Graphic Cards Extreme overclocking: ATI X1800XT vs nVidia 7800GTX 512MB

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Source : Nordichardware

For the complete article & images click here

Intro :

At the beginning of October ATI launched a new series of graphic cards with Radeon X1800XT as the performance monster leading the new generation. About the same time that the cards would be released in the middle of November NVIDIA relased without warning a the least to say tuned 7800GTX card. Even if they still used the GTX name, although with the 512 addition to tell you of the larger amount of memory, you could historically call this new version an Ultra version. With just as much memory used by both cards and with NVIDIA's increased frequencies the situation has never been so even.
Usually we don't talk about the overclocking until the end of our articles, but this time thought we would do the exact opposite. We usually test the cards with the stock cooler, but we thought we would change that. Therefore we hired Marcus Hultin, also known as Kinc and world record holder in all three 3DMark categories. He will with the help of dry ice and liquid nitrogen investigate what X1800XT and 7800GTX 512 can do under extreme conditions.

Foreplay - ATI Radeon X1800XT

Cooling Core (MHz) / Memory (MHz)

Stock cooling, default voltage ----- 658 / 841

Zalman air cooling + memory heatsinks ----- 740 (1.50vgpu) / 920 (2.0vddr/2.2vio)

Foreplay - nVidia Geforce 7800GTX 512MB

Cooling Core (MHz) / Memory (MHz)

Stock cooling, default voltage ----- 630 / 970

Stock cooling, modified GPU-voltage ----- 682 (1.65V) / 970

Conclusion :

With an entire weekend with curses and an endless stream of problems I feel pretty good about this. It's not as fun as when things don't break, but then again you do learn something from it. Unfortunately this happened this time and a GTX512 card broke, but worse things can happen and believe it or not, that is exactly how it feels and has to feel to keep you going and not make you give up forever. As long as you feel this way you can always come back with more energy and better results. We did manage with some really impressive results with air cooling and If you ask me (Kinc) I prefer air cooling at all times, as it's the small things that counts. When it comes to knowledge it just feels like you gain more from it.

After the intensity from the benchmarking sessions has settled you start to look around and actually notice the workspace where you've been spending most of your time the last couple of days. Many would say that it was far from pretty, chaos is another word.

Benchies

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