basically i wanted to know how many years would a gtx 970 be expected to last at lets say mid settings on 1080 screen vs gtx 980 with the same settings?
They both will still run great for at least another year out. They 980 may be able to outlast the 970 a tiny bit longer, but about the same. If you are wondering which to buy, get the 980Ti if at all possible.
Crippling effect? What utter rubbish. Have you not seen it benchmarks? It does brilliantly at 1080p and has an excellent price performance ratio. If running higher resolutions I would have concerns about the VRAM but even then I couldn't call it crippled
They both will still run great for at least another year out. They 980 may be able to outlast the 970 a tiny bit longer, but about the same. If you are wondering which to buy, get the 980Ti if at all possible.