Xeon E5-2666 v3 vs Core Ultra 7 155U specs and performance
According to the hardwareDB Benchmark tool, the Xeon E5-2666 v3 is faster than the Core Ultra 7 155U. Despite this, the Core Ultra 7 155U has the advantage in our gaming benchmark.
When comparing core counts for these CPUs, we notice that the Core Ultra 7 155U has slightly more cores with 12 cores compared to the Xeon E5-2666 v3 that has 10 cores. Despite this, the Xeon E5-2666 v3 has more threads than the Core Ultra 7 155U. These CPUs have different clock speeds. Indeed, the Xeon E5-2666 v3 has a slightly higher clock speed compared to the Core Ultra 7 155U. The cache sizes of these CPUs are different. Indeed, the Core Ultra 7 155U has significantly more L2 cache than the Xeon E5-2666 v3. Despite this, the Xeon E5-2666 v3 has significantly more L3 cache compared to the Core Ultra 7 155U.
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 Xeon E5-2666 v3 has more threads than cores. Each physical core is split into multiple threads.
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