Intel Core i7-8700K vs Intel Xeon E5-2666 v3

Core i7-8700K vs Xeon E5-2666 v3 comparison

Our benchmark analysis concludes that the Xeon E5-2666 v3 performs better than the Core i7-8700K. Despite this, the Core i7-8700K has the advantage in our gaming benchmark.

With info from our database, we find that the Xeon E5-2666 v3 has significantly more cores with 10 cores whereas the Core i7-8700K has 6 cores. It also has more threads than the Core i7-8700K. Our comparison shows that the Core i7-8700K has a slightly higher clock speed compared to the Xeon E5-2666 v3. The cache sizes of these CPUs are different. Indeed, the Xeon E5-2666 v3 has significantly more L2 cache than the Core i7-8700K. The Xeon E5-2666 v3 also has significantly more L3 cache.

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. Indeed, the Core i7-8700K has more threads than cores. Each physical core is split into multiple threads.