The Ryzen 9 9900X3D is about 9% faster than the Ryzen 9 7900X3D in our estimate.
The Ryzen 9 9900X3D is about 9% faster than the Ryzen 9 7900X3D in our estimate.
| Ryzen 9 9900X3D | Ryzen 9 7900X3D | |
|---|---|---|
| Gaming index | 96 | 88 |
| Cores / threads | 12 / 24 | 12 / 24 |
| Max boost | 5.5 GHz | 5.6 GHz |
| Power (TDP) | 120 W | 120 W |
| Socket | AM5 | AM5 |
| Release year | 2025 | 2023 |
| Launch price | $599 | $599 |
| Performance per $100 (launch) | 16.0 | 14.7 |
On our gaming index the Ryzen 9 9900X3D scores 96 and the Ryzen 9 7900X3D scores 88, about 9% faster for gaming. That gap is small and mostly shows up at 1080p with a very fast graphics card.
The Ryzen 9 9900X3D has 12 cores and 24 threads, and the Ryzen 9 7900X3D has 12 cores and 24 threads. Core counts are the same, so cache size and clock speed decide the difference. Boost clocks are 5.5 GHz and 5.6 GHz.
Both chips use the AM5 socket, so they fit the same motherboards. You can swap one for the other without changing the board.
Rated power is 120 W for the first and 120 W for the second. That is close enough that cooling needs will be similar.
At launch the Ryzen 9 9900X3D cost $599 and the Ryzen 9 7900X3D $599, which gives 16.0 and 14.7 points of gaming performance per $100. Today's prices will differ.
At 1080p the Ryzen 9 9900X3D can feed a card up to the GeForce RTX 5080 before it holds the card back by more than 10 percent. The Ryzen 9 7900X3D reaches the GeForce RTX 5080. Both chips are in the same range for graphics card pairing.
Choose the Ryzen 9 9900X3D if you want the faster gaming chip and the same or more cores. Choose the Ryzen 9 7900X3D if you would rather spend the difference on a graphics card, which does more for frame rates in most games.
The Ryzen 9 9900X3D is about 9% faster than the Ryzen 9 7900X3D in our estimate.
If your graphics card is already the limit in your games, a faster processor adds little. Use the bottleneck calculator to check your own pairing.
Updated October 3, 2026