■Floating Point Performance - Singlethread
Sandy_Bridge Nehalem_i7-920 (%) Benchmark
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1591 1923 -17.3 Mandelbrot
902 992 -9.1 Dot Product
3585 4197 -14.6 Dot Product
2538 1526 66.3 LU Decomposition
4273 4015 6.4 Primality Test
562 840 -33.1 Sharpen Image
2246 2975 -24.5 Blur Image
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1836 1988 -7.6 GEOMEAN()作者: PRAM 时间: 2010-8-22 10:43
Compared to Bulldozer there already is a nice collection of benchmark numbers for Sandy Bridge. For example those posted by Coolaler, a few BOINC benchmark results and a video with a mobile Sandy Bridge running Cinema 4D. The video analysis done in the Planet3DNow forums resulted in a deciphered score of 19641, confirmed by the measured run time (44 s). This means, the tested mobile Sandy Bridge processor was as fast as a Core i7-975 Extreme. Another comparison could be done by using a recently published Geekbench result of a 1.6 GHz Sandy Bridge CPU. So I compared it to a Core i7 also running at 1.6 GHz and made following table with overall results and a diagram showing the differences in detail.
So the average performance increase with those CPUs at the same base clock, but with different Turbo Boost implementations, is about 20%. In the diagram below we can see a significant average difference in multi-threaded benchmarks: 作者: 娃娃脸雪糕 时间: 2010-8-22 10:57
坐等翻译......作者: 我要飞2008 时间: 2010-8-22 11:06
1.6g 就这么强啊作者: godsheng 时间: 2010-8-22 11:56
我是文盲~看不懂呀~作者: kingclerk 时间: 2010-8-22 23:40
貌似同频下单线程性能只能打平手，多线程性能有较大提高