Intel Xeon E5-2643 v2 vs Intel Xeon E5-2666 v3

Xeon E5-2643 v2 vs Xeon E5-2666 v3 comparison

Our benchmark analysis concludes that the Xeon E5-2666 v3 performs better than the Xeon E5-2643 v2. Furthermore, our gaming benchmark shows that it also outperforms the Xeon E5-2643 v2 in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Xeon E5-2666 v3 has significantly more cores with 10 cores compared to the Xeon E5-2643 v2 that has 6 cores. It also has more threads than the Xeon E5-2643 v2. These CPUs have different clock speeds. Indeed, the Xeon E5-2643 v2 has a slightly higher clock speed compared to the Xeon E5-2666 v3.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Xeon E5-2643 v2 has more threads than cores. Each physical core is split into multiple threads.