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Questions about GPU Overclocking

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  • Overclocking
  • GPUs
Last response: in Overclocking
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February 22, 2014 10:18:52 AM

Hello everyone.

Recently, I got myself a dedicated card from NVidia, a GT 620. It's an extremely low-end card, so I'm interested in overclocking it to get more decent framerates in games. I've tweaked a few settings using MSI Afterburner, and I have a few questions to ask the community about. I have decent experience with computer hardware, but I'm a complete noob regarding overclocking.

My first question is about the card's safety during overclocking. Is there any risk of permanent damage during overclocking if I do not touch the voltages/raise the temperature by insane amounts? After raising a few settings on the card, several glitches began to show up in the screen, or the computer would simply crash to a blackscreen. However, this was solved by force-restarting the system. Is the card in risk of being damaged in these situations?

Secondly, I'd like to ask about the card's temperatures. It seems to get around 65C° when running, and it never crossed the 70°C line. It runs at 700MHz Core/600MHZ Memory values stock, and I found no problem raising those numbers to 750/650 MHz each. Are these good/safe numbers for the card? Despite being a very small increase, it seems to give a pretty decent boost in framerates, and I'd keep these numbers if they don't risk the card's safety.

Lastly, I'm confused about the fanspeed of the card. I'm not really disturbed by the card's fan running at 100% speed at all times, since it'd make the card run cooler. However, would locking the card to 100% fanspeed risk/reduce the fan's lifetime? The noise factor isn't really a problem, and I wouldn't mind a small amount of noise if that meant a cooler card running.

Thanks for the help.

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a b K Overclocking
February 22, 2014 10:34:01 AM

This should work with most games. Keep in mind that it's not just the clocking speed that is a factor in the performance of a graphics card. Other bigfactors are available RAM, resolution, memory clock, interface, and a host of other things that are relative to the level of the card, its design and cost. Usually, you get what you pay for.
The basic GT620 would have problems with someof the more intensive game graphics, so simply improving the clock speed may not be sufficient on its own to overcome this with ALL games. But, you should see some noticeable improvement with the overclocked settings.

Overclocking may cause More heat, reduces the life of the component, voids the warranty, risk of serious damage or death to whatever you're overclocking AND other components if youdon't know what you're doing, overclocking draws more power.

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