AMD Athlon II X4 640 vs AMD FX-870K

Athlon II X4 640 vs FX-870K specs and performance

In our benchmarks, the Athlon II X4 640 beats the FX-870K in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the FX-870K in all gaming tests too.

With info from our database, we find that the Athlon II X4 640 has significantly more cores with 4 cores whereas the FX-870K has 2 cores. But they both have the same number of threads. Our comparison shows that the FX-870K has a slightly higher clock speed compared to the Athlon II X4 640. The info from our database shows that the FX-870K has more L2 cache than the Athlon II X4 640

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. For instance, the Athlon II X4 640 has the same number of threads as cores. This means the the CPU does not support hyperthreading.