Will the Core Ultra 7 265K bottleneck the RTX 3070 Ti?

No. At 1440p the RTX 3070 Ti is the limiting part, which is the normal state for a gaming PC. The Core Ultra 7 265K has headroom to spare.

What power supply do I need for a Core Ultra 7 265K and RTX 3070 Ti?

Estimated system load is about 640 W. A quality 850 W unit leaves roughly 30% headroom for transient spikes.

Is this pair better at 1080p or 4K?

1080p: GPU-limited 16% (balanced). 1440p: GPU-limited 23% (GPU-bound (normal)). 4K: GPU-limited 40% (GPU-bound (normal)).

PCPairs

Core Ultra 7 265K + RTX 3070 Ti: bottleneck check

23%

GPU-limited at 1440p. GPU-bound (normal).

CPU GPU

The RTX 3070 Ti is the part working hardest at 1440p, which is what you want. The Core Ultra 7 265K keeps about 23% in reserve.

By resolution

Resolution	Limiting part	Severity	Verdict
1080p	GPU	16%	balanced
1440p	GPU	23%	GPU-bound (normal)
4K	GPU	40%	GPU-bound (normal)

The RTX 3070 Ti 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 7 265K
Cores / threads	20 / 20
Max boost	5.5 GHz
Socket	LGA1851
Max turbo power	250 W
Released	2024
Gaming index	80 / 100
Multi-core index	90 / 100

NVIDIA GeForce RTX 3070 Ti
VRAM	8 GB
Board power	290 W
Released	2021
1080p index	42.0 / 100
1440p index	36 / 100
4K index	30.9 / 100

Power supply

CPU 250 W + GPU 290 W + about 100 W for motherboard, memory, storage and fans gives an estimated peak load of 640 W. We recommend a 850 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 7 265K fully

Best CPU for the RTX 3070 Ti Best GPU for the Core Ultra 7 265K RTX 3070 Ti 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.