BenchPair

Core i9-11900KF bottleneck & gaming FPS

Ranked 100 of 201 desktop processors for gaming in our database (50th percentile). It can sustain roughly 126 fps in a typical AAA title regardless of resolution — that ceiling is what decides whether a graphics card is worth pairing with it.

SpecificationsRocket Lake · 2021
ArchitectureRocket Lake
Cores8
Threads16
Boost clock5,300 MHz
L3 cache16 MB
TDP125 W
Released2021
Core i9-11900KF FPS in popular games1080p, 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 9070
Cyberpunk 2077 128 fps 85 fps
Fortnite 161 fps 159 fps
Counter-Strike 2 182 fps 179 fps
Baldur's Gate 3 109 fps 108 fps
Red Dead Redemption 2 143 fps 95 fps
Microsoft Flight Simulator 2024 72 fps 71 fps
Best GPU for the Core i9-11900KF1080p, 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 9070 124 0.1%
Radeon RX 6950 XT 124 0.2%
GeForce RTX 3080 Ti 20 GB 123 0.6%
GeForce RTX 3080 Ti 123 0.6%
GeForce RTX 5070 123 1%
Radeon RX 6900 XT 121 2.4%
Against its closest neighbours1080p, high
PartEst. FPSDifference
Core i5-13400F 124 fps 0%
Core i9-11900K 124 fps 0%
Core i9-11900KF 124 fps this part
Core i9-11900 122 fps -2%
Core i9-11900F 122 fps -2%

Every row measured against the same graphics card, so the difference shown comes from the parts themselves rather than from unrelated systems.

Is the Core i9-11900KF good for gaming?

It is adequate rather than strong. It ranks 100 of 201, which is fine with a mid-range card at 1080p, but it will hold back anything substantially faster. Check the pairing before a large graphics upgrade.

What GPU should I pair with a Core i9-11900KF?

The closest match at 1080p is the Radeon RX 9070, wasting only 0.1% of the combined potential at around 124 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 i9-11900KF is good for

This chip is capable at 1080p with a mid-range card, but it will become the limit if you pair it with something substantially faster. If you are considering a large graphics upgrade, check the pairing first — you may find most of the new card sitting idle.

Moving to a higher resolution is the cheapest way to get more out of it, because it shifts work onto the card and away from the chip.

A small cache holds this chip back

16 MB of L3 is modest by current standards, and it costs this chip more in games than its clock speed suggests. Game engines walk large, scattered data structures, so a small cache means more trips to main memory and more stalls on the render thread. Memory speed and timings matter unusually much on a part like this.

Where it sits

Ranked 100 of 201 desktop processors for gaming. Nearest faster: Core i5-13400F , Core i9-11900K . Just below: Core i9-11900 , Core i9-11900F . Full method on the methodology page.