BottleneckScore the honest PC upgrade advisor

Does the Core i5-8400 bottleneck the RX 9070 XT?

Slight CPU bottleneck — not dramatic

At 1440p with 16 GB of RAM and an SSD, this pairing scores 52/100. The CPU is the limiting side (CPU 43 vs GPU 63).

52/100
Build score for
Core i5-8400 + RX 9070 XT

The pairing

CPUCore i5-8400 — score 43
GPURX 9070 XT — score 63
BottleneckCPU (léger)
SocketLGA 1151

Best-value upgrade

Best value
Ryzen 5 7600X
+20% performance · from 267 € · build score 52 → 63

Prices are live EU retail (EUR), refreshed weekly. US and UK support is coming soon.

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This page is generated by the same deterministic engine as the interactive tool: real benchmark data, usage-weighted, with RAM and storage multipliers. Change the usage profile, RAM, storage or budget to get a result tailored to your actual build.