AMD Memory Tweak - Read/Modify Timings on the fly!

I see +500 pts. to score -> Not Bad
On V64 is about 700 up to 1000pts uplift.
IMhO Vega 2 have all the bandwidth it needs..... 1TB/s lol

Note:
You still need this Mod, for Latency... the difference is there for sure.

 

Can someone with a Vega56 upload the default HBM timings?
I saw the post with the RedDragon, and I want to see if they are always the same, and compare them with my flashed to 64 timings.

TY!

 

Not at home so can't make screenshot but these are the stock values from a Sapphire Pulse Vega 56. You can copy the code and replace the first line in an existing XML to see it better.

Code:

<values cl="18" ras="24" rcdrd="23" rcdwr="12" rcab="37" rcpb="37" rpab="13" rppb="13" rrds="3" rrdl="3" rtp="6" faw="13" cwl="7" wtrs="5" wtrl="5" wr="14" rrefd="7" rdrddd="3" rdrdsd="2" rdrdsc="1" rdrdscl="3" wrwrdd="3" wrwrsd="2" wrwrsc="1" wrwrscl="3" wrrd="1" rdwr="17" ref="3200" mrd="4" mod="12" xs="216" xsmrs="216" pd="7" cksre="8" cksrx="8" rfcpb="96" stag="7" xp="7" cpded="2" cke="7" rddata="17" wrlat="5" rdlat="14" wrdata="1" ckestag="2" rfc="208" timing="0" zerorpm="True" tdplimit="50" maxtemp="85">

 

Thanks, I really appreciate it!

What mem type (Samsung, Hynix) is it?

 

Hynix

 

I second this. Adjusting timings I actually really don't see my overall bandwidth increase using OCLMemBench on my RadeonVII. As I tightened timings, I actually lost performance. I gain more performance by simply raising HBM Clocks.

Out of curiosity, what timings did you use to stabilize 1275? I can only run around 1165 with no artifacting, would love to stabilize 1200+.

 

Ah, ok...thank you, again.

I really need to flip the switch back to the 56 BIOS position and take a look at my Samsung's timings.

 

Some benchmark results. Strange Brigade and Division 2 benchmark results at same settings are very consistent making them really good tests for RAM tweaking.

Spoiler: Default Timings

Spoiler: Tweaked Timings

 

Yup, the Gain is there for sure.

 

I can't change any timmings on my RX 480 nitro+ 8gb

No matter what numbers i set, when i apply the changes it goes back to default.

Also my "default" timmings are weird, tCL is 9 but if i apply any changes it goes to 24 and sometimes back to 9.. it's supper buggy

 

Oh no, how can I fix this?

 

@Hewhospeaksmuch

Start from scratch and make a new profile. I also had an error like this when Installing new driver and trying to use an old profile. I think older profiles can be incompatible with new drivers.

I like your username with 3 messages since 2017

 

If you guys have any problem with drivers not working patch with this. atikmdag-patcher its the only way I can run my Bios modded Rx480

 

This happened when opening the program for the first time, I have no profiles and only the installed driver.

Edit: I think my drivers are too old, I am using 18.7.1.

 

Sorry for the delayed response, I "replied" a few days ago but never posted it :facepalm:

I can run the HBM2 clocks at 1275MHz without any timing mod. Are you trying to increase the frequency while being undervolted? I was doing some benchmarks to post the results later but I gave up after Win 1903 latest update started giving me issues after installing any Radeon Software.

 

Holy crap, seems you have hit the HBM2 lottery haha. I can't even do 1200 stable and I am not undervolted, actually the opposite. I am sitting at 1.189v to stabilize 2120Mhz on the core.

 

UPD. Your RIG with trusty Vega 2nd Gen
Still Fury CF

 

New release guys. --> Here

Not much changes for Vega though..

 

Hi! Thanks a lot to author for new release! I have a laptop with Ryzen 5 2500U + Radeon 560X which is not identified but shows correct values at least for Core control and Memory control parts.
May I ask You guys for assistance where to start with a timings exposed?
p.s. Latest release identifies GPU memory type

 

What's your junction at that configuration?