So I found out my GTX 970 (I bought it on september last year, so it's not that old) has 74.3% ASIC, with an avg. of 69.9%. I tried to OC my GPU (MSI GTX 970 4GB Armour 2X). The stock speed for the GPU is 1102MHz, OC'ed to 1241 and it goes to 1316 with Boost. I managed to OC it to 1.5GHz and it's stable as fck. No artifacts, low temps (avg of 75C with 75% fan speed on the new Unigine benchmark, runned 3 times). The artifacts appear only at 250MHz OC (some random collors and flares appear on the screen). My questions are: am I lucky or 1.5GHz is quite normal on GTX 970's? And, is it stable to run 1.5GHz if I don't get artifacts?