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Quick Answer
The best CPU for the RTX 4080 Super is the Ryzen 7 7800X3D for gaming or the i7-14700K for gaming plus productivity. At 1440p and 4K, the 7800X3D's V-Cache delivers the smoothest gaming experience, while the 14700K adds multi-threaded power for creators.
The 7800X3D extracts every frame from the RTX 4080 Super thanks to its V-Cache. At 1440p, it leads all CPUs in 1% low frame rates, meaning fewer stutters and smoother gameplay in demanding titles. Lower power draw (120W) versus Intel alternatives is a bonus.
If you stream, edit videos, or compile code alongside gaming, the 14700K's 20 cores provide meaningful multi-threaded advantages. Gaming performance is within 3% of the 7800X3D at 1440p and identical at 4K.
Surprisingly, the Ryzen 5 7600 loses less than 5% versus the 7800X3D when paired with the RTX 4080 Super at 1440p. If you are budget-conscious and building for 4K, this CPU saves $260 with minimal performance impact.
Our Verdict
The 7800X3D is the best gaming CPU for the RTX 4080 Super. If you need productivity power too, the i7-14700K matches closely. At 4K, even the Ryzen 5 7600 delivers nearly identical results.