Ryzen 1### Memory Scaling testing

[humbug]

I have an older graphics card (AMD R9 280X) and was curious what impact RAM speed would have.

My conclusions from basic Unigine Valley testing:

* In a GPU bottleneck Scenario (e.g. if GPU utilization is 99%) no noticeable FPS increase observed.
* RAM speed/timings help to address CPU bottleneck scenarios (similar to overclocking the CPU).
* About 8% FPS Avg performance increase going from bios default 2133 15-15-15-36 to 3200 14-14-14-34 in a CPU bottleneck scenario.

Quick observations (in a CPU bottleneck scenario):
* A 19% CPU overclock (3.2 to 3.8Ghz) --> 16% FPS Avg increase
* Ram overclocked to 3133 14-14-14-34 --> 7% FPS Avg increase
* CPU (3.8Ghz) + RAM (3133 14-14-14-34) --> 21% FPS Avg increase

Graphs:
https://imgur.com/a/WczXZ

Test Scenario:
Unigine Valley 1.0
GPU Bottleneck Scenario = Extreme HD (1080p)
CPU Bottleneck Scenario = Basic + DirectX11 (720p)

PC Specs:
CPU: Ryzen 7 1700 (default 3.2Ghz)
Motherboard: Asus Prime X370-Pro
RAM: Corsair CMK16GX4M2B3600C18 Vengeance LPX 16GB (2x8GB) (bios default RAM settings: 2133 15-15-15-36)
GPU: AMD R9 280X (1000Mhz core / 1500Mhz mem)

That's really good work, i have added the quote to the original post.

 

[pete910]

So @humbug, You going to do a similar thing with/for Ryzen+/Refresh?

 

[humbug]

So @humbug, You going to do a similar thing with/for Ryzen+/Refresh?

Probably

 

[Atari]

I'll try and add some results, I've got a 1600 @ 3.9GHz, and Trident Z b-die that's currently running at 3333MHz with a 980Ti

 

[humbug]

:Thumbsup:

 

[Scougar]

Thanks for taking the time and sharing this