Intel Xeon X5647 vs AMD Custom 0405

Xeon X5647 vs Custom 0405 benchmarks

In our benchmarks, the Xeon X5647 beats the Custom 0405 in overall performance. Despite this, the Custom 0405 has the advantage in our gaming benchmark.

When comparing these CPUs we notice that they have the same number of cores and the same number of threads. These CPUs have different clock speeds. Indeed, the Xeon X5647 has a slightly higher clock speed compared to the Custom 0405. The cache sizes of these CPUs are different. Indeed, the Custom 0405 has significantly more L2 cache than the Xeon X5647. Despite this, the Xeon X5647 has significantly more L3 cache compared to the Custom 0405.

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 Xeon X5647 has more threads than cores. Each physical core is split into multiple threads.