Core 2 Duo E6600 vs Core i5-6600

Neither, they're within 1% of each other across 100+ games. Pick based on price, availability, or platform compatibility.

They trade blows depending on the game. Toggle the resolution selector above to compare per-game FPS at 1440p and 4K.

Performance: Core 2 Duo E6600 scores 4/100, Core i5-6600 scores 31/100. They also differ in core count, clock speeds, L3 cache, and power draw. Full breakdown in the specs section above.

Depends on the rest of your build, especially your GPU. Swap the paired GPU in the FPS section above to see if it limits performance, or use our bottleneck calculator for a full analysis.

Both are solid choices. Compare your current CPU against each one to see the exact FPS gain.