Intel Core i7-5820K vs Intel Xeon E5-2670 v3

Core i7-5820K vs Xeon E5-2670 v3 specs and performance

Our benchmark analysis concludes that the Xeon E5-2670 v3 performs better than the Core i7-5820K. Despite this, the Core i7-5820K has the advantage in our gaming benchmark.

When comparing core counts for these CPUs, we notice that the Xeon E5-2670 v3 has significantly more cores with 12 cores compared to the Core i7-5820K that has 6 cores. It also has more threads than the Core i7-5820K. These CPUs have different clock speeds. Indeed, the Core i7-5820K has a significantly higher clock speed compared to the Xeon E5-2670 v3. Also, the Core i7-5820K has a slightly higher turbo speed. The Xeon E5-2670 v3 outputs less heat than Core i7-5820K 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 Core i7-5820K has more threads than cores. Each physical core is split into multiple threads.