I can't wait a few days until i receive the items to ask, what bottleneck can i expect with a weaker 2 core CPU? It is the Intel G2020 processor and the GPU is ASUS 750ti OC. Also i have stock 4gb ram that came with the system, am i going to get much better performance if i upgraded the ram? I would consider upgrading the CPU but then that means i would have to get a new Windows License key...