- May 6, 2020
Yep. You need to be CPU limited to see the difference in faster memory. Tight timings matter as much or more than speed. If you don't tune the memory and you aren't CPU bound it doesn't matter much. If it were me I'd tune the existing 2666 memory. I bet it will at least do 3200 on its xmp timings.Sorry, but that doesn't add up.
We take a close look at memory scaling on AMD's new Zen 2 Ryzen 3900X, testing both application and gaming performance at seven different memory speed and timing combinations ranging from 2400 MHz all the way up to 4000 MHz.www.techpowerup.com
Would suggest its ~5% difference.
Meanwhile, going from a 1600 (6c @ 3.6 GHz) to a 3600 (6c @4.2 GHz) will net you at least a 30% improvement with all other things being equal.
Yes, you are leaving performance on the table - but the incremental improvement doesn't justify the expense.
Especially when the bigger question hasn't been answered yet - what GPU is in the system?
When we reviewed Ryzen's latest iteration we briefly checked out different DDR4 memory speeds but now that things have settled we were put on a mission to benchmark memory performance on 3rd-gen Ryzen to see if spending more makes sense or not.