How does Ryzen 5 8600G handle gaming, and how large is the gap versus cheaper models?

  The Ryzen 5 8600G's value is its iGPU. Without a dGPU: confirm dual-channel DDR5, memory speed, and the BIOS graphics power allocation — light 1080p gaming is the realistic target, and 1440p/4K is out of scope.

  With a dGPU it's just a normal CPU; judge by the GPU model and TGP, with the CPU mattering more at 1080p high refresh or with background work. When comparing cheaper parts, hold memory and power mode constant and use frame times from the same game — no unmeasured FPS claims. For iGPU gaming, get high-speed dual-channel memory.