Hello, I bought my PC with the i7-4790 long time ago. It originally had a 960 which I upgraded to a 1070 several years ago. It was all good and enough for a 1080p TV but now I have a 4K one and would like to play older games at 4K medium/2K high. Like Batman Arkham Origins, Arkham Knight, Tomb Raider Trilogy. Would 4790 be a terrible bottleneck for a 3070? I've read that with increase in resolution you mostly need a better GPU only. Another thing is the RAM. I can't play Assassin's Creed Origins at a locked 60 FPS at 1080p because of stuttering in the cities. I've read that's because of slow RAM. I have 16 GB DDR3. Would the RAM be even a worse bottlenceck? All in all, is it even worth it to upgrade this PC at all? Again, I'm not expecting to play the latest games with it but to clean up my Steam library . A 3070 would cost around 330 Eur here while if I was to buy a new PC I would buy it for several years ahead and would need to spend at least 1500 Eur.