Hello overclockers,

I'm curious about overclocking a graphic card. I know, it ain't that easy and very sensitive unlike oveclocking a processor.
I have plenty Sapphire HD7700 Ghz Edition OC in my hands and I'm decided to see how far will a overclocked HD7770 go in gaming.

Recently, I overclocked one of my HD7770 to these :

Core Clock : 1150Mhz -> 1175Mhz
Memory Clock : 1250 -> 1375Mhz

With these settings, I gained extra 16GB in memory bandwidth and 7 GTexels of Texture which is pretty awesome.

Temperature is very good, around 34-35c during idle (Browsing and musics) and never surpassed 68c during heavy gaming.

The question is, will it decrease my graphic card lifetime? Even with this low temperature? I din't change any voltage such as the vcore.
So means, I'm on the save range of overclocking.

shoundnt if you keep the temperature cool

should be ok. but if got any artifacts in game, then better lower down the clock.