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The RX Vega 56 Owners Thread

@Overclocker321 I had the same coloured noise after typing text into the google search bar from the desktop, a previous driver (not able to run games on vega) did not exhibit this behavior. Therefore its a driver bug and I've reported it. Also on windows 7.
 
I have found a sweet spot with under volting the GPU core at around 1020mV with the V56 BIOS / Wattman 17.8.2.

The following are Fire Strike Extreme graphics results for the stress test, fps in the two graphics tests and graphics scores:

GPU V : Stress : FPS1 : FPS2 : Score :
------- -------- ------ ------ -------
1200 : 99.0 : 49.0 : 35.7 : 9502 :
1100 : 98.6 : 47.3 : 36.4 : 9463 :
1080 : 98.6 : 48.1 : 36.3 : 9517 :
1060 : 97.1 : 49.8 : 36.4 : 9677 :
1040 : 96.6 : 50.1 : 36.3 : 9676 :
1020 : 99.1 : 49.8 : 36.2 : 9640 :
1000 : 99.4 : 49.4 : 35.9 : 9562 :
980 : 98.3 : 49.2 : 35.6 : 9504 :
960 : 99.3 : 48.8 : 35.4 : 9437 :

All these figures are at standard clocks and power +45%. Increasing the power to 50% adds next to nothing.

Using 1020mV, I have a stable 1540MHz overclock (+3%) and HBM at 960MHz. I am using this all the time now and it is causing no problems.

I am testing Vega 56 under Windows 10 on a PCI 2.0e AMD system at the moment (A85X - Trinity APU). Everything seems to work, though the ROTTR benchmarks take a LONG time to load in DX12 (anyone else seen this?).

Anyhow, I can not do low-level graphics benchmarks on this system without hitting CPU bounds, but here are some more exacting tests:

Fire Strike Extreme: FPS1 = 53.70, FPS2 = 39.28, Score = 10435
Fire Strike Ultra: FPS1=27.55, FPS2 = 19.85, Score = 5307
Superposition 1080p Extreme: FPSMin=23.01, FPSavg=28.20, Score = 3770
Superposition 8k: FPSMin=15.89, FPSavg = 18.17, Score = 2429
Superposition 4k: FPSMin=35.74, FPSavg = 42.78, Score = 5719

The power on these tests peaks briefly at 140W with a 3000RPM fan (stock cooling).
 
FelixB said:
I have found a sweet spot with under volting the GPU core at around 1020mV with the V56 BIOS / Wattman 17.8.2.

The following are Fire Strike Extreme graphics results for the stress test, fps in the two graphics tests and graphics scores:

GPU V : Stress : FPS1 : FPS2 : Score :
------- -------- ------ ------ -------
1200 : 99.0 : 49.0 : 35.7 : 9502 :
1100 : 98.6 : 47.3 : 36.4 : 9463 :
1080 : 98.6 : 48.1 : 36.3 : 9517 :
1060 : 97.1 : 49.8 : 36.4 : 9677 :
1040 : 96.6 : 50.1 : 36.3 : 9676 :
1020 : 99.1 : 49.8 : 36.2 : 9640 :
1000 : 99.4 : 49.4 : 35.9 : 9562 :
980 : 98.3 : 49.2 : 35.6 : 9504 :
960 : 99.3 : 48.8 : 35.4 : 9437 :

All these figures are at standard clocks and power +45%. Increasing the power to 50% adds next to nothing.

Using 1020mV, I have a stable 1540MHz overclock (+3%) and HBM at 960MHz. I am using this all the time now and it is causing no problems.

I am testing Vega 56 under Windows 10 on a PCI 2.0e AMD system at the moment (A85X - Trinity APU). Everything seems to work, though the ROTTR benchmarks take a LONG time to load in DX12 (anyone else seen this?).

