As most of you with most videocards know, you can apply a simple series of tricks to boost the overall performance a little. You can do this at two levels, namely tweaking by enabling registry or BIOS hacks, or very simple, tamper with Image Quality. And then there is overclocking, which will give you the best possible results by far.
What do we need? One of the best tool for overclocking NVIDIA and ATI videocards is our own Rivatuner that you can download here. 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.
Where should we go ? Overclocking: By increasing the frequency of the videocard's memory and GPU, we can make the videocard increase its calculation clock cycles per second. It sounds hard, but it really can be done in less than a few minutes. 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. Example: If your card runs at 500 MHz (which is pretty common these days) then I suggest you don't increase the frequency any higher than 25 to 50 MHz.
More advanced users push the frequency often way higher. 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. Usually when you are overclocking too hard, it'll start to show artifacts, empty polygons or it will even freeze. Carefully find that limit and then back down at least 20 MHz from the moment you notice an artifact. Look carefully and observe well. I really wouldn't know why you need to overclock today tested cards anyway, but we'll still show it ;)
All in all... do it at your own risk.
Overclocking: Call of Duty 4
COD 4 Image Quality setting:
4x Anti Aliasing
16x anisotropic filtering
All settings maxed out
Though the ECS card already is pre-overclocked for you, there's still a little headroom left. Though it's not very much. We were able to push the Core frequency towards 680 MHz and the memory towards 2050 MHz. Not bad, yet the performance gain is really nihil. At 700 Mhz we'd get persistent lock-ups.
ECS GeForce GTX 560 The GeForce GTX 560 we'll review in this article comes from ECS, out of the three products GTX 560 tested today here on Guru3D.com this one is reference clocked, has a reference design and a reference cooler. So this product will be the baseline performance product. Now that does not mean a sober product contrary, baseline performance is pretty good for the money. And next to that, we all know you'll gain the most from the less expensive products one you go and tweak them.
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