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[TweakTown] GeForce 9800 GX2 Overclocked and Tested

post #1 of 31
Thread Starter 
Quote:
When a new high-end graphics card comes out you like to think that a CPU with four cores clocked at 3GHz is going to do the job pretty well. Though, like most high-end cards, when we start to increase the CPU clock further, we can begin to see some really good gains in performance.

So we’ve done exactly that today, we’ve moved our trusty Intel quad-core Q6600 processor up to 3.75GHz but at the same time we thought that we may as well see what we can do with the clocks on the GeForce 9800 GX2. The increases clock speeds will be what most consumers can achieve without spending a truck load of cash on extreme cooling. CPU is cooled using Corsair water cooling and the GX2 uses its stock standard air cooling.


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Armored MeDuSa
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Armored MeDuSa
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post #2 of 31
Doesn't mean a lot when they only compare it to itself. Personally, I think any review that doesn't compare the GX2 to the 3870x2 and the 8800GTS 512mb (preferably in SLI as well) is a waste of time. IMHO, benchmarks are only useful for comparisons, of which there were none.

/rant.
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post #3 of 31
Quote:
Originally Posted by tehpwnerofn00bs View Post
Doesn't mean a lot when they only compare it to itself. Personally, I think any review that doesn't compare the GX2 to the 3870x2 and the 8800GTS 512mb (preferably in SLI as well) is a waste of time. IMHO, benchmarks are only useful for comparisons, of which there were none.

/rant.
Thanks for saving me time on clicking the link.
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post #4 of 31
It looks like it overclocks decently and gets some decent performance gains at those overclocked speeds.
post #5 of 31
the card is definitely bottlenecked by the CPU to the point that overclocking the card doesn't improve the performance much. still, the best i have ever gotten was ~ 20k in 06 with two 8800GTXs, and my E8400 @ 4.5 Ghz, or 19K with my 8800GTXs and my Q6600 at 3.6 so for a single card to get around the same scores is pretty impressive. it all rides on how well quad SLI performs.
post #6 of 31
You can overclock me. The faster I am the more we can have fun
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post #7 of 31


Quote:
Keep in mind we are using early ForceWare drivers since Nvidia do not supply us with newer drivers but it is the same driver that all GX2 cards are shipping with at the moment – ForceWare 173.67.
Everyone needs to relax. Nvidia is playing a game right now. Wait until launch and I am willing to bet that one card will get close to 18,000k on 3dmark06 with a processor clocked at 3.6Ghz.
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post #8 of 31
Yeah I must admit I do like alot of the source to be copied here so I dont have to go into the link.



Quote:
Final Thoughts
You can see as soon as we let the 9800 GX2 breath more with an increased CPU overclock, we really begin to see some big numbers. Under 3DMark06 we can see we were just shy of 20,000 3DMarks.
NVIDIA’s GeForce 9800 GX2 still isn’t perfect though but with a good driver it could really begin to shine in the weeks to come but you get an early look with early drivers here today of what is to come. In our opinion, NVIDIA could have taken a different approach to the GeForce 9 series - instead of re-releasing the 8800GTS 512MB and introducing the 8800GT, these cards should have either not been released or released under the GeForce 9 series. The problem is that the 8800GT bought with it such exceptional value that NVIDIA were too high up on the podium. A new naming scheme should mean big things. Unfortunately at the moment it doesn’t look like its being delivered.<br><br>The bottom line is spec for spec the 9800 GX2 is still lower than two 8800GTS 512MB cards. At least AMD didn’t choose to release the HD 3870 X2 under a different series – the name that AMD chose perfectly explains the card: Radeon HD 3870 times two. This offering from NVIDIA is more 8800 than 9800 due to the fact that NVIDIA chose to implement the G92 core into the 8800 series products.<br><br>The next thing we want to know is how two of these GX2 cards scale. If we can bench Crysis at 1920 x 1200 and get an average of 80 FPS, we will be happy. If we get a 5 FPS increase though we will be as disappointed with the SLI Quad GPU setup as we were with a pair of HD 3870 X2 cards in Quad Crossfire.<br><br>Before we wrap this all up it’s worth noting that I did a little bit of testing with the CPU at 3.75GHz and 3.8GHz with the GX2 at stock when I was just initially playing around and trying to find the sweet spot. The biggest gains were seen from the CPU overclock rather than the VGA OC. A standard 3DMark06 run showed us just over 16k under XP on our 3GHz setup. Moving the CPU to 3.75GHz we found our 3DMark score coming in at just over 18.5k. But as always we get into a bit of a mission and in this case it was to see if we could overclock this sucker. With Rivatuner we started messing around with the clocks and at 3.8GHz we actually managed to break 20k in 3DMark06. Unfortunately the system didn’t want to consistently play nice at 3.8GHz so we did drop it back to 3.75GHz.<br><br>We could have tested the GX2 at stock speeds but with the CPU at 3.75GHz, it’s kind of boring. You don’t turn around and overclock a 2.4GHz quad-core processor to 3.8GHz and leave your graphics card at default speeds.
post #9 of 31
Just five points off of 20K when overclocked with a 3.6Ghz Quad. That's a huge gain over the 16K when the GX2 isn't overclocked.

Now if only they'd give use some benchmarks with Crysis at High or Very High.
post #10 of 31
Quote:
Originally Posted by TweakTown View Post
You don’t turn around and overclock a 2.4GHz quad-core processor to 3.8GHz and leave your graphics card at default speeds.
I do.

I am not comfortable OCing on air alone. I haven't added a waterblock as I have been waiting on these cards. Will OC the cards as soon as blocks are available. I know eVGA is supplying water cooled cards on launch, but I am fed up with eVGA. I overpay to use a step-up program that I haven't been able to take advantage of. From what I understand, everyone is completely satisified with the product they get from MSI.
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