AnsweredAssumed Answered

Best 1800x RAM Speeds?

Question asked by chainik37 on Oct 19, 2019
Latest reply on Oct 23, 2019 by hardcoregames™

Have AMD got the BIOS optimized to handle higher RAM clock speeds for R7 CPUs or is the 2017-18 recommendation still true?

I've heard that Ryzen 7 don't really like RAM speeds above 3000mhz & running above this speed long-term can affect system stability because of the way the memory controllers work.  


I have 3200mhz RAM & it passed MemTestx86 & the stressapptest with no errors using it's XMP timings. 

So I'm wondering whether recommendations to stay to < 2933mhz is still best or whether the latest BIOS updates for AMD ComboPI have any impact on R7 RAM handling.

Its a question stability & performance between 
•XMP Profile #1: DDR4-3200 CL16-18-18 @1.35V
•XMP Profile #2: DDR4-3000 CL15-17-17 @1.35V


My rig is :-

  • Ryzen 7 1800x @ Stock clocks
  • MSI B450 Tomahawk // BIOS - 7C02v1C
  • HyperX Predator DDR4 16GB (2x8GB) 3200 MHz CL16 // HX432C16PB3K2/16
  • RX 580

850w PSU & Watercooling.