Overclocking a GPU with only a heat-sink

CDDogg

Distinguished
Aug 20, 2015
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I have a Radeon R5 230 2GB DDR3 GPU. It only has a heat sink so it used to get really hot under normal use. Now that it's in my new case it has 2 fans blowing directly on it and a chassis fan keeping the entire rig cool. I've already overclocked it a little bit using AMD OverDrive in the Catalyst Control Center and seen no danger. However I only increased the core clock and the memory clock by 25%. I'm really curious how much performance I can get out of the card and AMD OverDrive gives me the option to go up another 25%. Do you think it's a safe idea to try, or should I just not OC it at all?