Well here we go again.. 7600GT AGP 7800GS OC by BFG or some radeon card.. all with 256mb, wondering if the 2.66GHZ P4 will slow them down significantly?

not significantly, but they will be slowed down a bit. depending on how much ram you have

planning on inserting 2 gigs, so shouldn't be a problem. Thanks

You will probulay have a slight decrease in performance because of the clock speed of your cpu won't have a huge effect on the overall system

I dont see there being a problem
Mactronix

Thank you, second opinions are always good..

I recently purchased a ati x1650 xt 512mg ,and placed it in my p4 3.0 Gb fsb800 on a Asus p4p800 deluxe with 2.5 ddr 400mhz,and a 500w power supply.

I dont get no-where near the fps i should be getting ,i only get around 30 fps in games which as you know is very poor performance,so i dont ,know if the cpu is slowing down the videocard.

I updated the agp/gart driver , and went back to the 7.7 cat ati videodriver to see if i could get more fps in games ,but its still the same as before.

I know my pc can get double the fps that i am getting now ,and i have been racking my brian in trying to find the answer.

If you or anyone have any ideas i would really like to hear about it .

cheers mike

Make sure the Radeon has 128bit (or higher) memory interface and GDDR3 if your comparing it to a 7600GT.

I don't know anything about computers but my first hint would be that your mobo doesnt support 512mb of vmemory.. some boards only support 256, look in the manual or on the website (try finding a manual through google if that doesn't work..) -- also you might want to open up a new thread as my P4 is FSB533 (model before yours which stopped at 3.06HT)

good luck.

Thanks for your reply. I checked in the bios of my p4p800 and the only setting that related to the video memory is the "video aperture size'. Which in my bios only goes as high as 256 mg!

Is this the videocard memory setting you set for the videocard!?

I havent flashed or updated my bios yet I was wondering does anyone know if the Asus p4p800 deluxe motherboard have a aperture update in the flashing upates of the bios.

It would be a bonus if it does!!!!!!!!!!

I'm sure that is onboard memory for the integrated video (and turbo memory, if your videocard is crappy enough), not for your dedicated video card. See if there is something that you can change to AGP as an option in the videa settings.

does anyone know if the Asus p4p800 deluxe motherboard support 512mg videomemory!

maybe thats why i am getting poor performance in fps !!!

I had that board and I dont think it supports beyond 256MB unless there was some sort of BIOS update Im not aware of. This isnt too likely due to support going out on an older board.

I would go to the ASUS website and look up the latest BIOS and update then recheck your settings if you haven't already...

http://www.tweak3d.net/joomla/feat [...] e-examined
This old article explains AGP aperture size it has nothing to do with the vram installed on the card but it is how much system ram is made available to the card if needed for rendering.

I personally think the AGP bus drivers included in xp are broken to the degree that they are generalized to work on all hardware, and not optimized.
I personally wish they would dump the PCI-E bus and just give us a universal bus that has open standards and no royalties, so that hardware mfg's don't have to pay royalties and they can finally start making external graphics cards.

The AGP bus runs at 66mhz, so I would recommend overclocking it to 100mhz and see if you get any better FPS. If you do get better performance, then your bottleneck (at least one of them anyway) lies with the speed of the data being shuffled back and forth from memory to the AGP bus.

Also, I found by my own personal research, that using a PCI sound card that has EAX (like an XFI or Audigy) can seriously limit the frame rate of a game. I always disable sound using the control panel and try a game without sound to see how much of an improvement I get (and surprisingly, its usually quite a difference).

I wouldn't recommend overclocking the AGP bus unless you really know what you are doing.

Thanks guys for your imput! as i go back and forth doin tests on system memory and testing different bios settings ect .I am coming to the conclusion that the motherboard is not allowing the videocard do what it needs to do.

Like it was mensioned eariler that maybe the p4p800 deluxe motherboard is only allowing the videocard to use 256 vmemory ,I would flash the bios ,but i'm not going to if theres no point in any updated in system configuation.

I will keep researching to shead more light on this area of new videocard vs old motherboards.


To overclock the agp bus what is the process there! is there a webpage to study up on it.

Cant beleive nobody has asked some basic questions before starting on about bioses and AGP port settings etcs, so what games are you getting these low FPS in what monitor size/res are you using any AA etc.
Mactronix

my main game at the moment is rfactor i have the settings set at :

average fps=30
1024res at 16bit
vsnc is off
texture filter =trinelear
textures,curcuit detail,other car detail ect is high not full.
no AA ,no full settings anywhere ,no overclocking,
dx7
refresh rate =75hz
15in lcd monitor
1Gb system ram (dual channelled)
3.0 Gb p4 cpu
x1650 xt 512mb ati
p4p800 deluxe mobo

a friend has a xp3.0 cpu athlon with kingston512 system ram (256x256)dual channelled.
9800pro 128mg and he gets an average of 70 fps! in rfactor with everything turned on full without vsnc!!!!

Only if he has below 1GB of ram. With a gig or more he should be fine.