Ryzen 7 5800X3D vs Core i9-12900K
The Ryzen 7 5800X3D is about 8% faster than the Core i9-12900K in games where the processor sets the frame rate, in our estimates. Below: FPS in popular games, the specs side by side, and the graphics cards that suit each.
Updated · By Muhammad Muzammil
The short answer
In a typical one of 8 popular games at 1080p High with an RTX 5090, the Ryzen 7 5800X3D gets about 164 FPS and the Core i9-12900K about 152 FPS. With a slower graphics card, or at 1440p and 4K, the card sets the FPS more often and the gap gets smaller.
The Ryzen 7 5800X3D uses the AM4 socket and the Core i9-12900K uses LGA1700, so they need different motherboards. The Ryzen 7 5800X3D takes DDR4 memory and the Core i9-12900K takes DDR4/DDR5. Cores and threads: 8 / 16 on the Ryzen 7 5800X3D, 16 / 24 on the Core i9-12900K. Neither comes with a cooler, so budget for one.
Ryzen 7 5800X3D vs Core i9-12900K: FPS in popular games
Estimated FPS at 1080p High with 32 GB RAM (Ryzen 7 5800X3D / Core i9-12900K in each column). With an RTX 5090, the processor sets the frame rate wherever it can. Values above 500 show as 500+. See FPS for your own PC.
| Game | RTX 5090 | RTX 5060 |
|---|---|---|
| Counter-Strike 2 | 375 / 348 | 305 / 305 |
| Valorant | 413 / 382 | 413 / 382 |
| Fortnite | 180 / 167 | 164 / 164 |
| Apex Legends | 165 / 153 | 165 / 153 |
| Marvel Rivals | 128 / 118 | 89 / 89 |
| Call of Duty: Black Ops 6 | 164 / 152 | 110 / 110 |
| Cyberpunk 2077 | 132 / 122 | 104 / 104 |
| Baldur's Gate 3 | 134 / 124 | 134 / 124 |
With a mid-range graphics card such as an RTX 5060, the card sets the frame rate in more games, so the difference between the two processors is smaller.
Estimated FPS. Numbers come from the FPSVibe model, not measured benchmarks. How we estimate
Specs side by side
| Spec | Ryzen 7 5800X3D | Core i9-12900K |
|---|---|---|
| Cores / threads | 8 / 16 | 16 / 24 |
| Boost clock | up to 4.5 GHz | up to 5.2 GHz |
| L3 cache | 96 MB | 30 MB |
| Socket | AM4 | LGA1700 |
| Memory | DDR4-3200 | DDR5-4800 / DDR4-3200 |
| Integrated graphics | None | Intel UHD 770 |
| Cooler in the box | Not included | Not included |
| Power (TDP) | 105 W | 125 W |
| Launch year | 2022 | 2021 |
| Gaming index (est.) | 75 | 69.5 |
Gaming index: estimated CPU-bound gaming performance at 1080p, Ryzen 7 9800X3D = 100. Memory and box cooler as listed on AMD and Intel product pages; where we couldn't confirm a value there, check the manufacturer's page.
Graphics cards that pair well with the Ryzen 7 5800X3D
Graphics cards that pair well with the Core i9-12900K
Check a build in the bottleneck calculator
Ryzen 7 5800X3D vs Core i9-12900K FAQs
Is the Ryzen 7 5800X3D better than the Core i9-12900K for gaming?
The Ryzen 7 5800X3D is about 8% faster than the Core i9-12900K in games where the processor sets the frame rate, in our estimates. In a typical one of 8 popular games at 1080p High with an RTX 5090, the Ryzen 7 5800X3D gets about 164 FPS and the Core i9-12900K about 152 FPS.
Ryzen 7 5800X3D or Core i9-12900K: which gets more FPS in Counter-Strike 2?
With an RTX 5090 at 1080p High, the Ryzen 7 5800X3D gets about 375 FPS and the Core i9-12900K about 348 FPS in our estimates.
Do the Ryzen 7 5800X3D and Core i9-12900K use the same motherboard?
No. The Ryzen 7 5800X3D uses the AM4 socket and the Core i9-12900K uses LGA1700, so you need a different motherboard to switch. They also take different memory: DDR4 vs DDR4/DDR5.
Do the Ryzen 7 5800X3D and Core i9-12900K come with a cooler?
No. Neither comes with a cooler in the box, so you need to buy one.
Do the Ryzen 7 5800X3D and Core i9-12900K have integrated graphics?
Only the Core i9-12900K does (Intel UHD 770). The Ryzen 7 5800X3D needs a graphics card to get a picture.
What graphics card should I pair with the Ryzen 7 5800X3D or the Core i9-12900K?
Balanced picks in our estimates: for the Ryzen 7 5800X3D, RX 9070, RTX 5070, RX 9070 GRE, RTX 5060 Ti 16GB; for the Core i9-12900K, RTX 5070, RX 9070 GRE, RTX 5060 Ti 16GB, RX 9060 XT 16GB.