Ryzen 1### Memory Scaling testing

[humbug]

There isn't much information around about how much extra performance you can get with faster Ram on Ryzen 1, so to satisfy my own curiosity i spent half an hour testing, the results were surprising.

Just one game, i may or may not add more later.

Grid 2: Maximum 1080P MSAA 0, GTX 1070.

Corsair Vengeance® LPX 16GB (2x8GB) DDR4 DRAM 3000MHz
CMK16GX4M2B3000C15

Ryzen 1600 @ 3.9Ghz

Other relevant settings:

DRam Volts 1.41v
SoC 1.11v
PROC OPT 48 Ohms

Results: Chart made by Armageus, thank you

Spoiler

2400 16-17-17

Min: 111
Avr: 142
Max: 202
--------------------

2666 16-17-17 (+11%)

Min: 117 (+6%)
Avr: 151 (+6%)
Max: 210 (+4%)
--------------------

2933 16-17-17 (+9%) Total (+23%)

Min: 122 (+4%) Total (+10%)
Avr: 159 (+5%) Total (+12%)
Max: 229 (+9%) Total (+13%)
--------------------

3066 16-17-17 (+4%) Total (+27%)

Min: 129 (+6%) Total (+16%)
Avr: 164 (+3%) Total (+16%)
Max: 240 (+5%) Total (+19%)
--------------------


Timings scaling:

2400 16-17-17

Min: 111
Avr: 142
Max: 202
-------------------

2400 14-15-15

Min: 112 (+1%)
Avr: 146 (+3%)
Max: 202

It seems timings make some but little difference, outright speed has about 55% scaling.

Other results from the net.

There are a couple of good videos from the guy at MindBlank Tech showing how well it scales with speed and timings

https://www.youtube.com/watch?v=S6yp7Pi39Z8


https://www.youtube.com/watch?v=p--iuQhujqI

Pretty sure it works like this till 3200 then timings start being more important.

Shown pretty well here, gamers nexus: https://www.gamersnexus.net/hwrevie...m-overclock-windows-update-efi-updates/page-5

You got the ram to go higher? 3 weeks till I get to see where my b.die can go

This is an excellent example with clear graphs by os4321, thank you

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)

 

[humbug]

Unfortunately i can't get it any higher.

 

[humbug]

There are a couple of good videos from the guy at MindBlank Tech showing how well it scales with speed and timings

https://www.youtube.com/watch?v=S6yp7Pi39Z8


https://www.youtube.com/watch?v=p--iuQhujqI

Added to op, thank you.

Graphed it for you, as all that text was making my eyes hurt

Spoiler

That looks great, thank you

 

[humbug]

Cool, thanks for running this!

Defo worth investing in 3200MHz+ RAM for Ryzen 2xxx then? Potentially even better gains if the memory controller is more optimised.

Yes probably, and apparently Ryzen 2### series will run memory upto 4000Mhz.

 

[humbug]

Yeah I don't think anything I do will require 32GB, so with the prices as they are now, guess it makes sense to get the fastest possible 16GB dual channel kit.

If it's CAS 14 @ 3200MHz, it basically has to be Sammy B-Die, right?

Right

 

[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.

 

[humbug]

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

Probably

 

[humbug]

:Thumbsup: