ECS GeForce GTS 250 1024MB review | test -
Overclocking & Tweaking
Overclocking & Tweaking
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 600 MHz (which is pretty common these days) then I suggest 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.
Now here's where things get even more interesting. Thecard seems to be a decent overclocker.
GPU clock frequencies:
- The reference clock for the card is 738 MHz, we ended up at 802 MHz.
- The shader domain clock for the card is 1836 MHz, we ended up at 1958 MHz.
- The memory clock for the card is 1101 MHz (2202 MHz effective), we ended up at 1341MHz (=2682 MHz effective!).
Compared to the TwinTech model we recently tested the ECS GTS 250 clocks a lower on Core and Shader domains. However it makes up with the splendid memory overclock which we were able to take towards ~2700 Mhz.
As always we used Rivatuner, here's what such an overclock will get you extra, performance wise:
* Brothers in Arms Hells Highway -- same settings as before (all maxed out).
Please, don't over-do your tweaks though, and be careful as overclocking typically is not covered by product warranty.
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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