RAM Bottleneck Calculator
Find out if your system memory is the weak link in your PC build. Check capacity and speed limits for gaming and rendering.
RAM Bottleneck Check
Select your memory specs to see if your RAM is holding back your CPU and GPU.
RAM is only one piece of the puzzle. Check your CPU and GPU balance below.
Go to Full CPU/GPU Bottleneck Calculator →What is a RAM Bottleneck?
A RAM bottleneck occurs when your system doesn't have enough physical memory to store the assets a game or application needs right now. When this happens, Windows is forced to use your storage drive (SSD/HDD) as overflow memory (the page file).
Because even the fastest NVMe SSD is thousands of times slower than RAM, this causes severe frame drops, massive stuttering, and texture pop-in.
Capacity vs. Speed
- Capacity:If you hit 100% capacity, performance falls off a cliff. For modern AAA games, 16GB is the bare minimum, and 32GB is recommended.
- Speed:If you have enough capacity but slow speed (e.g., DDR4-2133), your CPU has to wait longer for data to arrive. This reduces your 1% low framerates and causes micro-stuttering, especially at 1080p.