Is 64 Bit Always The Best Way To Go?

With Server 2000 we saw the release of a 64-bit version of that Operating System, and then soon there after a 64-bit version of XP and Server 2003.  These were for the Itanium Processors from Intel.  Later after the introduction of X86-64 instructions from AMD, we would see non-Itanium 64-bit versions of Windows released (Server 2003 and XP)  Those early adopters would find hardware support to be buggy, however.  It would not be until the release of Windows Vista that 64 Bit Windows would start to gain momentum.  Today we still have the option of installing 32-bit or 64-bit versions of Windows 7, but is 64 Bit always the best way to go?

I asked this question about my old laptop, a Compaq Presario C700 (C712NR)  It had an Intel Core 2 Duo T5850 running at 2.16 Ghz with 2 Gb of Ram.  It came with 32 bit Windows Vista Home Premium and I wanted to upgrade to Windows 7.  After a bit of research, I decided to just try installing Windows 7 Home Premium 64 bit.

Now this computer came with 32 bit Vista and I had also installed 32 bit Windows 7 to test, I had looked at which is faster Vista Vs 7 and XP Vs 7  which you can read here

For those interested here are the numbers for Windows Vista 32 bit on this machine.  The Pass Mark Performance Test got a score of 537.8  this is not bad at all for a laptop.  Below is the Windows Experience Index (in Vista scores range from 1.0 to 5.9)

Windows Experience Index from Vista

Now Windows 7 32 bit got a 590.4 out of the same Performance Test.  Below is the Windows Experience Index (in Windows 7 scores range from 1.0 to 7.9)

Windows Experience Index from 7

Now Windows 7 Home Premium 64 bit gets results that are not what I expected.  The Pass Mark Performance Test score is a 528 This is slower than both the 32-bit version of Windows 7 and Vista. When you look at the test results Windows 7 64 bit actually does better in some areas but worse in others, however, this result is in every test group, there is not one group where Windows 7 64 bit does worse in comparison to its 32-bit counterpart.    Below is the Windows Experience Index and note that these values are the same as the 32-bit version.

Windows Expirence Index on Windows 7 64 Bit

Windows Experience Index on Windows 7 64 Bit

It is odd that the Windows Experience Index is the same but the test results are different.  After using the computer I would suggest the 64-bit version as I felt is was improved over the 32-bit version.  As always your results may vary, so in conclusion I would say if you have a slower system with less than 4 Gb of ram stick with 32 bit but if the system is faster and still under 4 Gb or ram go with 64 bit, and always go with 64 bit when you have more than 4 Gb of ram.  At least that is my opinion.

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