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View Full Version : truth? 2gb = 32 bit vista?, 4 gb = 64 bit vista?


zombix
05-22-2007, 06:31 AM
I have 2 sticks ( 2gb ) of DDR 500 PC 4000 crucial balistix memory.

I heard that if you are running 64 bit vista it would be wise to use 4 gb of memory.

Since i only have 2 gb should i be running 32 bit vista instead?

Unknown-One
05-22-2007, 06:49 AM
The memory requirements should be roughly the same between both 32 and 64-bit versions, so no, you don't need to downgrade to 32bit because you 'only' have 2GB of RAM. As long at 64-bit is working for you, stick with it.

As a side note, Vista has no problems working on as little as 1GB of RAM, and most people would consider anything much over 2GB reaching into "overkill" territory.

zombix
05-22-2007, 06:52 AM
i see, well im thinking of getting 2 more sticks of memory 1 gb each. Is there still the issue where nforce 4 boards or A8N32-SLI deluxe mobo wont run at max timings? And if iwere to install 1gb in each slot = 4 gb does vista fix this issue or is it still the same because of the mobo or nforce 4 chipset?

annaconda
05-22-2007, 09:48 AM
Stick with 64bit it will help you in the future if you want to upgrade memory from 2GB to 4GB. THen you don;t have to reinstall windows again.

Gatticus
05-22-2007, 11:06 AM
The memory requirements should be roughly the same between both 32 and 64-bit versions,

How do you figure that? 64bit programs do require more ram usage than their 32bit counterpart. Perhaps not double but if I was running Vista 64bit I would want 4gb of ram.

http://en.wikipedia.org/wiki/64-bit

The main disadvantage of 64-bit architectures is that relative to 32-bit architectures the same data occupies slightly more space in memory (due to swollen pointers and possibly other types and alignment padding). This increases the memory requirements of a given process and can have implications for efficient processor cache utilization.

jordan12
05-22-2007, 11:22 AM
2 gig is fine for the Vista 64 bit..

djnes
05-22-2007, 03:33 PM
2 gig is fine for the Vista 64 bit..
I have it running on a test machine at work, that's a Celeron D 356 with 1 GB of memory, and Vista64 runs fine on it.

theriverlethe
05-22-2007, 03:43 PM
When I attempted to use 64-bit Vista with 2 gigs, programs that I could switch out of instantly on XP, such as BF2142, now took 30 seconds or more to swap out. I don't know if this is because of the inefficiency of using 32-bit apps in 64-bit Vista, or simply the greater memory requirements of Vista. However, I would definitely recommend 4 gigs for acceptable performance.

General Crespin
05-22-2007, 08:06 PM
The thing with Vista is, it will use the RAM if you have it. If you don't have the RAM, it won't use it, and it still runs fine. :) (I'm sure there's differences, just don't ask me what it is...)

Gatticus
05-23-2007, 12:53 AM
Welp, from what I posted above it is saying that the cpu cache may be less efficient due to the expanded memory usage. I did have Microsoft send me the 64bit version of Vista but unless you have a need for more than 4gb of ram I really see no need to go to 64bit at this point in time. Just what benefit is a 64bit OS giving people on a PC with only 1gb of ram? My guess is; absolutely nothing. It is a benefit to people that do things like video processing and need to run with >4gb of ram.

theriverlethe
05-23-2007, 10:26 AM
Welp, from what I posted above it is saying that the cpu cache may be less efficient due to the expanded memory usage. I did have Microsoft send me the 64bit version of Vista but unless you have a need for more than 4gb of ram I really see no need to go to 64bit at this point in time. Just what benefit is a 64bit OS giving people on a PC with only 1gb of ram? My guess is; absolutely nothing. It is a benefit to people that do things like video processing and need to run with >4gb of ram.

Just to clarify, you need 64-bit if you have ONLY 4Gb of RAM, or you'll only be able to use 3.25Gb, as the rest of the address space is reserved for video memory, etc.

Sovereign
05-23-2007, 01:17 PM
If you're lucky you'll get 3.25GB. I've seen even less on XP machines (don't know if Vista is different), my friend only sees 2.8GB under XP Pro 32-bit. Maybe he configured something in a less-than-optimal state?

mwarps
05-23-2007, 08:27 PM
i see, well im thinking of getting 2 more sticks of memory 1 gb each. Is there still the issue where nforce 4 boards or A8N32-SLI deluxe mobo wont run at max timings? And if iwere to install 1gb in each slot = 4 gb does vista fix this issue or is it still the same because of the mobo or nforce 4 chipset?

This is a limitation of 32-bit operating systems' addressing space. Vista 32 will only see around 3.25-3.5GB.

64-bit systems should see all 4GB.

TheRapture
05-23-2007, 08:38 PM
This is a limitation of 32-bit operating systems' addressing space. Vista 32 will only see around 3.25-3.5GB.

64-bit systems should see all 4GB.


I run 3gb (2 x 1gb and 2 x 512mb) in Vista Ultimate 32 bit.....plennnnnty of ram for 99% of the power users. If you need more than 3gb, use the 64 bit version.

debello_64
05-24-2007, 08:14 AM
I run 4gigs of ram under Vista 64 and I see the full 4 gigs. The only reason I ever get up to 70 percent ram usage is because of Lotro stupid vista memory leak but thats a different discussion. 4gigs under vista, just feels alot smoother the 2gigs, but that is probably only a personal perception on my side.

I havent got around to doing a video editing yet on my new machine so I am not sure how much performance increase there is going to be from 2gigs to 4gigs.

dot_Zen
05-24-2007, 08:18 AM
Just got my other 2 gigs back from Corsair (RMA). So, I'm now up to 4 gigs--which was originally intended on this rig prior to Vista.. So far, doing some flash projects, Visual Studio and Photoshop work everything seems to be silky smooth. I can open up multiple project files without a hint of dissent from my memory. I'm sure that can be maxed out, too. But I was running into issue where a few files loaded in each slowed me down a bit; in XP and Vista.

Multi-tasking's never been better. :cool: