Is the Core i9-13900KS good for gaming?
Yes — it sits in the top 8% of desktop processors we model for gaming, and it will not be the limiting component in any realistic pairing at 1440p or above.
What GPU should I pair with a Core i9-13900KS?
The closest match at 1080p is the GeForce RTX 5070 Ti, wasting only 1.5% of the combined potential at around 175 fps. Anything materially faster will sit partly idle at this resolution, though it can still be the right buy if you plan to move to 1440p or 4K.
What a Core i9-13900KS is good for
This is among the fastest gaming processors we model, which means it will effectively never be the thing limiting you at 1440p or 4K. Pair it with anything and the graphics card will be the constraint.
Its value shows at 1080p with a high refresh rate monitor, in simulation and strategy titles that are genuinely processor-bound, and in keeping a build useful across two or three graphics card upgrades.
Performance cores and efficiency cores
This chip mixes 8 performance cores with 16 efficiency cores. Games run almost entirely on the performance cores; the efficiency cores absorb background work so it does not interrupt them. That is genuinely useful, but it means the headline core count overstates gaming capability — our model counts about 16.2 effective cores here, weighting an efficiency core well below a performance one.
Hyper-threading is enabled, adding 32 total threads.
Where it sits
Ranked 16 of 201 desktop processors for gaming. Nearest faster: Ryzen 9 7900 , Ryzen 9 7900X3D . Just below: Core i9-14900K , Core i9-14900KF . Full method on the methodology page.