Will RAM affect games FPS on a 64 BIT OS ?

Prob :Lately i was on WINDOWS XP PRO SP3 32BIT & never ever tried 64 BIT, but after the Release of WIN & which tempted me to go for ULTIMATE 64BIT , but all of a sudden i see some drastic drop in games FPS & with heavy LAGS ! GAMES : CRYSIS : WARHEAD, COD 6 MW2, STAR WARS FORCE UNLEASHED !

FPS : CRYSIS WARHEAD : 18-25 FPS ON GAMER , STAR WARS 10-18 ,
COD6 MW2 : 18-25 ON HIGH ( all the game with no AAs AFs ) with WIN 7 64 BIT

before : i ran CRYSIS WARHEAD MAXED OUT ( enthusiastic ) with 30 fps on my XP
My rig : INTEL E 2160 @ STOCK ,MOBO : ASUS P5KC , RAM : TRANS 2GB 800MHz, GPU : HD 4850 PSU : CORSAIR VX 450.

ONE WORD : i got gud fps on XP with the same RIG & but just an OS CHANGE & 64BIT will this be the problem ?


thanks

64 bit OS will consume more RAM. As i could see your config, you have just 2 GB which would be enough for XP. However for WIN 7 64 Bit it would consume a minimum of 1 GB for the OS itself, and thats where the bottleneck is. Your games may not have enough memory and hence a reduction in the FPS.

Are you playing on the same resolution in both cases? Cant speak for MW2, but none of the other games use any more than 1.2GB of memory at any given point. So memory shouldn't really matter. Maybe you are using a different driver version?

Yes, mate am playing @ the same res
before 1400*900 & now the same & bout thedriver : am using ati cc 9.10 & even on xp the same
STRANGE AINT IT ?

Any 64 bit OS would require upgrading your RAM. I would like to reiterate it.4GB is recommended for 64 bit OS if you are about to play graphic intensive games. Surely RAM is a bottleneck in your case

wll does this means that i have to buy a RAM ? sucks i should have bought it when it was really LOW, but now it cost 2.2k for a 2 GIG

First of all, 2 gb RAM is a little low here as the windows 7 OS is a little memory heavy compared to XP.

Secondly, you are doing a comparison of Crysis with XP and 7. Xp forces Crysis to DirectX 9 which gives better performance than the DirectX 10 that Vista/7 enables. That could explain your sudden drop in Crysis performance.

Yup windows vista needs 4Gb mmemory to perform equivalent to Xp with 2GB ram. Booting time afer installing 4 Gigs reduces booting time in vista.

Crysis DX10> Crysis DX 9

okay with CRYSIS, but wat bout other games ? even COD6 MW2 & star wars lags

dude simply upgrade ur ram to 4 gigs....or try borrow it frm any of ur friend to test ur rig...simple..!

I am gonna assume that you have already run these games in XP and found them faster there.

Nway, 2 GB of memory doesnt cut it for the latest texture heavy games especially when you have VISTA or 7 that has a much bigger OS memory footprint than XP.

Ok, sorry to say but a lot of in-correct replies here. I have 2gb RAm, and a 9600GT and all games perform similar on XP and Win 7 a margin of error of 5% is acceptable.

Alias has a point, try running Crysis in DX 9 and check? Also update the gfx card drivers. Also what resolution are you gaming at?

Well, not sure how heavy COD6 or Star wars is but i remember COD4 + Vista occupying around 1.5 to 1.8 Gb memory space when loaded.

^^
He's playing at 1440X900.

i think the main prob cud be the single ch ram config.
if he had 2*1GB then it wudnt hav mattered.

Couldn't agree more.

The theory of faster load times on Vista from 2GB to 4GB is illogical, most of the RAM is gonna remain unused. Also, the real world performance differences (in terms of fps) are minimal in most games. Exceptions are GTA IV and the likes in which a very large quantity of data with several non reusable/unique textures [whole of Liberty city, several car skins/models, people models/skins, audio files, weather effects, lighting effects] are the only games that benefit from more memory.

Crysis Warhead for instance, even with its Direct X 10 textures and all settings maxed out wont take up any more than 1.3GB. The advantages of having more memory is not directly felt in fps, but rather delays when starting up or exiting a heavy application during which the OS allocates or clears memory to be used.

Edit : As for the topic starters problem, try and check your Windows 7 task manager for any other misc applications choking system memory.