Legit Processor Reviews
AMD Phenom II X4 975BE and 840 CPU Reviews
| Manufacturer: | AMD |
| Product: | Phenom II X4 975 Black Edition and X4 840 CPUs |
| Date: | Mon, Jan 03, 2011 - 11:01 PM |
| Written By: | Justin West - |
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wPrime
wPrime is a leading multithreaded benchmark for x86 processors that tests your processor performance by calculating square roots with a recursive call of Newton's method for estimating functions, with f(x)=x2-k, where k is the number we're sqrting, until Sgn(f(x)/f'(x)) does not equal that of the previous iteration, starting with an estimation of k/2. It then uses an iterative calling of the estimation method a set amount of times to increase the accuracy of the results. It then confirms that n(k)2=k to ensure the calculation was correct. It repeats this for all numbers from 1 to the requested maximum.
Benchmark Results: Unlike the memory bandwidth, the Phenom II X4 975 BE is not able to keep up with the Phenom II X6 1090T hex-core in this raw CPU calculating benchmark. What is nice to see is the X4 840 performing just a tad slower than the Intel Core i5 2400 and the X4 975 BE performing on par with the Intel Core i5 2500K!
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| Review Index |
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Page 1 - The AMD Phenom II X4 975 BE CPU
Page 2 - The AMD Phenom II X4 840 CPU Page 3 - Test Setup Page 4 - SiSoft Sandra 2011b Page 5 - wPrime Page 6 - Microsoft Excel 2010 Page 7 - x264 HD Encoding Page 8 - Handbrake Page 9 - Sony Vegas 10 Page 10 - Cinebench 11.5 Page 11 - 7-Zip Page 12 - iTunes 10 Page 13 - Folding@home Page 14 - Left 4 Dead 2 Page 15 - Starcraft II Page 16 - FIFA 2011 Page 17 - Overclocking the AMD Phenom II X4 975 BE Page 18 - Final Thoughts and Conclusion |
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