Intel Xeon E5-2643 vs Intel Xeon E5-2660 v3

Xeon E5-2643 vs Xeon E5-2660 v3 comparison

In our benchmarks, the Xeon E5-2660 v3 beats the Xeon E5-2643 in overall performance. Despite this, the Xeon E5-2643 has the advantage in our gaming benchmark.

When comparing core counts for these CPUs, we notice that the Xeon E5-2660 v3 has significantly more cores with 10 cores compared to the Xeon E5-2643 that has 4 cores. It also has more threads than the Xeon E5-2643. These CPUs have different clock speeds. Indeed, the Xeon E5-2643 has a slightly higher clock speed compared to the Xeon E5-2660 v3. Also, the Xeon E5-2643 has a slightly higher turbo speed. The Xeon E5-2660 v3 outputs less heat than Xeon E5-2643 thanks to a 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 Xeon E5-2643 has more threads than cores. Each physical core is split into multiple threads.