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7800GTX 512MB - Won't budge an inch

post #1 of 8
Thread Starter 
Ok so put my rig together:
Pentium C2D E2140, OC @ 3.2GHz w/TR Ultra 120
Gigabyte GA-P31-DS3L
Coolermaster eXtreme 460W
XFX 7800GTX 512MB XXX (580mhz core\\1.73mem)
250GB WD SATAII HDD.

Stock everything got 5.3k in 3dmark06. Overclocked the CPU and got 5999 points.
Fine so now time to overclock the graphics. Installed RivaTuner, did the detect and reboot thingy..well that just borked my machine into oblivion and I couldn't even boot into BartsPE let alone safe mode.
So, Windows XP reinstalled, and ATiTool tried this time. Major artifacting at stock but someone suggested using the older scanning method which worked. RAM clocked to 1.75GHz and that have a measly increase in 3dmark06 to 6005. Pretty much anything over 1.75GHz and artifacts started appearing.
With the core, even 1MHz over the stock 580MHz just cripples 3dmark06 performance to the point of knocking 2000 points off! Confirmed this weirdness by installing ntune and anything over 580MHz and it fails the test I also tried sticking the CPU back to stock..no joy.
Interestingly, sometimes ATi tool shows the GPU temp as minus 190 degrees but for the best part its around 60 degrees.
Odd things going on as pretty much every review I've read and every forum I've been on people have managed at least 600MHz on the core and 1800 on the mem.
I'm seriously resisting the urge to RMA this card saying it artifacts at stock, and get an X1900XT but they are £30 more expensive..(or a 7900GT which is £20 more..what do you reckon?!)
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Smirg
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post #2 of 8
I think you're asking your gpu too much, also in order to be able to get that kind of frequencies you have to voltmod your card someway. About your 3dmark06 score, it's a pretty damn good score for a 7800GTX, so I would stay where you are. If you're about to change it, I'd suggest a 9600GT which has a great performance/cost ratio and would score about 10K points in 3dmark06
post #3 of 8
sounds as if the card is bad to me, then again that is a good score for that card. The 8800gt is a good alternative, and I am still waiting to be wowed by any of the 9000 series cards. Plus you can get an 8800gt for ~200 USD that will out perform the 9600gt.
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post #4 of 8
Quote:
Originally Posted by Outfitter540 View Post
sounds as if the card is bad to me, then again that is a good score for that card. The 8800gt is a good alternative, and I am still waiting to be wowed by any of the 9000 series cards. Plus you can get an 8800gt for ~200 USD that will out perform the 9600gt.
depends on his budget, the 9600GT is pretty close to a 8800GT in performances and will run great on his cpu.
post #5 of 8
Thread Starter 
hmm tbh i don't think asking the core for 1 extra mhz from stock is too much..yea I know the XXX edition is pre overclocked but seriously have look around at stock volts with no modding people are easily getting 600 from the core (bear in mind this is a 512MB card and not the 256MB version).

And ah the joys of living in america eh, just to give you an indication the 9600GT in the UK is £120 which is roughly $240. Don't expect any change from £150/$300 from an 8800GT. I paid £50 ($100) for the GTX so yea its a bargain, I just don't want a bad card thats teetering on the edge of instability.

And lol in the last 6 months I have been round the block with graphics cards, I've had in order:
Asus X1950 Pro 256MB
Inno3D 8800GTS 320MB
BFG 8800GT 512MB
2 x 3850 512MB in xfire
7800GTX 512MB (current)

the 3850's gave awsome performance but I sold the whole rig and made my current budget machine, hence not wanting an 88GT or 96GT
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Smirg
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post #6 of 8
I know what you're talking about, taxes here in Europe are crazy
IMO if you are to choose between X1900XT and 7900GT, the former should be your choice since it is faster,or if you find any X1950XT or the Pro would be better.
post #7 of 8
Thread Starter 
Quote:
Originally Posted by FIX_ToRNaDo View Post
I know what you're talking about, taxes here in Europe are crazy
IMO if you are to choose between X1900XT and 7900GT, the former should be your choice since it is faster,or if you find any X1950XT or the Pro would be better.
well yea the X1900XT is £84 delivered. The 7900GT is £70 delivered. X1950XT is too expensive by far, might as well just get a 9600GT for that price!
I had an X1950 Pro 256MB..surely the X1900XT/7800GTX 512MB would be faster? The 7800GTX has benched better.
Anyway I'm bidding on a 7950GT 256MB on ebay atm..how would that stack up against a 7800GTX 512MB?
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post #8 of 8
here

Sorry I couldn't find it in english; I gotta leave now, see u l8er.
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