Processors comparison
Ryzen 7 9800X3D vs Ryzen 9 7900X
Specs, platform, power, size and UK prices side by side. Every value comes from the product listing; anything we don't hold is marked unknown.
Key differences
- Both use the AM5 socket. Check a motherboard's CPU support list before swapping one for the other; older boards can need a BIOS update.
- The Ryzen 7 9800X3D has 8 cores / 16 threads; the Ryzen 9 7900X has 12 cores / 24 threads.
- The Ryzen 9 7900X boosts to 5.6 GHz, 0.4 GHz higher than the Ryzen 7 9800X3D.
- The Ryzen 7 9800X3D is rated at 120 W TDP against 170 W, so it is easier to cool and puts less load on the power supply.
- The Ryzen 9 7900X is £6.53 cheaper at its lowest listed new price (£335.47 against £342.00).
Performance
We don't have measured benchmark results for these parts yet, and we don't publish estimated scores. Specs like core count, clock speed and video memory are a guide, not a measure of speed in games or apps.
Specifications
| Specification | Ryzen 7 9800X3D | Ryzen 9 7900X |
|---|---|---|
| Platform | ||
| SocketDecides which motherboards the processor fits. | AM5 | AM5 |
| Memory support | DDR5 | DDR5 |
| Architecture | Zen 5 | Zen 4 |
| Series | AMD Ryzen 7 | AMD Ryzen 9 |
| Cores and clocks | ||
| Cores | 8 | 12Higher |
| Threads | 16 | 24Higher |
| Max boost clock | 5.2 GHz | 5.6 GHzHigher |
| Power and cooling | ||
| Rated TDPThe maker's thermal design rating, not measured power draw. | 120 W | 170 W |
| Cooler in the box | No | No |
| Features | ||
| Integrated graphicsWithout it you need a graphics card to get a picture. | Yes | Yes |
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