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The RX Vega 64 Owners Thread

Marine-RX179 said:
Sorry if it's been asked numerous time already, but is there a step-by-step post/guide which shows me how to overclock the Vega64 using AMD's own Wattman?

I have always use MSI Afterburner in the pass, but recently it has been a pain and keep having compatibility issue with some games. Also what would be good clock and memory speed to aim for? I'm using a Sapphire Nitro+ (not limited edition) that has 2 PCI-E 8 pin plugs not 3 like the limited edition does.

Also I recalled reading someone mentioning that the Vega64 can be clocked higher on under-volting instead of increasing the voltage?
Click to expand...

Try this post from Panos: https://forums.overclockers.co.uk/posts/32057078/

I've no longer got a reference Powercolor, but the Red Devil ... and it's under water since last night. With just the settings from that first screenshot (bumping the memory clock, bumping the GPU clock a little bit and some undervolting) I almost managed to achieve my best Heaven 4.0 score (which is the highest of the Vega 64 scores posted, though there aren't all that many), and that score took me way more time to get to. Thermally I'm nowhere near the limits, so can probably do better but haven't had the time.
 
Marine-RX179 said:
Sorry if it's been asked numerous time already, but is there a step-by-step post/guide which shows me how to overclock the Vega64 using AMD's own Wattman?

I have always use MSI Afterburner in the pass, but recently it has been a pain and keep having compatibility issue with some games. Also what would be good clock and memory speed to aim for? I'm using a Sapphire Nitro+ (not limited edition) that has 2 PCI-E 8 pin plugs not 3 like the limited edition does.

Also I recalled reading someone mentioning that the Vega64 can be clocked higher on under-volting instead of increasing the voltage?
Click to expand...

Hey as @Shiari said, use the settings on the page 284. They do not push the card to the limits but they do keep low power and thermal, while provide performance similar to a GTX1080 @2164-2190 overclock. If you see any issues which aren't resolved by raising the power limit by 5%-10% let us know to assist you :D

I have the same card as you so the settings will work straight away as they have done for few others around my post there. :)
 
Panos said:
Hey as @Shiari said, use the settings on the page 284. They do not push the card to the limits but they do keep low power and thermal, while provide performance similar to a GTX1080 @2164-2190 overclock. If you see any issues which aren't resolved by raising the power limit by 5%-10% let us know to assist you :D

I have the same card as you so the settings will work straight away as they have done for few others around my post there. :)
Click to expand...
which thread pal? this one is at 203...
 
pooley said:
Panos said:
Hey as @Shiari said, use the settings on the page 284. They do not push the card to the limits but they do keep low power and thermal, while provide performance similar to a GTX1080 @2164-2190 overclock. If you see any issues which aren't resolved by raising the power limit by 5%-10% let us know to assist you :D

I have the same card as you so the settings will work straight away as they have done for few others around my post there. :)
Click to expand...

which thread pal? this one is at 203...
Click to expand...

Think it is this page, guessing you have your set for like 30 posts per page or such.
https://forums.overclockers.co.uk/threads/the-rx-vega-64-owners-thread.18789713/page-284
 
pooley said:
^ that's worked thank you
i have the red devil, which bios switch you peeps recommend for best fps..
Click to expand...

From what I gather from the marketing material on the website the switch is mostly about the fan profile, though they'll no doubt limit what the card will do (out of the box at least) based on those settings. I think however it's also irrelevant once you use the Custom settings in Wattman, since you can override the defaults there.
 
montymint said:
not going to lie, apart from the first few days where I was obsessed with benchmarking. I spend most time on power saving mode and it drives my 3440 x 1440p monitor just nice :)
Click to expand...

Yeah, in practical terms the overclocking is mostly not worth it ... if on air though undervolting it a bit is certainly worth it for the silence.
 
EL_JOCK said:
Hi cannot really offer any help, but the program is recording you can see its writing to the hard drive in that picture at 3mb, would turn it off completely, see if it stops, also do you have HBCC on?

Nice one
Click to expand...

Yeah turning off the instant replay feature stops it, but ideally I would like it =/

I take it the encoding part is okay below (72% usage?)

a2RDMyt.jpg
Click to expand...
 
That 72% usage is just on the video encoding engine, and yeah that part of the GPU is going to be busy when instant replay is on. Of course you can easily toggle it off and on with Alt-Z (even in Windows). No idea why the memory usage is so high for you though, I've not really used the feature but running it for a little bit it used about 86MB. Might be worthwhile filing a bug report?
 
montymint said:
not going to lie, apart from the first few days where I was obsessed with benchmarking. I spend most time on power saving mode and it drives my 3440 x 1440p monitor just nice :)
Click to expand...

Yeah whole summer spent it on Power Saving mode with 140fps cap on Freesync, while play Elite, WOT, EUIV & CK2.
Only when connecting the PC on the 4K TV I use the overclocking settings, and these the mild ones from page 284.
 
Panos said:
Yeah whole summer spent it on Power Saving mode with 140fps cap on Freesync, while play Elite, WOT, EUIV & CK2.
Only when connecting the PC on the 4K TV I use the overclocking settings, and these the mild ones from page 284.
Click to expand...

yeah with a refresh rate of 75 on my ultrawide, I've found power saving + not playing on ultra keeps me either at 60 fps (PUBG) or at the 70fps lock I have set , it's nice having to lock fps for once lol.
 
montymint said:
yeah with a refresh rate of 75 on my ultrawide, I've found power saving + not playing on ultra keeps me either at 60 fps (PUBG) or at the 70fps lock I have set , it's nice having to lock fps for once lol.
Click to expand...

Yeah. I have games like Eu4 and CK2 where the cap fps is godsent as these are the only games vsync doesn't work and need it because more than 60fps is useless.

Something had issues with the gtx1080ti which was trying to generate 770+ fps burning a lot of power.
 
Been trying to beat my Heaven score of 2483, and I ultimately did ... managed 2484. Took quite a bit of effort, and power usage jumped with about 50W (moving from 250W to 300W power consumption reported). In contrast, the settings from Panos in the first screenshot at https://forums.overclockers.co.uk/posts/32057078/ gave me a still quite respectable Heaven score of 2426 (at stock it would be 2269 or so).

Guess we already knew this, but trying to really push Vega by brute forcing just isn't worth it except for trying to eek out those very last points (would love to break the 2500 "barrier") ... but that comes at a high cost in power consumption (and heat, ultimately). Undervolting it a bit and pushing the memory rather than GPU clocks achieves 99% of the same results at little actual effort and less power usage.
 
Yeah I was having a play Shiari and here's my settings for the Heaven bench I uploaded today. I noticed locking off the lower power states prevented some dips and hitches in the run as it didn't switch to lower power states in scene transitions. However this is incredibly power hungry and I was seeing 360W with Afterburner W rating in testing (AB off for the actual run). Obviously mines waterblocked so Fan states are off and the Liquid BIOS temp restrictions in place.

CurrentHeavenBench.PNG
 
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