I'm wondering about the performance differences in RAM speeds, particularly how much it affects overall PC performance. In my area, the lowest priced RAM I can find is a DDR5 16GB at 4800 MHz, while faster options like 5600 MHz and 6000 MHz are three times as expensive. There's also a 32GB option that costs about 40% more than the 16GB version. I've read that there might be a 10-15% performance difference when moving from 4800 MHz to 6000 MHz, but is that accurate? I also have an AMD GPU and CPU, and I'm curious how that affects the situation, especially for tasks beyond gaming.
4 Answers
I think the XMP profiles you see are more of a rough guideline. Depending on your RAM chips, you can set them manually for better performance. Just remember that having only 16GB of RAM can be limiting for heavy tasks. If you tend to use a lot of applications simultaneously or work with large files, consider upgrading to 32GB.
In gaming, faster RAM can help, especially at lower resolutions like 1080p. Generally, you might see a few more frames per second, but at higher resolutions like 1440p or 4K, the difference becomes less noticeable since the GPU tends to be the bottleneck most of the time.
That 10-15% figure seems to be right for certain situations, but in real life, you probably won't notice a huge difference. It might only translate to a few extra frames in some games, particularly in the lower end of performance.
There was a recent video from Hardware Unboxed on RAM speeds that addressed this directly. They mentioned that going from 4800 MHz to 6000 MHz could yield a performance increase of about 10-15%, especially in gaming scenarios. The importance of RAM speed might vary for non-gaming tasks like video editing or 3D rendering, but energy efficiency and speed are still crucial there, too.

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