Does amount of RAM cause a game to perform poorly?

Dieter10 · Nov 20, 2016

I'm pretty new to the PC world, so excuse my lack of knowledge. I recently purchased a new mobo, new ram, and new cpu. These are the specs
CPU:Intel Core i5-6500
Mobo-MSI B150 Gaming M3
GPU-MSI Radeon R9 390 Gaming 8G
RAM-Ballistix Sport LT 4GB

http://www.newegg.com/Product/Product.aspx?Item=N82E16820148982

I heard people say that the speed of the RAM doesnt affect gaming performance. However I used to be able to run games fine, and now the games tend to be laggy, and lose a lot of FPS. So, does amount of ram contribute to performance?

Aeacus · Nov 20, 2016

Short answer: Yes.

Long answer:
When game is using RAM and there's not enough free RAM to use, your PC will start to erase the old data from the RAM to write new data in it. During this erase and write cycle you can experience game lags since it takes some time to erase the old data.

For your build, i suggest that you get a second 4GB RAM stick, so you have more RAM to go around while running it in dual-channel.
Here's a nice comparison between single-channel and dual-channel speeds, despite the total amount of RAM being 8GB,
comparison: http://ram.userbenchmark.com/Compare/HyperX-Fury-DDR4-2133-C14-1x8GB-vs-HyperX-Fury-DDR4-2133-C14-2x4GB/3555vs3554

Tradesman1 · Nov 21, 2016

Yes, depending on the game DRAM speed can also effect play. Most modern games call for 8-16GB of DRAM and developers are utilizing DRAM more and more both in quantity and speed

Dieter10 · Nov 22, 2016

Aeacus :

Thanks for the help, I will be getting another stick of ram soon.

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