PCPairs

Core i5-14400F + RTX 3070: bottleneck check

17%

Balanced at 1440p.

Well matched at 1440p. The RTX 3070 is the slightly busier part, by about 17%.

By resolution

ResolutionLimiting partSeverityVerdict
1080pGPU 9%balanced
1440pGPU 17%balanced
4KGPU 35%GPU-bound (normal)

The RTX 3070 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 i5-14400F
Cores / threads10 / 16
Max boost4.7 GHz
SocketLGA1700
Maximum turbo power (MTP)148 W Intel's published maximum sustained turbo power, above its base power; the PSU estimate uses it, so it errs high · Intel ARK
Released2024
Gaming index72 / 100
Multi-core index60 / 100
NVIDIA GeForce RTX 3070
VRAM8 GB
Board power220 W
Released2020
1080p index39.0 / 100
1440p index33 / 100
4K index27.9 / 100

Power supply

The RTX 3070 measured 232 W average while gaming (283 W highest 20 ms spike, TechPowerUp). With the Core i5-14400F at its maximum turbo power of 148 W and about 75 W for the rest of the system, the sustained load is about 455 W. A 650 W unit is the safe choice. Details on the RTX 3070 PSU page or try other pairs in the PSU calculator.

Upgrade paths

Best CPU for the RTX 3070 Best GPU for the Core i5-14400F RTX 3070 PSU requirements

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