PCPairs

Core i9-14900K + RTX 4080 Super: bottleneck check

10%

Balanced at 1440p.

Well matched at 1440p. The RTX 4080 Super is the slightly busier part, by about 10%.

By resolution

ResolutionLimiting partSeverityVerdict
1080pGPU 3%balanced
1440pGPU 10%balanced
4KGPU 29%GPU-bound (normal)

The RTX 4080 Super 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 i9-14900K
Cores / threads24 / 32
Max boost6.0 GHz
SocketLGA1700
Maximum turbo power (MTP)253 W Intel's published maximum sustained turbo power, above its base power; the PSU estimate uses it, so it errs high · Intel ARK
Released2023
Gaming index87 / 100
Multi-core index95 / 100
NVIDIA GeForce RTX 4080 Super
VRAM16 GB
Board power320 W
Released2024
1080p index68.4 / 100
1440p index64 / 100
4K index59.9 / 100

Power supply

The RTX 4080 Super measured 302 W average while gaming (341 W highest 20 ms spike, TechPowerUp). With the Core i9-14900K at its maximum turbo power of 253 W and about 75 W for the rest of the system, the sustained load is about 630 W. A 850 W unit is the safe choice. Details on the RTX 4080 Super PSU page or try other pairs in the PSU calculator.

Upgrade paths

Cards that use the Core i9-14900K fully

Best CPU for the RTX 4080 Super Best GPU for the Core i9-14900K RTX 4080 Super PSU requirements

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