PCPairs

Core i9-12900K + RX 6800: bottleneck check

20%

Balanced at 1440p.

Well matched at 1440p. The RX 6800 is the slightly busier part, by about 20%.

By resolution

ResolutionLimiting partSeverityVerdict
1080pGPU 13%balanced
1440pGPU 20%balanced
4KGPU 38%GPU-bound (normal)

The RX 6800 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 i9-12900K
Cores / threads16 / 24
Max boost5.2 GHz
SocketLGA1700
Maximum turbo power (MTP)241 W Intel's published maximum sustained turbo power, above its base power; the PSU estimate uses it, so it errs high · Intel ARK
Released2021
Gaming index78 / 100
Multi-core index80 / 100
AMD Radeon RX 6800
VRAM16 GB
Board power250 W
Released2020
1080p index43.0 / 100
1440p index37 / 100
4K index31.9 / 100

Power supply

The RX 6800 measured 235 W average while gaming (344 W highest 20 ms spike, TechPowerUp). With the Core i9-12900K at its maximum turbo power of 241 W and about 75 W for the rest of the system, the sustained load is about 551 W. A 750 W unit is the safe choice. Details on the RX 6800 PSU page or try other pairs in the PSU calculator.

Upgrade paths

Cards that use the Core i9-12900K fully

Best CPU for the RX 6800 Best GPU for the Core i9-12900K RX 6800 PSU requirements

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