Will the Core i5-12600K bottleneck the RTX 4070 Ti Super?

Only slightly: at 1440p the model puts the Core i5-12600K about 2% short of keeping the RTX 4070 Ti Super fully fed, which is within the balanced band. The gap grows at 1080p and closes at 4K. This is a model estimate from performance indexes, not a measured FPS loss.

What power supply do I need for a Core i5-12600K and RTX 4070 Ti Super?

Sustained gaming load is about 519 W using the RTX 4070 Ti Super's measured draw. A 750 W unit is the safe choice; a good-quality 650 W unit also covers it.

Is this pair better at 1080p or 4K?

1080p: CPU-limited 10% (balanced). 1440p: CPU-limited 2% (balanced). 4K: GPU-limited 19% (balanced).

Core i5-12600K + RTX 4070 Ti Super: bottleneck check

Evenly matched at 1440p.

CPU GPU

Neither part waits on the other at 1440p. This is as balanced as a pairing gets.

By resolution

Resolution	Limiting part	Severity	Verdict
1080p	CPU	10%	balanced
1440p	CPU	2%	balanced
4K	GPU	19%	balanced

This is the classic pattern: at 1080p the Core i5-12600K is the limit (10%), while at 4K the RTX 4070 Ti Super takes over (19% GPU-limited). If you play at 1080p on a high-refresh monitor, a faster CPU is the upgrade that matters; at 1440p or 4K this pair is already well matched.

Specifications

Intel Core i5-12600K
Cores / threads	10 / 16
Max boost	4.9 GHz
Socket	LGA1700
Maximum turbo power (MTP)	150 W Intel's published maximum sustained turbo power, above its base power; the PSU estimate uses it, so it errs high · Intel ARK
Released	2021
Gaming index	72 / 100
Multi-core index	62 / 100

NVIDIA GeForce RTX 4070 Ti Super
VRAM	16 GB
Board power	285 W
Released	2024
1080p index	61.1 / 100
1440p index	56 / 100
4K index	51.3 / 100

Power supply

The RTX 4070 Ti Super measured 294 W average while gaming (320 W highest 20 ms spike, TechPowerUp). With the Core i5-12600K at its maximum turbo power of 150 W and about 75 W for the rest of the system, the sustained load is about 519 W. A 750 W unit is the safe choice; a good-quality 650 W unit also covers the measured draw. Details on the RTX 4070 Ti Super PSU page or try other pairs in the PSU calculator.

Upgrade paths

CPUs that remove the bottleneck

LGA1700

Cards that use the Core i5-12600K fully

Best CPU for the RTX 4070 Ti Super Best GPU for the Core i5-12600K RTX 4070 Ti Super 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.