Intel Core i5-10400 vs Intel Xeon E5-2666 v3

Core i5-10400 vs Xeon E5-2666 v3 specs and performance

In our benchmarks, the Xeon E5-2666 v3 beats the Core i5-10400 in overall performance. Despite this, the Core i5-10400 has the advantage in our gaming benchmark.

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 Core i5-10400 that has 6 cores. It also has more threads than the Core i5-10400. Our comparison shows that the Xeon E5-2666 v3 has a slightly higher clock speed compared to the Core i5-10400. In terms of cache, the Xeon E5-2666 v3 has significantly more L2 cache when compared to the Core i5-10400. The Xeon E5-2666 v3 also has significantly more L3 cache.

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 i5-10400 has more threads than cores. Each physical core is split into multiple threads.