32 bit vs 64 bit benchmarks windows 7

Note that the WOW concept is really nothing new. A similar technique was employed by the earliest versions of Windows NT to support legacy bit Windows 3. Why is this? The bit versions of Vista and Windows 7 include the WOW translation layer for running bit applications see description above. In addition to translating API calls, bit Windows isolates registry changes made by bit applications and redirects them to a special sub-key within the appropriate registry hive.

Expanding this key will reveal all of the bit application registry keys and values that have been automatically redirected by WOW. Is there a performance advantage to using bit Windows 7? That depends. This is true even when using bit applications. Any bit OS will consume more memory than its bit equivalent.

This is due to the nature of bit code: It uses larger internal structures that necessarily take up more space, both in RAM and on the hard disk. There is no doubt that MS Windows 7 is much faster than MS Windows Vista, as a proof of it huge number of tests you can find in web [1]. In reality, OS loading speed as well as software launching time is what regular user mainly notices first. It is more specific to notice and benchmark performance improvements in applications and games while this performance differences is not measured in tens of percents.

Another question is does it really have significant performance differences between Windows 7 32 bit version and 64 bit version? From my subjective experience I can say, 32 bit version is slightly faster in launching of the programs, although there is no evidences seen in tests below. Still there are legitimate concerns that running 32 bit software on 64 bit OS might lead to some performance fall, because in order to run 32 bit programs emulator Wow64 is used.

With Windows 7 64 bit ability to use more RAM more than 3Gb , you should concern that addressing also become longer address to memory area. Fortunately there are some pros as well. With a 64 bit bus amount and speed of transferred information will grow. More over extra registers in CPU can be used for operations. I have noticed very interesting issue with Windows Experience Index, where one of benchmark parameters memory operations per second in Windows 7 64 bit is lower than in 32 bit.

Till now I was unable to find reasonable explanation. Two identical Hitachi hard drives are used in tests. Even I had suspected that 64bit windows are slower, there is no evidences seen in tests. Hard disks had similar characteristics. KDE 4. Home News Windows 7 Windows 7: 64 bit vs 32 bit?

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