The gap changes with resolution.
CPU differences shrink as resolution rises — at 4K the graphics card does most of the work.
| Resolution | i3-12100F | i7-10700K | Difference |
|---|---|---|---|
| 1080p | 72 | 69 | +4% |
| 1440p | 68 | 67 | +1% |
| 4K | 64 | 64 | 0% |
In a real build with a RTX 3080.
Specs alone don’t tell you which to buy. Here is what each one does when it’s actually paired up, at 1440p.
| Game (1440p, paired with the RTX 3080) | i3-12100F | i7-10700K |
|---|---|---|
| League of Legends | 290 fps | 288 fps |
| Counter-Strike 2 | 248 fps | 246 fps |
| Grand Theft Auto V | 125 fps | 125 fps |
| Elden Ring | 104 fps | 104 fps |
| Cyberpunk 2077 | 79 fps | 79 fps |
| Starfield | 78 fps | 78 fps |
Modelled from benchmark data, not measured for every pairing. Our published error rate is 21.6% mean absolute error.
So which should you buy?
Whichever is cheaper on the day. There is roughly 1% between them at 1440p, which you will not notice in a game.
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Common questions.
Straight answers on the i3-12100F versus the i7-10700K.
Is the i3-12100F better than the i7-10700K?
They are close enough to call a tie. At 1440p the i3-12100F scores 68 on our index against 67 for the i7-10700K — a gap of about 1%, which is inside the margin where you would not feel a difference while gaming. Buy whichever is cheaper or easier to find.
Does the i3-12100F or i7-10700K bottleneck a RTX 3080?
Paired with a RTX 3080 at 1440p, the i3-12100F build comes out balanced, and the i7-10700K build comes out balanced. Being GPU-bound is the healthy outcome — it means the graphics card is the part working hardest.
Is it worth upgrading from the i7-10700K to the i3-12100F?
No. A 1% index gap will not be visible in games, and the money is better spent on the other side of the build — usually the GPU.
Which is better value, the i3-12100F or the i7-10700K?
On performance per dollar at MSRP, the i3-12100F wins. The i3-12100F lists at $97 for an index of 68, and the i7-10700K at $375 for 67.
Check either one against your build.
Pick a CPU and its counterpart, and get a verdict at all three resolutions in under 30 seconds.