Capacity matters more than speed for gaming.

Yes, 8GB to 16GB is a much bigger upgrade than going from 2666 to 3600 MHz, assuming you’re already running dual-channel.

Here’s the deal: if you only have 8GB, you are probably hitting your page file constantly. That means the system is swapping to your SSD or hard drive, which causes stutter, longer load times, and general choppiness. Modern AAA games can easily use 10-12GB, and background apps like Discord, Chrome, or even Windows itself eat into the rest. Going to 16GB eliminates that bottleneck entirely. It’s a night-and-day difference.

RAM speed matters, but it’s more of a fine-tune. The jump from 2666 to 3600 might get you a few extra FPS (maybe 5-10% in CPU-bound scenarios), but it won’t fix stuttering from insufficient capacity. Also, the real benefit of faster RAM is tied to the CPU – Ryzen CPUs love fast RAM; Intel is less sensitive. But capacity scaling is universal.

Spend the money on another 8GB stick first. If you already have 16GB, then consider speed. But if you’re choosing between the two for a new build or upgrade, capacity wins every time.

Future You will thank you when a game doesn’t stutter during a firefight.