Our GPU score jumped up another 1400 points and the overall P score just passed the 14.000

So when we fire up 3DMark Vantage again we see the impact of the overclock. As you can see we instantly gained another 10% additional performance. We always see the framerate spike at 1280x1024 once we overclock, after which things normalize a little.

So above we spot BIA: Hell's Highway again, same setup and image quality settings. 1134MHz standardĪs you can see we just clocked the much cheaper GTX 275 model far beyond GTX 285 clock frequencies.

Memory Data Rate: 1282MHz (2564 effective) vs.

So the reference GTX 275 really is a nice overclocker. I really wouldn't know why you need to overclock today's tested card anyway, but we'll still show it ) Carefully find that limit and then back down at least 20 MHz from the moment you notice an artifact. Usually when you are overclocking too hard, it'll start to show artifacts, empty polygons or it will even freeze. Usually when your 3D graphics start to show artifacts such as white dots ('snow'), you should back down 10-15 MHz and leave it at that. More advanced users push the frequency often way higher. Example: If your card runs at 600 MHz (which is pretty common these days) then I suggest you don't increase the frequency any higher than 30 to 50 MHz. I always tend to recommend to novice users and beginners not to increase the frequency any higher then 5% of the core and memory clock. It sounds hard, but it really can be done in less than a few minutes. Overclocking: By increasing the frequency of the videocard's memory and GPU, we can make the videocard increase its calculation clock cycles per second.

If you own an ATI or NVIDIA graphics card then the manufacturer actually has very nice built in options for you that can be found in the display driver properties. One of the best tool for overclocking NVIDIA and ATI videocards is our own Rivatuner that you can download here. And then there is overclocking, which will give you the best possible results by far. You can do this at two levels, namely tweaking by enabling registry or BIOS hacks, or very simple, tamper with Image Quality. As most of you with most videocards know, you can apply a simple series of tricks to boost the overall performance a little.

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