ScienceMark 2.3	Source: ScienceMark

Mol Dyn: Molecular Dynamics is a method for simulating the thermodynamic behaviour of materials using their forces, velocities, and positions. Most important of the afore mentioned is the force. Primordia: This code calculates the Quantum Mechanical Hartree-Fock Orbital for each electron in any element of the periodic table lower times indicate better results.

Lower calculation times are better.

ScienceMark 2.3 - Windows Vista Primordia: 2-core (sec) Ranking Intel Core i7 920 214.30866 Intel Core 2 Duo E8500 182.98519 Intel Core 2 Duo E8400 193.09425 AMD Phenom II X4 965 Black Edition 169.76479 AMD Phenom II X4 955 Black Edition 180.79589 AMD Phenom II X3 720 Black Edition (DDR2) 206.44843 AMD Phenom II X3 720 Black Edition (DDR3) 205.89 AMD Phenom II X2 550 Black Edition 187.42693 AMD Athlon II X4 620 222.29283 AMD Athlon II X2 250 194.40944 Mol Dyn: 2-core (sec) Ranking Intel Core i7 920 40.44002 Intel Core 2 Duo E8500 43.53948 Intel Core 2 Duo E8400 46.56567 AMD Phenom II X4 965 Black Edition 46.13833 AMD Phenom II X4 955 Black Edition 49.00769 AMD Phenom II X3 720 Black Edition (DDR2) 56.19517 AMD Phenom II X3 720 Black Edition (DDR3) 55.893 AMD Phenom II X2 550 Black Edition 50.63983 AMD Athlon II X4 620 60.23274 AMD Athlon II X2 250 52.47853

Sciencemark can't make use of two cores on the Athlon II X4 620, and the processor's 2.6GHz clockspeed and lack of L3 cache means that it doesn't do as well as processors with higher clockspeeds. The Athlon II X4 620 posts the slowest compute time for Mol Dyn and Primordia tests, of all processors PCSTATS has tested.

ScienceMark 2.3 - Windows 7 Primordia: (sec) 2-core Ranking Intel Core i7 920 212.04955 Intel Core 2 Duo E8400 192.65652 AMD Phenom II X4 965 Black Edition 170.46994 AMD Athlon II X4 620 224.25671 Mol Dyn: (sec) 2-core Ranking Intel Core i7 920 38.47092 Intel Core 2 Duo E8400 45.93169 AMD Phenom II X4 965 Black Edition 43.20008 AMD Athlon II X4 620 56.74246

ScienceMark's Primordia test tends to favor AMD processors, but the Athlon II X4 620 still doesn't do particularly well here. The results in Windows 7 are again, nearly identical to Windows Vista.

WinRAR Internal Benchmark	Source: RARLabs

This command generates random data, which contain specially introduced redundancy increasing load to processor and memory. Then data are passed through RAR compression and decompression algorithms and output of decompression algorithm is compared with source data. If any difference found, WinRAR reports "Errors found - Yes" in the command window. Also WinRAR displays a size of processed data and compression speed, current and resulting, in kilobytes per second. You may use the resulting speed value to compare RAR performance in different conditions.

Higher results are better.

WinRAR 3.8 Internal Benchmark - Windows Vista KB/s Points Ranking Intel Core i7 920 3012 Intel Core 2 Duo E8500 923 Intel Core 2 Duo E8400 1058 AMD Phenom II X4 965 Black Edition 1975 AMD Phenom II X4 955 Black Edition 1866 AMD Phenom II X3 720 Black Edition (DDR2) 1534 AMD Phenom II X3 720 Black Edition (DDR3) 1435 AMD Phenom II X2 550 Black Edition 970 AMD Athlon II X4 620 1348 AMD Athlon II X2 250 887

WinRAR scales to multiple cores, but it also relies heavily on threads communicating with one another. Unlike the other quad-core processors here (and the triple-core Phenom II X3 720), the Athlon II X4 620 doesn't have L3 cache. This cuts the Athlon II X4 620's performance down to slightly below that of the Phenom II X3 720.

WinRAR 3.8 Internal Benchmark - Windows 7 KB/s Points Ranking Intel Core i7 920 2513 Intel Core 2 Duo E8400 1251 AMD Phenom II X4 965 Black Edition 1637 AMD Athlon II X4 620 1449

WinRar's internal benchmark scores tend to fluctuate a lot between runs (due to the mechanical nature of hard drive caching), so don't read too much into the differences here between Windows 7 and Windows Vista scores.