The Full Guide to RAM Speeds: DDR4 2400 vs 2666 vs 3000 vs 3200 vs 3600 vs 4000 MHz

2666mhz will provide a slight improvement over 2400mhz (particularly in AMD builds).

For gaming, this will translate to a couple of extra FPS in some CPU-intensive titles (i.e. only go 2666MHz if it’s close to the same cost).

The speed difference between DDR4 2400MHz and 3000MHz still won’t be huge for a lot of gamers/other users but will be a fair bit more noticeable than 2666MHz.

Providing the RAM you’re eying has good latency (and size) you can expect 3000MHz to be the better choice if the price is only 0-10% extra.

3200MHz RAM is a popular speed for many gaming RAM manufacturers. Combined with a good latency, this will often be a happy medium to ensure you don’t bottleneck a mid-range CPU motherboard combo.

2400MHz would be fine for cheaper builds but we’d recommend 3200MHz if your budget can accommodate it.

If you are getting a high-end CPU, we’d recommend going with at least 3600MHz to ensure the RAM isn’t indirectly bottlenecking the performance during any processes.

If your budget is tight, you’ll be better off with 2400MHz and spending your money on at least 16GB of RAM size.

The difference between DDR4 2666MHz and DDR4 2667MHz is non-existent. This is simply a marketing term used by companies who round up/down differently.

Buy whichever one is cheaper (assuming size/latency are the same).

You may achieve an extra couple of FPS in games that are heavy on CPU requirements, but for the most part, there won’t be much difference between 2666MHz and 2933MHz.

2933 MHz also isn’t as popular for RAM manufacturers so we’d expect 2666 MHz to be more cost-effective (or if you do want higher, look at 3000MHz).

Similarly to 2666MHz vs 2993MHz, the difference in speeds isn’t wide enough to be that noticeable so only pick up 3000MHz if it’s very close in price or you are keen to min-max gaming FPSs (if that’s the case, you may be better with the higher speeds further below).

RAM speed increase of 3200MHz over 2666MHz will be a little noticeable/may achieve a few extra FPS on CPU-heavy games (or improve runtimes during certain processes, particularly for high-end processors and especially AMD Ryzen CPUs).

While the difference between 2933MHz and 3000MHz isn’t non-existent, it’s pretty close to being completely meaningless for most builders (almost certainly