Here's a collection of the most frequently asked questions regarding overclocking of video cards we get.
- What is video card overclocking?
- How do I overclock my video card?
- Is it safe to overclock my video card?
- Which video card is best for overclocking?
- What about the AGP bus frequency?
- Is AGP x2 running at 133MHz as opposed to 66MHz for AGP x1?
- How about cooling for the video card?
What is video card overclocking?
Video card overclocking is basically the same as CPU overclocking, only here you are overclocking the processor and/or the memory modules on the video card.
This increases the speed of your card, and allows for more fps. (frames per second) than when running the card at the standard speed, and especially in the higher resolutions and with 32bit colors you can achieve a significant speed increase by overclocking your video card,
How do I overclock my video card?
There are a number of different programs for doing just that. Entech's Powerstrip is a good program since it supports many different video cards, but there a more elegant solutions made for individual cards out there. 3DFiles has a large collection of utilities for video card overclocking, and probably one for your card too.
Is it safe to overclock my video card?
In general, the answer is YES! As always when dealing with overclocking, you should take precautions in regards to the temperature of the chips on the card. You could place one of our probes (sold with our Thermometer) next to the chip, to make sure it's not running too hot.
Which video card is best for overclocking?
We have had good experience with the following chips:
- NVIDIA TNT2 series
- 3DFX Voodoo3 series
- S3 Savage 4
- Matrox G200
- Matrox G400 series
As with CPU's, you mileage may vary, and there's no telling how high a specific card will go.
What about the AGP bus frequency?
Overclocking the AGP bus gives very little to the performance of your video card, and should therefore be kept as close to the default 66MHz as possible. A severely (usually >80MHz) overclocked AGP bus might even damage you video card, but again sufficient cooling...
Is AGP x2 running at 133MHz as opposed to 66MHz for AGP x1?
No. The AGP bus is specified to always run at 66MHz no matter if it's AGPx1, x2 or x4.
How about cooling for my video card?
Usually it's enough to just ensure that you have good cabinet ventilation. Off course, a bigger heat sink or a fan pointed directly at the heat sink is even better.
More to come...