9800GX2 and X48 [Archive] - XtremeSystems Forums

bellinghamwa

03-12-2008, 07:02 PM

zanzabar

03-12-2008, 07:05 PM

it should work fine like the 7950 did, but unless ur stepping up the 3870x2 should be faster

Asgard_thor

03-12-2008, 07:09 PM

the card should be fine

xMrBunglex

03-12-2008, 11:58 PM

a single 9800 GX2 will run on any mobo with a PCI-E slot. you'll only be able to run two of them if you have an SLI-capable board though - and Vista. Quad SLI and Quad CrossFire won't work in XP.

tiro_uspsss

03-13-2008, 01:35 AM

a single 9800 GX2 will run on any mobo with a PCI-E slot. you'll only be able to run two of them if you have an SLI-capable board though - and Vista. Quad SLI and Quad CrossFire won't work in XP.

wouldnt be so sure of that - check linky in this thread:

http://www.xtremesystems.org/forums/showthread.php?t=180339

YukonTrooper

03-13-2008, 01:48 AM

Whatever you do, make sure you get a PCI-e 2.0 compatible board. The 3870X2 and 8900GX2 are the first cards to take advantage of the extra bandwidth.

tiro_uspsss

03-13-2008, 01:52 AM

Whatever you do, make sure you get a PCI-e 2.0 compatible board. The 3870X2 and 8900GX2 are the first cards to take advantage of the extra bandwidth.

serious? u got any links for read-up on that, wouldnt mind having a read, cheers! :up:

ncsa

03-13-2008, 02:04 AM

The 7950GX2 worked well on most Intel Chipset boards, it will come down to whose 'flavour' , for instance the DFI P35 would not run the 7950GX2 until a very poor BIOS was released (it wouldn't run in the DFI 680i either) but ran fine on the Abit IP35Pro.

I know neither of these are officially out, but I am looking for input on what Mobo to get.
I am building a new system with a single 9800GX2 and was going to use the Asus P5E3 Premium (X48), but I wonder if this card is compatible??
Can any previous 7950GX2 users chime in? Did it work well/at all on Intel boards?

xMrBunglex

03-13-2008, 11:10 AM

wouldnt be so sure of that - check linky in this thread:

http://www.xtremesystems.org/forums/showthread.php?t=180339

i read the thread and i'm still not sure what you mean. it's a fact that quad-GPU's don't work in XP with DX9. no driver will change that. as far as what chipset is required, the 9800 GX2 should be no different than the 7950 GX2 - it worked on all chipsets.

Flip_Lx

03-13-2008, 02:00 PM

7950gx2 running in my cheapo p35 board no problems, ran fine on my old nf4 and has been used on an msi965 and x38 without any problems

DaMulta

03-13-2008, 02:03 PM

a single 9800 GX2 will run on any mobo with a PCI-E slot. you'll only be able to run two of them if you have an SLI-capable board though - and Vista. Quad SLI and Quad CrossFire won't work in XP.

There have been reports that it still does not work right on non ninvida chipsets because you have to turn on SLi.

I wonder if this is a shaddy way to get more people to buy thier chipsets.

bellinghamwa

03-13-2008, 04:32 PM

I didn't realize that the 9800GX2 isn't really a 1GB card.
Is it true that an application can only use 512MB of the RAM??

BenchZowner

03-13-2008, 04:38 PM

I didn't realize that the 9800GX2 isn't really a 1GB card.
Is it true that an application can only use 512MB of the RAM??

Each GPU has 512MB of memory.
But it's not shared or something that you can say "512MB + 512MB=1024MB".
"Each cards memory contains the same things" ( the " are there for a reason :p: ).

bellinghamwa

03-13-2008, 04:49 PM

Each GPU has 512MB of memory.
But it's not shared or something that you can say "512MB + 512MB=1024MB".
"Each cards memory contains the same things" ( the " are there for a reason :p: ).

Is that the same for SLI? If I had 2 9800GXT in SLI would I still only have 512MB of RAM for an application?

I played Crysis the other day with my 8800GTX for 30 minutes and the game was using more than 751MB!!!

BenchZowner

03-13-2008, 05:00 PM

Yes, the same applies for SLI ( ed: The 9800GX2 is actually 2 cards in a single "package" [ or should I say sandwich, due to the stock heatsink/cover :p: ], it's using SLI to work ).

bellinghamwa

03-13-2008, 05:07 PM

CraptacularOne

03-13-2008, 05:21 PM

Then could I potentially get better performance from a 8800GTX Ultra (768MB and 384 bit) than from a 9800GTX (512MB and 256bit) or does the 9800GTX have other advantages that will out way the more RAM and bit?

Teh 9800GX2 will be faster because it has 2 cores to process the data vs 1 on the 8800Ultra. The benefit of SLI isn't to increase your memory because you don't (as was explained to you above) but to increase your GPU rendering power.

WrigleyVillain

03-13-2008, 05:28 PM

I played Crysis the other day with my 8800GTX for 30 minutes and the game was using more than 751MB!!!

What res was that? My personal record is 865 with Oblivion at 1920x1200, 2x AA + HDR (all the hi-res texture mods etc). Most of my games still use less than 500, btw.

bellinghamwa

03-13-2008, 05:29 PM

Teh 9800GX2 will be faster because it has 2 cores to process the data vs 1 on the 8800Ultra. The benefit of SLI isn't to increase your memory because you don't (as was explained to you above) but to increase your GPU rendering power.

But what about the regular 9800GTX (not GX2). Could the 8800GTX Ultra (768MB and 384 bit) potentially outperform a 9800GTX (512MB and 256bit)?

