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.