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: 915 MHz
Core Core Clock: 915 MHz
Core Clock: +150 MHz
Boost Clock: 980 MHz
Boost Clock: 980 MHz
Boost Clock: ~1228 MHz
Memory Clock: 6000 MHz
Memory Clock: 6000 MHz
Memory Clock: 7020 MHz
Now with the Dynamic boost function of the series 600 cards overclocking is definitely more complicated to work with. It remains simple enough though if you know what and how to do it.
In afterburner we go into the preferences. We can widen up the TDP limitations a bit, set the power limiter towards 122%. That way the Dynamic boost function won't down clock all the time to meet it's upper threshold in TDP limitations.
We now add another 149MHz towards the graphics core. In the upper monitoring graph you can see that we had a stress application running in the background. The dynamic clock will still kick as well with the power limier now loosened up.
You'll notice in the hardware monitor that we pass 1200 MHz on the graphics core absolutely stable and for the memory we ended at 7020 MHz (effective data rate). At this stage the cooler RPM was set at 70% as such the noise level now has risen towards roughly 43~44 DBa.
We now have some extra performance at our hands, have a peek at the results when overclocked.
Above, Crysis 2, same maxed out image quality settings as before yet now with added overclock results:
High Resolution Texture Pack
Ultra Quality settings
Level - Times Square (2 minute custom time demo)
Above, 3DMark 11 - the Performance test and score. As you can see, there is an additional bump in this very GPU limited software, lovely.
Above, Alien versus Predator, in 1920x1200 at 4xAA and 16X anisotropic filtering
MSI GeForce GTX 960 Gaming OC review We review the MSI GeForce GTX Gaming OC, the card comes with a newly revised TwiNFrozr model cooler. And that makes it silent and deadly as you will not hear this product. The GTX 960 is introduced in th...
Gigabyte GeForce GTX 960 G1 Gaming review In this review we check out the Gigabyte G1 Gaming GeForce GTX 960. This product is gorgeous as it is the most silent of all the cards we tested. Next to some fantastic looks the product comes factory...
ASUS GeForce GTX 960 Strix 2-way SLI review We review the ASUS Strix edition of the GeForce GTX 960. Actually not one, but two of them as we go SLI all the way as well. This premium version of the GTX 960 comes with an all silent design, good l...
KFA2 GeForce GTX 960 EXOC review KFA2 aka GALAX releases their mid-range GeForce GTX 960 EXOC edition, yep as in Extreme Overclocked. The product comes factory overclocked with a boost clock of 1266 MHz. The product has a custom and ...