I don't understand why NVIDIA is limiting cards to 512MB if some games will use as many 750MB.

bellinghamwa

03-13-2008, 05:35 PM

What res was that? My personal record is 865 with Oblivion at 1920x1200 (all the hi-res texture mods etc). Most of my games still use less than 500, btw.

It was 1920x1200;XP SP2; settings on High and 4xAA. It was very shiny :D and a barely bearable 25 FPS.

I hit about 530 in World in Conflict and 675 in the Froggy Demo.

CraptacularOne

03-13-2008, 05:36 PM

But what about the regular 9800GTX (not GX2). Could the 8800GTX Ultra (768MB and 384 bit) potentially outperform a 9800GTX (512MB and 256bit)?

I don't understand why NVIDIA is limiting cards to 512MB if some games will use as many 750MB.

What you were probably looking at was the system RAM being used in regards to Crysis.

And yes it is entirely possible and probably likely that the 8800GTX/Ultra will perform better in the high resolutions because of their larger amount of memory and wider data path.

BenchZowner

03-13-2008, 05:40 PM

Then could I potentially get better performance from a 8800GTX Ultra (768MB and 384 bit) than from a 9800GTX (512MB and 256bit) or does the 9800GTX have other advantages that will out way the more RAM and bit?

Well, considering the overclocking potential of the 9800GTX ( G92 core ) and the faster RAM used ( reaching GDDR3-2460 ) it'll be at least on par with the 8800 GTX/Ultra even on high resolutions, considering that we'd overclock both cards.

On Air and water cooling the 9800GTX has the advantage of higher GPU & Shader clocks, and "loses" in memory bandwidth ( ~78.8gbps against ~105.6gbps ). [ approx. ]

bellinghamwa

03-13-2008, 05:40 PM

What you were probably looking at was the system RAM being used in regards to Crysis.

It was definitely the Video Memory. The physical memory was over 1700. See the screen shot in my post above.

CraptacularOne

03-13-2008, 06:54 PM

It was definitely the Video Memory. The physical memory was over 1700. See the screen shot in my post above.

I see no screens :shrug:

bellinghamwa

03-13-2008, 11:30 PM

I see no screens :shrug:

Post #14...4:49pm

xMrBunglex

03-14-2008, 12:23 AM

But what about the regular 9800GTX (not GX2). Could the 8800GTX Ultra (768MB and 384 bit) potentially outperform a 9800GTX (512MB and 256bit)?

I don't understand why NVIDIA is limiting cards to 512MB if some games will use as many 750MB.

keep in mind that a video card doesn't just fall to pieces when you're using more VRAM than it has. it will begin to swap with your system RAM, which is slower but still works. i think the general rule of thumb is that framerate won't really plummet on a 512 MB video card until you start using 600 MB or more. beyond that point, your framerate will begin to drop dramatically. however, it's still possible that having each video card render every other frame will still keep you rendering faster than a single GTX. if you have a GX2 and each GPU is only rendering 30 fps, you're still getting a total of 60 fps assuming you're running in AFR (Alternate Frame Rendering) mode.

Talonman

03-14-2008, 02:32 AM

I know neither of these are officially out, but I am looking for input on what Mobo to get.
I am building a new system with a single 9800GX2 and was going to use the Asus P5E3 Premium (X48), but I wonder if this card is compatible??
Can any previous 7950GX2 users chime in? Did it work well/at all on Intel boards?

I am still waiting for the final word on the GX2 and intel mobo's...
I think I am still going to grab a GX2 for my Maximus SE...

Ref link:http://www.xtremesystems.org/forums/showthread.php?t=180339
"Pconline.com just released an review of NVIDIA GeForce 9800GX2(but to me, it is only a quick bench).

There is two things you should keep in mind:

1. They have to enable SLI via Forceware control panel manually to utilize two G92 cores.

2. The card didn’t work on X48 mainboard. Yes they can use it on the board but if 3D application starts users will only see a crash notice.

We don’t know both issues are the Driver bugs or hardware problems".

xMrBunglex

03-14-2008, 09:39 AM

wow. what a piece of crap. i'd be shocked if that wasn't just a driver error that will get fixed ASAP. Nvidia is shooting themselves in the foot if this thing only works on Nvidia chipsets.

slugzkea

04-11-2008, 05:29 PM

confirmed. I just upgraded from a GA p35-ds3p board, to a rampage formula x48

and now my 9800gx2 won't work. I get a beep code error stating, it's VGA.

I raged at XFX about this since there was no warnings on the box or anything about x48.

Either the card actually died, or it doesn't work on x48..i've heard of it working on some x48 boards, but not my rampage!!! :mad: :mad: :mad: :mad: :mad:

atomicvai

04-11-2008, 06:59 PM

I doubt it's the Rampage board... it's just a cherry picked X38. I even run the rampage bios on my Maximus Formula and have no issues with my GX2.

slugzkea

04-11-2008, 07:18 PM

the rampage isn't even on the asus website....some one care to explain this?

atomicvai

04-11-2008, 07:28 PM

It's there when I look.

railmeat

04-11-2008, 08:00 PM

What you were probably looking at was the system RAM being used in regards to Crysis.

And yes it is entirely possible and probably likely that the 8800GTX/Ultra will perform better in the high resolutions because of their larger amount of memory and wider data path.

"And yes it is entirely possible and probably likely that the 8800GTX/Ultra will perform better in the high resolutions because of their larger amount of memory and wider data path."

dam striaght....8800gtx smokes it in hi res gaming,its just a better card in my opion period.i mean if the 9800gtx was something amazing it would have been $600,not $340...

read this poll,%95 of ppl here agree the 8800gtx is a better card.
http://www.xtremesystems.org/forums/showthread.php?t=183309