BenchPair

Core i9-12900KS bottleneck & gaming FPS

Ranked 50 of 201 desktop processors for gaming in our database (75th percentile). It can sustain roughly 155 fps in a typical AAA title regardless of resolution — that ceiling is what decides whether a graphics card is worth pairing with it.

SpecificationsAlder Lake · 2021
ArchitectureAlder Lake
Cores8 performance + 8 efficiency
Threads24
Boost clock5,500 MHz
L3 cache30 MB
TDP150 W
Released2021
Processor ceiling by game1080p, high

The frame rate this chip could sustain with an infinitely fast graphics card. It is almost the same at every resolution, because rendering more pixels gives the processor no extra work.

GameCPU ceilingWith Radeon RX 7900 XT
Cyberpunk 2077 161 fps 105 fps
Fortnite 199 fps 196 fps
Counter-Strike 2 224 fps 221 fps
Baldur's Gate 3 135 fps 133 fps
Red Dead Redemption 2 176 fps 117 fps
Microsoft Flight Simulator 2024 89 fps 87 fps
Best matched graphics cards1080p, high

Ranked by how little performance the pairing wastes. Anything much faster than the top entry will sit partly idle at this resolution — though it may still be worth it if you plan to move to 1440p or 4K.

Graphics cardEst. FPSUnused
Radeon RX 7900 XT 152 0.3%
GeForce RTX 4070 Ti Super 153 6.7%
Radeon RX 9070 XT 153 6.8%
GeForce RTX 3090 Ti 142 7.2%
GeForce RTX 4070 Ti 137 10.2%
Radeon RX 7900 GRE 136 11.2%

What a Core i9-12900KS is good for

A strong mainstream gaming chip. It will keep up with most graphics cards at 1440p and above, and only starts to show its limits at 1080p with a fast card and a high refresh rate panel.

For the majority of builds this is enough processor, and money is better spent on the graphics side.

Performance cores and efficiency cores

This chip mixes 8 performance cores with 8 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 12.8 effective cores here, weighting an efficiency core well below a performance one.

Hyper-threading is enabled, adding 24 total threads.

Where it sits

Ranked 50 of 201 desktop processors for gaming. Nearest faster: Core Ultra 7-265, Core Ultra 7-265F. Just below: Core i7-13790F, Ryzen 5 7500X3D. Full method on the methodology page.