Ryzen 9 9900X vs Core i9-9900K
Short answer: which is best?
Ryzen 9 9900X is 28 % stronger than Core i9-9900K. Ryzen 9 9900X ranks #9 of 45 measured processors at WhatFPS (11,384 CPU score over 3 verified runs). Core i9-9900K ranks #19 of 45 measured processors at WhatFPS (8,893 CPU score over 1 verified runs). The numbers are measured in 4 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Ryzen 9 9900X | Core i9-9900K |
|---|---|---|
| CPU score (the processor's own performance) | 11,384 | 8,893 |
| Best rig (GAMING — whole PC) | 15,624 | 8,453 |
| Integer (MT) | 8.1 Gop/s | 6.5 Gop/s |
| Single-thread (1T) | 0.88 Gop/s | 0.59 Gop/s |
| Draw calls/s (DX11) | 15,067,612 | 9,269,393 |
| Cores / threads | 6 / 12 | 8 / 16 |
| L3 cache | 64 MB | 16 MB |
What the numbers mean
The CPU score is the processor's own performance — that is what we rank on. GAMING is the whole rig's score in the best PC we measured the processor in, and leans heavily on the graphics card. A strong processor in a weak PC gets a low GAMING score without being worse. We show both and never mix them.
All numbers come from our benchmark suite: four hand-built 3D scenes written directly against the graphics APIs in Rust, the same load on every PC. The methodology is open at https://whatfps.com/metodik
All measurements for Ryzen 9 9900X · All measurements for Core i9-9900K