A new whitepaper from Colfax International presents a new arithmetic efficiency benchmark and uses it to compare the Intel Sandy Bridge E5-2680 CPU to the Intel Westmere X5690 CPU performance.
These results lead to the conclusion that the edge of the 8-core, 2.70 GHz Sandy Bridge CPU over the 6-core, 3.46 GHz Westmere processor will be most significant in both single and double precision for linear algebra and other tasks based on addition and multiplication. Re-compilation of codes performing addition and multiplication-based tasks with AVX intrinsics instead of SSE2 should lead to additional performance benefits on Sandy Bridge. However, CPU- bound calculations heavily using the division operation and transcendental functions are likely to experience a smaller speedup from using the Sandy Bridge processor in place of Westmere. Likewise, they will benefit less from the migration from SSE2 to AVX.
Read the Full Story.
Leave your own comment