AMD Ryzen 9 7900X vs Ryzen 9 5900X: Which should you buy for your next Pc build? The Ryzen 9 7900X uses Zen 4 (Raphael) architecture with socket AM5. According to AMD CEO Dr. Lisa Su, IPC increases are up to 13% over the Zen 3 CPUs architecture.
Both CPUs were already pricey since they are high-end models, however, the latest Ryzen 9 7900X requires a new AM5 motherboard and DDR5 memory which further add to its cost.
See Also: AMD Ryzen 9 7950X vs Ryzen 9 5950X: Should You Upgrade?
See Also: AMD Ryzen 5 7600X vs Ryzen 5 5600X: Which is Better?
Price and Availability
The latest AMD Ryzen 9 7900X was announced on August 29th, 2022 and it is priced at $549. It was at this similar price that the Ryzen 9 5900X was launched on November 5th, 2020. However, since the release of the Ryzen 7000 series, you can now find the Ryzen 9 5900X selling for a $379 discount price.
In terms of their availability, the Ryzen 9 5900X is widely available for purchase. While its successor, the newly announced Ryzen 9 5900X will start selling on September 27th, 2022. You can use the box at the bottom of this post to purchase either of these CPUs.
See Also: AMD EXPO Technology for Ryzen 7000 Series is here
Socket Compatibility
Anyone who is buying the AMD Ryzen 9 7900X will have more money to spend. This is because the Ryzen 9 7900X vs Ryzen 9 5900X belongs to different CPU sockets. The former belongs to socket AM5, and the latter to socket AM4. In order words, the newer Ryzen 9 7900X won’t be compatible with the old AM4 socket motherboard.
You’ll have to upgrade your motherboard to AM5 and memory to DDR5 before you can make use of the Ryzen 9 7900X.
See Also: AMD Ryzen 9 7900X Price and Availability
Performance
These two CPUs have the same 12-Core and 24-Thread counts. However, the latest Ryzen 9 7900X has a higher base and boost clock frequency of 4.7 GHz and 5.6 GHz respectively, making it faster than the Ryzen 9 5900X.
| Specs | Ryzen 9 7900X | Ryzen 9 5900X |
| Cores | 12 | 12 |
| Threads | 24 | 24 |
| Base Clock | 4.7GHz | 3.7GHz |
| Boost Clock | 5.6GHz | 4.8GHz |
| L3 Cache | 76MP | 64MB |
| Default TDP | 170W | 105W |
| CPU Socket | AM5 | AM4 |
See Also: AMD Ryzen 7 5800X3D vs Ryzen 7 5800X: Which one’s better?
Comparing the performance between the two CPUs ends in the favor of the latest Ryzen 9 7900X. On Geekbench, the Ryzen 9 7900X scored 2250 points in a single-core test, while the 5900X had 1670 points in a single-core test. Making the 7900X up to 34% faster than the 5900X.
Gamers would also benefit from the AMD EXPO technology that helps to improve gaming performance by 11% on all Ryzen 7000 series CPUs. Additionally, all of the Ryzen 7000 series CPUs come equipped with an RDNA 2-based iGPU and larger cache capacity too.
See Also: AMD Ryzen 7 7700X Price and Availability
AMD Ryzen 9 7900X vs Ryzen 9 5900X: Verdict
The AMD Ryzen 9 7900X vs Ryzen 9 5900X comparison has proven the that latest Zen 4 CPUs are superior to the predecessors with Zen 3 architecture. The AMD Ryzen 9 7900X has a larger cache capacity, higher base and boost clock speeds, and supports AMD EXPO Technology that enhances the gaming experience by 11% over the Zen 3 CPU.
| AMD Ryzen 9 7900X | Price |
| Buy on Amazon EUR | €689.99 |
| Buy on Amazon UK | £599.99 |
| Ryzen 9 5900X | Price |
| Buy on Amazon | $498.96 |
| Buy on Amazon UK | £434.98 |
