Source: AnandTech
An in depth comparison of the 45 nm Opterons, Xeons and Core i7 CPUs is published on AnandTech website. One of their benchmarks, the famous LINPACK painted a pretty interesting performance picture.
“We had to test with a matrix size of 18000 (2.5 GB of RAM necessary), as we only had 3 GB of DDR-3 on the Core i7 platform. That should not be a huge problem as we tested with only one CPU. We normally need about 4 GB for each quadcore CPU to reach the best performance.
We also used the 9.1 version of Intel’s LINPACK, as we wanted the same binary on both platforms. As we have show before, this version of LINPACK performs best on both AMD and Intel platforms when the matrix size is low. The current 10.1 version does not work on AMD CPUs unfortunately.”
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1 LINPACK: Nehalem vs Shanghai - Part 2 // Dec 1, 2008 at 7:45 pm
[...] depth comparison of the 45 nm Opterons, Xeons and Core i7 CPUs is published on AnandTech website. Part 1 of this article seems to have generated some very interesting comments and questions, which the [...]