I’m way worse framerates, battery life overall performance with GTA 4. I really didn’t expect this as GTA 5 ran an extremely stable 60 FPS and only 10 watt battery drain. Even with the explosive bullets cheat and 5 stars not once did I see a frame drop. With 4 though, I had to drop it to 40 fps and still encounter occasional freezing with medium settings.
A game is just software and if it’s unoptimized, it will run like shit regardless of great hardware.