Hello gamers, I have recently upgraded my system with a new graphics card, the R9 270x, but it's not working as it should. It's almost three times as powerful as my old one, but I am not really seeing such a big improvement. The improvement is there, but it's not as good as it should be. For example, Witcher 2 and Dragon Age Inquisition aren't as smooth as they should be. I believe this is due to my CPU bottle-necking. Here are my specs: CPU: Quad Core Q9400 @ 2.66GHz GPU: ATI R9 270x (Used to be HD 4850) RAM: 4 GB DDR3 G. Skill (very low frequency, like 400-800) HDD: 1 TB (no idea which) I also believe I should upgrade my RAM to 8 GB, because 4 is low for today's standards and when doing a check in one of those programs like CPU-z and AIDA, it showed my RAM frequency to be, I think, only 400 MHz which is very low. Since most of today's RAM memories work at around 1600-2400 MHz. Any help? Friend wants to get himself a new CPU and he'll give me his one most likely, which is an I5-2400 I think. Is that any good, and am I going to need a new motherboard for it? Current motherboard is Asus P51GT4-M LX3. All help is welcome!