32bit vs. 64bit OS in Games whats the difference?
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ray:
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The only time a 64-bit OS is better than 32-bit, is when the game in question supports 64-bit properly. Meaning it can utilise the 64-bit architecture and increased RAM support (32-bit limited to 3.5GB-3.7GB of RAM, 64-bit limited to 128GB of RAM). Other wise a 32-bit game will just run in 32-bit mode under a 64-bit system.
One advantage example is Crysis. If you increase the graphics on Crysis (running the 32-bit exe) to a point where Crysis needs more than +2GB of RAM, the OS wont give Crysis anymore RAM and it will use your Pagefile which can inturn cause a pausing effect when a new area in Crysis is been loaded (Moving in/out of buildings).
Running it in 64-bit i found Crysis will use upto 4GB of RAM about double what the 32-bit EXE can access.
One advantage example is Crysis. If you increase the graphics on Crysis (running the 32-bit exe) to a point where Crysis needs more than +2GB of RAM, the OS wont give Crysis anymore RAM and it will use your Pagefile which can inturn cause a pausing effect when a new area in Crysis is been loaded (Moving in/out of buildings).
Running it in 64-bit i found Crysis will use upto 4GB of RAM about double what the 32-bit EXE can access.
I see, hmmmmm so it means the difference except game supporting 64bit is the access to the memory is greater than 32bit systems... Hmmmm I guess that answers my question.... So For example in my previous thread if I installed 64bit on my desktop will that give an increase factor in GTA IV like all the memory is being used? I also noticed that the 4GB is not being used only 1.5GB so does that mean that the remaining 2.5GB is not being used or is it reserved?
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GTA IV is a 32-bit application. It says on the box "64-bit Enhanced" but all that means is you will experience the same performance on the same system using either a 32-bit or 64-bit OS.
As for the RAM. 32-bit OS even Windows7 can only use ~3.5GB and about 1GB of that will be reserved for the GPU shared memory. Then you take into account that Win7 will use some RAM aswell. So 1.5GB free sounds about right.
As for the RAM. 32-bit OS even Windows7 can only use ~3.5GB and about 1GB of that will be reserved for the GPU shared memory. Then you take into account that Win7 will use some RAM aswell. So 1.5GB free sounds about right.
I understand now so seems to me that I do not need a 64bit system because I am not a heavy user for some applications and most software's today are optimized at 32bit. Maybe sometime in the future I will try 64bit OS. Thanks for your help buddy.
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No problems. The way the gaming industry is going i suspect many more games in the near future will start to support 64-bit systems only. Mainly due to the RAM limitations, many games are becoming more graphically rich, they use larger and more of a variety textures. There are been a few games released that don't support Windows XP or DirectX 9.
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