT PSU requirements

Same CPU, other cards

All

Same card, other CPUs

All

Indexes are relative estimates aggregated from published reviews; real results vary by game, settings, memory speed and drivers. Methodology.