Yes, a 4570T is well-suited for gaming due to its powerful performance and gaming-focused features.
If nothing can be attached, the IGPU can still run at lower resolutions like 1080p in CS:GO. It won’t go beyond that without a proper GPU.
Extremely slow clock rate, prevent overclocking to 3.6 GHz (remains modest, typical for entry-level gaming processors)
The game needs a GTX 460 or Radeon HD 5770. The i5-4570T’s HD 4600 is much less powerful, making 720p or low settings difficult to achieve smoothly.