AMD Ryzen 9 5900X vs AMD Phenom II X4 945

Ryzen 9 5900X vs Phenom II X4 945 specs and performance

According to the hardwareDB Benchmark tool, the Ryzen 9 5900X is faster than the Phenom II X4 945. Furthermore, our gaming benchmark shows that it also outperforms the Phenom II X4 945 in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Ryzen 9 5900X has significantly more cores than the Phenom II X4 945. Indeed, the Ryzen 9 5900X has 12 cores compared to 4 cores found in the Phenom II X4 945. It also has more threads than the Phenom II X4 945. These CPUs have different clock speeds. Indeed, the Ryzen 9 5900X has a slightly higher clock speed compared to the Phenom II X4 945. In terms of cache, the Ryzen 9 5900X has significantly more L2 cache when compared to the Phenom II X4 945. The Ryzen 9 5900X also has significantly more L3 cache.

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 Ryzen 9 5900X has more threads than cores. Each physical core is split into multiple threads.