My specs are:
Processoe: Intel (R) Core (TM) i3-5020U CPU @ 2.20GHz
Installed memory (RAM) 8.00GB
System type 64-bit Operating System, x64-based processor
Most Helpful Guy
For games usually one or two cpu cores is better than 4 or 8 slower cores (more than two are mostly not used and more used for marketing reasons). Like some Samsung phones had 8 cpus but the iPhone was pretty much as fast with 2 of a similar speed of all 8 of Samsung's. Apple didn't promote specs though.
Your cpu is power good and I think would run most games fairly well. A faster cpu would help with some games of course. A faster video card would give you the best graphic improvement but that depends on if the game is graphically demanding. I think your RAM is okay. You can run your task manager (ctrl + alt +delete) with a game running and see how much RAM it's using if you're curious.
If you Google cpu and video card benchmarks, there are sites that will tell you the parts performance with certain games. I'm not sure which site to use though.