As most of you know, with most video cards 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 to 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 tools for overclocking NVIDIA and ATI videocards is our own AfterBurner which will work with 90% of the graphics cards out there. We can really recommend it, 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, to not increase the frequency any higher than 5% on 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.
Core Clock: 980 MHz
Core Clock: 1072 MHz
Core Clock: 1147 MHz
Boost Clock: 1033 MHz
Boost Clock:1137 MHz
Boost Clock: ~1306MHz
Memory Clock: 6008 MHz
Memory Clock: 6000 MHz
Memory Clock: 6732
Now then, overclocking did get more complicated as increasing the Boost functionality has an effect on voltage and thus power consumption which effects the maximum allowed board power and so on. So really it is a matter of trial and error and finding your preferred or maximum balance in terms of extra performance versus noise levels.
We found a very sweet tweak that will bring your boost frequency towards 1250~1306 MHz stable, it will fluctuate depending on power draw / limits. Feel free to try our settings yourself. We applied:
Power Target 115%
Priority set to temperature
GPU clock +75 MHz
Memory clock +358 MHz
Voltage +12 mV
Fan control RPM default
With the physical board power limit you are going see all card roughly ending at this overclock and boost frequency. We now have a hint extra performance at our hands on top of the factory overclock, have a peek at the results when overclocked.
For all overclocked games above we have used the very same image quality settings as shown before. Overall we have been able to get another 10% performance out of those graphics card.
EVGA GeForce GTX 1070 SC Gaming review We review the EVGA GeForce GTX 1070 SC Gaming armed with 8GB GDDR5 graphics memory. Now we all like the reference founders edition cards, but let's face it, aren't the proper board partner cards so...
EVGA GeForce GTX 780 Ti SC SuperClocked ACX Review In this review we test the EVGA GeForce GTX 780 Ti SC SuperClocked ACX review, armed with that 450W cooler and our FLIR camera we'll see if it really is good cooling. Oh and hey, SC means a factory o...
EVGA GeForce GTX 780 Classified review We review the EVGA GeForce GTX 780 Classified, this graphics card is equipped with NVIDIA's second to best flagship GPU. Combined with an all custom PCB design and a lot of tweaking features this product will be enticing for a lot of you guys.
EVGA GeForce GTX 760 SC ACX review In this article we review the EVGA GeForce GTX 760 SC ACX edition, this particular model comes with a dual-slot two fan ACX cooling solution. That boils down to a more silent product versus and great cooling performance. EVA offers the card factory overclocked at some pretty impressive clock frequencies. Join us in this review and let's see if the 269 USD ACX model will be worth it for you.