Let抯 take a look at the results obtained in a few other applications. We will now take ScienceMark 2.0. This test estimates the systems performance when working on typical mathematical modeling of physical processes.
The first test, Molecular Dynamics, models the thermodynamic condition of the substance using molecular dynamics methodology. As we see, the algorithms used in this case work much faster in 64-bit mode. We see the highest performance gain by the K8 processor, which gets 2.7 times faster. As for Core 2 Extreme X6800, it boasts slightly lower results, speeding up by 搊nly?111%.
Another scientific test, Primordia, that calculates the quantum atom structures also reveals the advantages of the 64-bit architectures over 32-bit ones. However in this case, the performance advantage is not as high as in the previous case. The maximum performance boost belongs to Pentium Extreme Edition 965 processor working 57% faster in 64-bit mode. Athlon 64 FX-62 and Core 2 Extreme X6800 receive almost identical performance boost from switching to 64-bit mode: 14%.
Thanks to the benchmarking tool built into one of the most efficient archiving utilities ?7-zip, we measured the data compression and decompression speeds for different CPU work modes. The results show that there is only one CPU that benefits from switching to 64-bit mode: it is AMD Athlon 64 FX-62. Intel processors with NetBurst as well as Core microarchitecture slow down with EM64T enabled.
During data decompression all the testing participants show some performance improvement from switching to the 64-bit mode. However, the performance of Core 2 Extreme X6800 processor improves by only 2.5% and is a way lower than the performance boost on Intel NetBurst and AMD K8 based solutions.
Video encoding into wmv-format in 64-bit mode accelerates only on systems with NetBurst based processors. As for Core 2 Extreme X6800 and Athlon 64 FX-62 they work slower in 64-bit version of the Windows Media Encoder than in the 32-bit one. The difference makes about 10%.
PDNBench is a test that reveals the system performance when working with typical image editing tasks in a popular open graphics editing suite aka Paint.NET 2.64. The results obtained in this test show a pretty significant performance boost provided by the AMD64 and EM64T extensions. According to the chart above, the CPUs get 25% to 42% faster with the maximum performance improvement available from Intel Core based CPU.
