Best stress tool for Ryzen?

[RafflesTheThief]

Hi all

 

Going to go about OCing my 1800X this weekend on a Gigabye X370 Gaming 5, cooled with an NH-U12S (dual fan). 

 

Just have some questions, if that's all good? 

 

1) What are people using to stress Ryzen? I liked using X264 over on /r/overclocking, but was wondering if there was something better to use with Ryzen? Have heard people say Realbench/P95 is good. Which version, 26.6 without AVX or beyond with? 

 

2) Was wondering what CPU VDD18 and CPU VDDP were in the BIOS? AM happy with the rest, but am not familiar with them. The Gigabyte published AM4 overclocking quick guide isn't too specific on this either. 

 

Thanks all! 

[it_dont_work]

Prime95 always prime95, except for that version that killed things don;t use that one...I can't remember which version that was...this is probably not a helpful comment

[porina]

I found Asus Realbench to be good t provoking instability and that would be my choice to verify an OC for longer term use.

 

Prime95 29.1 test version has been updated to detect Ryzen and use AVX2, so that would be my 2nd choice for long term testing, but it is faster for a quick look than Realbench. Anything older than that wont use AVX on Ryzen. Note that AVX2 performance on Ryzen is about half IPC of Intel so it is a lot less stressful than on Intel. http://www.mersenneforum.org/showthread.php?t=22141

 

[DrMikeNZ]

For testing my R7 1700 (on X370 Gaming 5) at each overclock, I ran 3 cycles of cinebench multi threaded, 1 cycle single threaded. 30 min x265 handbrake encode with denoise filter (my intended workload) followed by prime 95 banchmark (29.1). Once that was all complete and overclock set, I just queued up a few months worth of x265 encodes and walked away.

 

I recommend recording performance in your intended workload and power draw at each overclock iteration to ensure that you are actually benefiting from higher clock speeds. Above 3.6GHz I saw no real improvement for my specific workload (x265 encoding) only increased power draw and Cinebench epeen.

 

Due to the FMA3 bug in early BIOS versions, I also ran that test to ensure stability. (no issues on latest BIOS).

[jjohnthedon1]

R15 5 times if it passes it's stable for me

not had any blue screens yet touch wood