AMD Phenom II X4 945 vs AMD FX-870K

Phenom II X4 945 vs FX-870K specs and performance

In our benchmarks, the Phenom II X4 945 beats the FX-870K in overall performance. Despite this, the FX-870K has the advantage in our gaming benchmark.

With info from our database, we find that the Phenom II X4 945 has significantly more cores with 4 cores whereas the FX-870K has 2 cores. But they both have the same number of threads. These CPUs have different clock speeds. Indeed, the FX-870K has a slightly higher clock speed compared to the Phenom II X4 945. In terms of cache, the FX-870K has significantly more L2 cache when compared to the Phenom II X4 945

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. For instance, the Phenom II X4 945 has the same number of threads as cores. This means the the CPU does not support hyperthreading.