We compared two server CPUs: Intel Xeon E5 2680 v3 with 12 cores 2.5GHz and Intel Xeon E5 2666 v3 with 10 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Xeon E5 2680 v3 's Advantages
Larger L3 cache size (30MB vs 25MB)
Lower TDP (120W vs 135W)
Intel Xeon E5 2666 v3 's Advantages
Higher specification of memory (DDR4-2133 vs DDR3)