Date: November 1st, 2005
Article by: Nathan Glentworth (Owner / Head Editor)
Product was submitted by: Hightech
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PRODUCT PICTORIAL & WALKTHROUGH
The rear of the card is void of anything interesting other than the installed passive heatspreader on the back memory modules. This heatspreader does an exceptional job at keep these modules cool as long as you have some proper case ventilation and a front case fan blowing air over this area of the case.
The rear connections are comprised of a standard analog VGA, a video-out and a digital DVI connection. As I have said over and over and over again, dual DVI connection should be the only way new videocards should be released. This will allow people with dual DVI LCD monitors to enjoy their new purchase without having to downgrade to analog.
Now, I know that HIS has bundled in their iTurbo software for easy overclocking, but I was looking to get a little more performance out of this videocard other than the iTurbo maximum clock rates of only 500Mhz core and 500Mhz memory when the stock clock rates are 400Mhz core and 490Mhz(980Mhz DDR). I don't consider that real videocard overclocking but rather a warm safe fuzzy increase that will keep everything cozy and secure. But as overclocking enthusiasts, we never just push things faster by such a small margin, we push it to the limit.
To help push this videocard to its maximum, I installed my favorite ATI overclocking utility called ATITool which was created by TechPowerup and can be downloaded HERE. For this review I used the 0.24 beta 8 version available in their forums which has full X800GTO support. It is a great utility for simple and effective overclocking without any confusion. It even has a built in utility to find the highest core and memory overclock settings without artifacts. I used this feature and it worked absolutely flawlessly. Just hit the find maximum memory button and allow it to hunt for the highest memory overclock and after that has been found, find the maximum core with the memory overclock in place. It has its' own test rendering video that will come up and if there is an artifact, it will lower the clock until no more artifacts are found. After it is found, save the overclock and you are set.
The onboard memory is comprised of eight 2.0ns 32meg Samsung GDDR3 modules with a theoretical maximum speed of 490Mhz (980Mhz DDR).
Let's see how it made out:
Here are the results:
Stock Clock Rates: 400Mhz Core / 490Mhz (980Mhz DDR) Memory
Overclocked Clock Rates: 594Mhz Core / 625Mhz (1250Mhz DDR) Memory
Differences: 194Mhz Core!!!!!! / 135Mhz (270MHz DDR ) Memory
The X800GTO overclock just kept on climbing and climbing and I never though it was going to stop. The memory overclock is pretty standard, but the core overclock was outright RIDICULOUS. How often do you see an almost 200Mhz increase in core clock through overclocking? You usually see 30-50Mhz or perhaps a little more, but close to 200Mhz??!!!! These overclocked rates were tested for hours and I never witnessed one single artifact proving that this overclock is as solid as the great wall of China.
Why waste your time with the small overclock the iTurbo software allows when you can go way beyond its pathetic limits and get some amazing clock rate advances.