GPU memory voltage (MVDDC) is listed as 1.250 V.
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The RX Vega 64 Owners Thread
- Thread starter Kaapstad
- Start date
GPU memory voltage (MVDDC) is listed as 1.250 V.
Soldato
Thats why. Keep it to 1050 if you can or 1000 worst case.
I have no idea if you can flash this specific card it with Vega 64 bios.
If so, you would be able to overclock better.
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Wattman has it listed as 950 though. Is that better? The voltages on HWInfo don't seem to change whether the card is working or not.
I don't think I'll risk a different card's BIOS just yet, as this card only arrived yesterday. I don't want to brick it.
I haven't overclocked anything yet! I just added five percent to the clock speed and it's now solidly boosting to just over 1600 mhz !
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The Voltage for HBM in Wattman is nothing to do with actual HBM voltage. It acts like a floor or minimum core voltage for that particular power state.
Should have dual BIOS with a switch on the card. Only one should be flashable (position closest to DP/HDMI connectors) so bricking the card is incredibly hard.
This shows you could probably set P7 higher. For best gaming performance I disable all Power States below P7 core and P3 HBM so there's no stutter when switching power state in game. One thing to try is unlock the Power (using a PP table registry mod) and then control the performance via the voltage. Usually this means setting HBM to a known good frequency (takes some testing to find), the P7 state to 1750MHz and Power to 200% using the PP Table mod, then incrementally increasing the P7 voltage until you find the max capability of the cooler or crashes when stress testing.
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Soldato
The floor voltage (the power setting under the HBM) should be set to 1000 before you try OC the HBM.
All AMD cards have dual BIOS. You save first the bios you want to update and then you patch it.
When patch completed. Turn off the PC, switch to the patched BIOS and boot. If not working, turn off the PC, turn the switch again, boot and patch the initial bios.
Soldato
Got the cooler ordered should be with me in time for Saturday. Will flash the LC bios on and see what how it goes.
Nice, you'll have fun with that. You'll see a good 5-8fps maximum improvement, but your hbm should be able to clock a little further, due to the heat reduction. Also if it stays below 50c you won't get the 15-25mhz clock reduction. And you'll be so happy with the quietness coming from the previous peasant cooler.
Soldato
Do you use 18.10.2 drivers? Can you show us your settings?
Soldato
mine is listed at 1.350 with a Vega 56 flashed to Vega 64 bios. I wasnt aware there was a way to lower this voltage by software?
Permabanned
I did 7 or 8 runs of Firestrike Extreme today pushing my clocks and I managed to increase my personal best 4 times, I found that although it was stable with no artifacts when I put the core above 1692 the scores dropped so I settled for 1692 @ 1120 mv which is 80 mv under stock on the core and with my HBM voltage at 1050 which is 50mv below stock I started pushing my HBM speed up, I got up to 1130 with no problems giving me a personal best of 11268.
https://www.3dmark.com/fs/16907464
This puts me at fourth place among the Vega's with only Vega AIO's above. Makes a nice change.
As you can see here the score started to drop when I went over 1130 on the HBM like it had on the core earlier so I think this score is as good as I can get.
https://www.3dmark.com/compare/fs/1.../16907413/fs/16907310/fs/16907252/fs/16906993
https://www.3dmark.com/fs/16907464
This puts me at fourth place among the Vega's with only Vega AIO's above. Makes a nice change.
As you can see here the score started to drop when I went over 1130 on the HBM like it had on the core earlier so I think this score is as good as I can get.
https://www.3dmark.com/compare/fs/1.../16907413/fs/16907310/fs/16907252/fs/16906993
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Vega 64 seems so much fun to tweak about with. I'm so tempted to ditch the nVidia ecosystem (gsync + GPU) and head over to AMD. Vega 64 seems able to run everything well until 7nm/Navi hits us.
nVidia prices area a very bitter pill to swallow at the moment, but I get the feeling these kind of prices are here to stay and 7nm won't change a thing.
nVidia prices area a very bitter pill to swallow at the moment, but I get the feeling these kind of prices are here to stay and 7nm won't change a thing.
Permabanned
I don't think Navi's going to have a ray-tracing solution like Nvidia's 2000 series has so it should mean the cards are a lot cheaper to develop & make, That should mean cheaper cards from AMD, If they try to do the same thing with prices I'll stick with my Vega card for as long as possible. I'm currently testing the water with a PS4 and the Xim mouse and keyboard adapter so if I can get on with that I might grab a PS5 instead of focusing on PC gaming.
One big hurdle with that is whether I can run my PS4 games on the PS5. Now the consoles are based on a PC style design there shouldn't be an issue with running the games unless Sony & Microsoft decide to block it.
Soldato
You will find around July made similar posts. Going from GTX1080Ti to Vega 64 was the best change did, because I love the tweaking and still ongoing
Is a card that as an enthusiast overclocker have found the best to experiment with.
Soldato
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@Gibbo just took a pic of the Warranty sticker on the back - Not sure if card has been opened or if this is the original Warranty sticker from Asus? just looks bland/flimsy compared to my EVGA ones - and don't want to have issues down the line
- I won't be moving the card etc - but relying on the warranty Thanks. Happy with the card though looks amazing 
Soldato
cheers fella. stuck on phone at the mo so a tad difficult to see but it looks to be about just shy of 30cm?
After seeing the disaster the 20 series has been so far, AMD would be wise to hold off trying to do ray-tracing for a generation or two. Let Nvidia make all the mistakes.
There won't be many games using it anyway, only a few AAA games (with probably only small number of those games actually being any good). Most gamers don't care about RT. They just want a GPU that can do 4k and high-res VR for sensible money.
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Soldato
I think I will be happy with results. 1550mhz is about the maximum my card can hold right now and often at higher resolution it's lower for some reason. I am confident getting the LC bios should fix that. Plus it should be quieter
Used various drivers, back as far as 18.5, 18.9.3 and the latest. Will post later when I can
Soldato
You need latest for this game.