Intel Core i5-12400F + NVIDIA GeForce RTX 3080 Ti
Will they bottleneck? Here’s the verdict at 1440p gaming — and how it shifts with resolution.
Intel Core i5-12400F
6c / 12t · 4.4 GHz · 65W
NVIDIA GeForce RTX 3080 Ti
12 GB VRAM · 34.1 TFLOPS · 350W
Balanced. Neither part is meaningfully limiting the other.
Well-balanced for gaming at 1440p — both parts are within tolerance.
GRADE
A
PSU MIN
750W
CONFIDENCE
86%
THE SHORT ANSWER
The Intel Core i5-12400F + NVIDIA GeForce RTX 3080 Ti pairing is rated Grade A for 1440p gaming with a recommended 750W PSU. Resolution-by-resolution: 1080p: 3% CPU-bound, 1440p: balanced, 4K: balanced. CPU and GPU bottleneck verdicts depend on resolution — a pairing that is CPU-bound at 1080p is often perfectly balanced at 4K because the GPU does more work per frame as pixel count increases.
Engine accuracy: 21.6% MAE on measured FPS · methodology
Plain-English breakdown.
What this pairing actually means when you sit down to play.
The Intel Core i5-12400F + NVIDIA GeForce RTX 3080 Ti pair is well-balanced at 1440p gaming. That story changes at other resolutions — see the breakdown below. As a build, it grades high-end (A).
Expect around 319 FPS in League of Legends and ~86 in the more demanding Starfield — both at 1440p with high or ultra presets. Resolution matters more than most calculators show — the same parts give different verdicts at 1080p, 1440p, and 4K because GPU work scales with pixel count while CPU work is roughly fixed per frame.
Both parts pull their weight; the highest-leverage next upgrade is to a fully higher tier rather than swapping one side. Plan on at least a 750W PSU — that includes headroom for transient spikes on the NVIDIA GeForce RTX 3080 Ti.
The same pair gives a different answer at 1080p, 1440p, and 4K.
Higher resolutions push work onto the GPU — watch the balance shift.
1080P
3% CPU-bound
1440P
Balanced
4K
Balanced
Expected frame rates in 10 popular games.
At 1440p, high settings — measured where we have benchmarks, modeled otherwise.
- League of Legends319 fps · Estimated · low
- Apex Legends278 fps · Estimated · low
- Forza Horizon 5139 fps · Estimated · low
- The Witcher 3: Wild Hunt141 fps · Estimated · low
- Call of Duty: Warzone112 fps · Estimated · low
- Alan Wake 289 fps · Estimated · low
- Hogwarts Legacy87 fps · Estimated · low
- Starfield86 fps · Estimated · low
Compare similar builds.
Swap one part and see how the verdict moves.
Common questions.
Straight answers for the Intel Core i5-12400F + NVIDIA GeForce RTX 3080 Ti.
Can the Intel Core i5-12400F run the NVIDIA GeForce RTX 3080 Ti?
Yes — the Intel Core i5-12400F runs the NVIDIA GeForce RTX 3080 Ti very well. At 1440p the two are well-balanced (grade A), so neither part meaningfully holds the other back and you get close to the full performance both are capable of.
Will the NVIDIA GeForce RTX 3080 Ti bottleneck the Intel Core i5-12400F?
The Intel Core i5-12400F + NVIDIA GeForce RTX 3080 Ti pairing is rated Grade A for 1440p gaming with a recommended 750W PSU. Resolution-by-resolution: 1080p: 3% CPU-bound, 1440p: balanced, 4K: balanced. CPU and GPU bottleneck verdicts depend on resolution — a pairing that is CPU-bound at 1080p is often perfectly balanced at 4K because the GPU does more work per frame as pixel count increases.
What PSU do I need for a Intel Core i5-12400F + NVIDIA GeForce RTX 3080 Ti build?
For a Intel Core i5-12400F (65W TDP) paired with a NVIDIA GeForce RTX 3080 Ti (350W TDP), we recommend a 750W power supply at minimum. This includes 40% headroom over the parts' combined TDP plus 100W for the motherboard, RAM, fans, and storage.
Run your own combination.
Swap in a different CPU, GPU, resolution, or use case and get a fresh verdict — in under 30 seconds.
Affiliate links — we earn a small commission on Amazon purchases at no cost to you, which keeps the calculator free. Full disclosure.