Anyhow, I can not do low-level graphics benchmarks on this system without hitting CPU bounds, but here are some more exacting tests:

Fire Strike Extreme: FPS1 = 53.70, FPS2 = 39.28, Score = 10435
Fire Strike Ultra: FPS1=27.55, FPS2 = 19.85, Score = 5307
Superposition 1080p Extreme: FPSMin=23.01, FPSavg=28.20, Score = 3770
Superposition 8k: FPSMin=15.89, FPSavg = 18.17, Score = 2429
Superposition 4k: FPSMin=35.74, FPSavg = 42.78, Score = 5719

The power on these tests peaks briefly at 140W with a 3000RPM fan (stock cooling).
Click to expand...

Matches up with what I've found. Can't get my HBM to 960 MHz though (saw a artifacting for a fraction of a second in Timespy) so I've left it at 945 MHz and im happy.
I find it amazing how much AMD overvolted these things to begin with, It shouldn't be possible to remove 180mV and then stick power up by 50% and somehow get significantly better performance for around the same (maybe even less) power draw than stock!.
 
Last edited:
sideways14a said:
HBM should be able to go over 1000mhz with the 64 bios.
Click to expand...

Flashing the BIOS changes all kinds of things, including an increase to the HBM voltage from 1250mV to 1356mV that may help to overclock it.

However, all of the fine tuning done on a Vega56 BIOS would need to be altered after switching to a Vega64 BIOS or you will end up with poorer performance.

My initial exploration into under volting and over clocking the Vega64 BIOS found it to be less stable, slower and hotter. I have no doubt that this could be improved with tweaking, but there is no guarantee that the end result would beat the Vega56 BIOS.
 
Anyone tried using Radeon Chill? its amazing!

I tested playing CS:GO with the following:

Screen refresh rate on 144Hz
Min: 110fps
Max: 144fps
Freesync on

It runs so smoothly, thought limiting fps might cause problems but its smooth as butter. Also i can't even hear the GPU fan spin, its practically silent :D
 
Astennu said:
I had to make a new account my old one was gone.
I have bin following the overclockers forums for quite some time but im not a active poster more a reader :)

Im doing a lot of Vega testing because its fun and i want to learn more about the cards. I just made a online sheet where i post my data.
Maybe there are people over here that also want to add their data.

The tests are done with Unigine SuperPosition 1080p Extreme and 1440p for now.
I use data from wattman and GPU-Z to get some extra info on actual clockspeeds, voltages and power draw.

I only added a few results so far the rest is still on my pc. I hope to add them this weekend.
I'm currently testing 3 Vega 56 cards and 2 64's. And have tested 2x64 before that.

I hope some of you want to share your results so get a better picture how Vega performs with different voltages.

Here is the link to the google sheet: RX Vega UV/OC Results - Unigine SuperPosition
Click to expand...

I want to kick the following message. Thanks for the people who added results. I hope some more want to share their results.
 
Sweeet, ordered Sapphire Vega56 showing on pre-order last night. Got email not long ago stating its shipping out via DHL... I guess they have new stock they haven't updated their website.

Will hopefully get some gaming in on Wednesday night as busy tmrw evening.

Nice replacement for my IGPU on my 4790k.
 
Jazz2k said:
Sweeet, ordered Sapphire Vega56 showing on pre-order last night. Got email not long ago stating its shipping out via DHL... I guess they have new stock they haven't updated their website.

Will hopefully get some gaming in on Wednesday night as busy tmrw evening.

Nice replacement for my IGPU on my 4790k.
Click to expand...
This the standalone version? I have had mine on preorder for a while now and mine hasn't shipped!
 
megatron said:
@Overclocker321 I had the same coloured noise after typing text into the google search bar from the desktop, a previous driver (not able to run games on vega) did not exhibit this behavior. Therefore its a driver bug and I've reported it. Also on windows 7.
Click to expand...

It's not doing it anymore. LOL, the only thing I did was switching the GPU Tach button from blue to red on the backplate. But surely this is a coincidence. As you said, must be just a temporary driver bug. Will switch to Win 10 and report back if still appears.
 
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