As most of you know, with most videocards 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 simply 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. Based on Rivatuner you can alternatively use MSI AfterBurner which will work with 90% of the graphics cards out there. We can recommend it very much, download here.
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 than 5% of the core and memory clock. Example: If your card runs at 600 MHz (which is pretty common these days) then I suggest that you don't increase the frequency any higher than 30 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's tested card anyway, but we'll still show it.
All in all... do it at your own risk.
Check out what we accomplished overclocking wise:
Core Clock: 607 MHz
Core Clock: 700 MHz
Core Clock: 800 MHz
Shader Clock: 1212 MHz
Shader Clock:1400 MHz
Shader Clock: 1600 MHz
Memory Clock: 3348 MHz
Memory Clock: 3348 MHz
Memory Clock: 4000 MHz
That is a significant increase in performance thanks to the overclock.
Now this was a little surprising, but as you can see, the card can overclock higher and that has a very positive effect on overall performance. We applied a little voltage tweaking here (1 volt on the GPU precisely). Play around with that and you will pass the 750 MHz marker, no doubt, maybe even 800 MHz like we did.
Please do give your SOC card a fixed fan RPM of say 70%, which still isn't too noisy.
Above you can see the overclocked results for Call of Duty Modern Warfare 2, same image quality settings as before, in DX10 mode. Blue is the default baseline session we showed you, and then in red the overclocked results, and that is just a downright good result. Coming from reference results, that's 25% to 30% additional performance in the GPU intensive resolutions.
16x Anisotropic Filtering
All settings maxed out
And the last test run, this time with 3DMark Vantage. As you can see we increased the GPU score with roughly 19.000 points to ~20000 on the P score. With the increased FAN RPM temperatures on the GPU will remain at roughly 80 degrees C in this setup. Make very sure your PC is well ventilated.
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