Intel Core i7-3820 vs AMD Ryzen 9 7900X

Core i7-3820 vs Ryzen 9 7900X specs and performance

Our benchmark analysis concludes that the Ryzen 9 7900X performs better than the Core i7-3820. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-3820 in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Ryzen 9 7900X has significantly more cores than the Core i7-3820. Indeed, the Ryzen 9 7900X has 12 cores compared to 4 cores found in the Core i7-3820. It also has more threads than the Core i7-3820. Our comparison shows that the Ryzen 9 7900X has a slightly higher clock speed compared to the Core i7-3820. Also, the Ryzen 9 7900X has a significantly higher turbo speed. A Core i7-3820 CPU outputs less heat than a Ryzen 9 7900X CPU because of its slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. Indeed, the Core i7-3820 has more threads than cores. Each physical core is split into multiple threads.