Intel Core i7-975 vs Intel Xeon E3-1220

Core i7-975 vs Xeon E3-1220 specs and performance

Our benchmark analysis concludes that the Core i7-975 performs better than the Xeon E3-1220. Despite this, the Xeon E3-1220 has the advantage in our gaming benchmark.

When comparing these CPUs we notice that they have the same number of cores but the Core i7-975 has more threads. These CPUs have different clock speeds. Indeed, the Core i7-975 has a slightly higher clock speed compared to the Xeon E3-1220. Also, the Core i7-975 has a slightly higher turbo speed. The Xeon E3-1220 outputs less heat than Core i7-975 thanks to a significantly 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 i7-975 has more threads than cores. Each physical core is split into multiple threads.