ECC RAM won't hurt your gaming FPS

ECC RAM won’t hurt your gaming FPS.

Not in a way you’d ever notice. The performance overhead from error checking is tiny—like 1-2% at most in synthetic benchmarks, and basically zero in real gaming workloads.

Most games don’t hammer memory bandwidth hard enough for ECC to matter. Your GPU is the bottleneck, not whether your RAM double-checks every bit. The real cost is the premium you pay for ECC sticks and the motherboard that supports it, not FPS.

If you already have ECC hardware (say from a workstation build), don’t bother swapping it out for gaming. It just works. If you’re building from scratch for gaming only, skip ECC—not because of performance, but because it’s more expensive and not worth the hassle for a toy.

The only exception: if you’re also running memory-sensitive compute tasks (simulations, large renders) overnight, the stability might justify the cost. But for gaming? You won’t feel it.