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Windows 7: Memory Distribution

14 Jul 2010   #11
DirtRider

Windows 7 Pro 64 bit
 
 

So this is what I thought the first time so I could have just as well purchased a card with no memory at all as it come down to the same thing having 4 Gig on board already


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14 Jul 2010   #12
stormy13
Microsoft MVP

Win 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by fseal View Post
No, Windows can only use up to 3 gig in your case because the 1 gig on your video card is "stomping" on the upper one gig of your 4 gig of system ram which is essentially disabled.

If you install the 64 bit version of windows then you will be able to use all 4 gig of system ram and the video ram will be mapped way up high out of the way.
And no matter how you slice it the two do not get added together.

Graphics processing unit - Wikipedia, the free encyclopedia

Video memory - Wikipedia, the free encyclopedia

VRAM - Wikipedia, the free encyclopedia

Video memory mysteries (dated, but every little bit helps)
My System SpecsSystem Spec
14 Jul 2010   #13
Win7User512

Windows 7 x64 / Same
 
 

I agree with Stormy13. They don't get added together. Video card memory is not system memory.
My System SpecsSystem Spec
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14 Jul 2010   #14
DirtRider

Windows 7 Pro 64 bit
 
 

Quote   Quote: Originally Posted by stormy13 View Post
Quote   Quote: Originally Posted by fseal View Post
No, Windows can only use up to 3 gig in your case because the 1 gig on your video card is "stomping" on the upper one gig of your 4 gig of system ram which is essentially disabled.

If you install the 64 bit version of windows then you will be able to use all 4 gig of system ram and the video ram will be mapped way up high out of the way.
And no matter how you slice it the two do not get added together.

Graphics processing unit - Wikipedia, the free encyclopedia

Video memory - Wikipedia, the free encyclopedia

VRAM - Wikipedia, the free encyclopedia

Video memory mysteries (dated, but every little bit helps)
So basically then I do have a total of 5 Gig working at one time but not as one so to speak. In other words if my system (Win7) is using the full 4 Gigs the game will still have the 1 Gig on the video card to use. Then it is better to have a Video card with 1 Gig on it
My System SpecsSystem Spec
14 Jul 2010   #15
fseal

Windows 7 x64 Ultimate
 
 

No.

In your setup, windows will have 3 gig or less to use and the video card 1 gig. You can look it up right now. How much ram usable does your windows machine report? Right click the task bar, then Start Task Manager, then click the performance tab then click the "Resource Monitor" button. On the Resource Monitor, click the "Memory" tab and look at the colored graph. It will show you your total system ram and it will also show some amount of it labelled "Hardware reserved" that part of your system ram can never be used for anything. If you use W7 x64 then there will be very little Hardware Reserved area any more and pretty much your full 4 gig of ram can be used by windows. (My hardware reserved is currently 5 MB, so small the grey part isn't even visible on the graph)

Also, you can.t buy a video card with no ram because all add-in cards use their own ram for speed reasons. Frequently built-in motherboard video chips use system ram instead of their own ram but that's not the case here at all.
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14 Jul 2010   #16
DirtRider

Windows 7 Pro 64 bit
 
 

Ok I did a capture with BFBC2 running and without it running


Attached Images
Memory Distribution-ram01-jul.-14-19.20.jpg Memory Distribution-ram02-jul.-14-19.21.jpg 
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14 Jul 2010   #17
Win7User512

Windows 7 x64 / Same
 
 

Quote   Quote: Originally Posted by DirtRider View Post
Ok I did a capture with BFBC2 running and without it running

Regardless of what you have running, you only have 3326GB at your disposal. The remaining (770MB) is system-reserved.

Your video card is using its own 1GB of memory, not shown in that pic.
My System SpecsSystem Spec
14 Jul 2010   #18
fseal

Windows 7 x64 Ultimate
 
 

Ok, that's pretty typical there. Windows gets slightly over 3 gig to use for itself. It looks like your video card is making 512 meg available at once for addressing externally and the rest of that 720 is other pieces of hardware in your computer each needing some amount of addressable ram space.

Though your video card is 1024 meg, the driver is only making 512 available for direct addressing then using the other 512 used internally (or switching it back and forth as needed) so that it is not taking up a full 1 meg of your main ram. Some cards DO that and reduce your usable memory to like 2.7 gig

So anyway, you have a decent mix of ram use there for the 32 bit version of windows. I wouldn;t worry about anything at this point (Though W7x64 will get you that extra 700 meg back!)
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14 Jul 2010   #19
DirtRider

Windows 7 Pro 64 bit
 
 

I was not really worried about it as everything runs great, it was just something that crossed my mind when I asked in another thread what is better 64 or 32. I suppose if I wanted to go to 64 now it would be a whole new W7 OS as I believe you cannot upgrade from 32 to 64
My System SpecsSystem Spec
14 Jul 2010   #20
Win7User512

Windows 7 x64 / Same
 
 

Quote   Quote: Originally Posted by DirtRider View Post
I was not really worried about it as everything runs great, it was just something that crossed my mind when I asked in another thread what is better 64 or 32. I suppose if I wanted to go to 64 now it would be a whole new W7 OS as I believe you cannot upgrade from 32 to 64
Correct, to go x64 requires a fresh install of the OS.
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