You Know it's funny, the day i posted the screenshot it happened twice, has not happened ever since, just as you mentioned. I do have to add that i have been playing with Radeon Chill as well, that maybe i did not at first but it seems to be pretty inconsistent. So far i am very happy with my Vega 64....no issues whatsoever and for $375 that i got it, really good bang for the buck.
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Vega 64 Overclocking & Undervolting information & guide
- Thread starter ICDP
- Start date
First thanks for this great write up. I have went the 1000mV way. I have to say I'm impressed. Card does easily 1700 Mhz, hotspot temperature doesn't exceed 58 Deg C on liquid cooling. 100% stable
Graphics Card AMD Radeon RX Vega 64
VendorAdvanced Micro Devices Inc.
# of cards1
SLI / CrossFire Off
Memory 8,192 MB
Core clock1,704 MHz
Memory bus clock 945 MHz
Driver version 26.20.13001.40003
Driver status Approved
Processor
Processor AMD Ryzen 7 1700
Reported stock core clock 3,800 MHz
Maximum turbo core clock 3,738 MHz
Physical / logical processors 1 / 16
# of cores 8
Package AM4
Manufacturing process 14 nm
TDP 65 W
Graphics Card AMD Radeon RX Vega 64
VendorAdvanced Micro Devices Inc.
# of cards1
SLI / CrossFire Off
Memory 8,192 MB
Core clock1,704 MHz
Memory bus clock 945 MHz
Driver version 26.20.13001.40003
Driver status Approved
Processor
Processor AMD Ryzen 7 1700
Reported stock core clock 3,800 MHz
Maximum turbo core clock 3,738 MHz
Physical / logical processors 1 / 16
# of cores 8
Package AM4
Manufacturing process 14 nm
TDP 65 W
Last edited:
Soldato
- Joined
- 6 Feb 2010
- Posts
- 14,582
Looks like the god of silicon lottery favour you...I need 1150mV minimum to keep 1704MHz on the core clock stable (though I have overclocked the memory 1050MHz, not sure if that would have anything to do with requiring higher voltage for stability or not).
Yes it seems to be, but also I know that the Vega likes it cool. This values have been possible after I have rectified and cleaned my custom cooling loop
Soldato
bit of a holy thread revival batman situation here, I have found after a couple of days of running a 64 bios on my powercolor 56 that memory is no stuck at 800mhz in the overlay no matter what settings I use.
On automatic or turbo the clocks are all correct including overclock settings up to 1100mhz
Little bit lost?
I used the 900mv / 50PL settings and that is what worked all fine but now it doesn't for some reason?
On automatic or turbo the clocks are all correct including overclock settings up to 1100mhz
Little bit lost?
I used the 900mv / 50PL settings and that is what worked all fine but now it doesn't for some reason?
Soldato
i had similar issues with my Sapphire card reference card (EKWB cooled), im sure these 2020 drivers are messing with things, i had to flash it back to a 56 bios to stop random crashes and memory speed bugs. 2019 drivers were fine with it. Might go back to the last 2019 driver and try the 64 bios again.
Soldato
Cheers, I may go back again to 2019 drivers and see what happens then too
Managed to get some settings that are working again with 950mv across the board and then p7 set to the p6 speed (1537mhz from memory) +50PL and then HBM up to 1000mhz and even 1100mhz worked fine again. Seemed to be 800mhz for a second or so then soon as card is loaded, boom she's away. Stays nice and cool and giving me 19400 odd firestrike results
Managed to get some settings that are working again with 950mv across the board and then p7 set to the p6 speed (1537mhz from memory) +50PL and then HBM up to 1000mhz and even 1100mhz worked fine again. Seemed to be 800mhz for a second or so then soon as card is loaded, boom she's away. Stays nice and cool and giving me 19400 odd firestrike results
Dialled in some good undervolt/HBM Overclock settings on my Vega 64 LC.
Ive dropped stock clocks from P7 1750mhz @1.245v Fan @2300rpm Load temp 61c.
(945 HBM)
Now have her at P6 1660mhz @1.081v /P7 1670mhz @ 1.093v.
Increased HBM clock to 1120mhz @0.918mv. Fan at 2100rpm. (50% Power Limit)
What a difference in Load temps. Gone down from 61c to 51c (10c drop)
GPU power Draw dropped 100w or so from mid 300’s to 240w..
Little to no drop drop in FPS either.
Ive dropped stock clocks from P7 1750mhz @1.245v Fan @2300rpm Load temp 61c.
(945 HBM)
Now have her at P6 1660mhz @1.081v /P7 1670mhz @ 1.093v.
Increased HBM clock to 1120mhz @0.918mv. Fan at 2100rpm. (50% Power Limit)
What a difference in Load temps. Gone down from 61c to 51c (10c drop)
GPU power Draw dropped 100w or so from mid 300’s to 240w..
Little to no drop drop in FPS either.
Soldato
Nice, that's quite an improvement 
I would love to stumble across an LC cooler I could add to mine but I guess they would be few and far between unless someone went to a full waterblock
I have a brand new boxed EK RGB block in my drawer but I just havent the guts to go full WC yet
I would love to stumble across an LC cooler I could add to mine but I guess they would be few and far between unless someone went to a full waterblock
I have a brand new boxed EK RGB block in my drawer but I just havent the guts to go full WC yet
Soldato
I don't think the drivers are the issue, I running 2020 drivers on Sapphire V56 but with Sapphire V64 bios. My card is at 1630/1100 without any issues
Soldato
I have to admit after fresh driver installation the card is now running correctly again. I am on the latest 2020 drivers without issue now too
My Vega 64 (ASUS strix version) is sitting at 1630/1000. I have undervolted it a bit and it seems to run ok with the gpu sitting at around 72degrees when working flat out.
Clocks and undervolting is sitting at:
State4 State5 State6 State7
1200 1400 1536 1630
1025 1025 1030 1045
Ram is 1000mhz with 1025mv
Power Limit is set at +50%
This seems stable with all games and 3D Mark stress tests. If i go any lower with the State7 voltage i start to get 3D Mark lockups.
The GPU hotspot still gets up to between 90-94degrees but I think the strix is notoious for having bad cooling for the VRMs, or something like that.
The card fans never go about 49% which is 2500rpm or thereabouts, which isnt too loud.
Clocks and undervolting is sitting at:
State4 State5 State6 State7
1200 1400 1536 1630
1025 1025 1030 1045
Ram is 1000mhz with 1025mv
Power Limit is set at +50%
This seems stable with all games and 3D Mark stress tests. If i go any lower with the State7 voltage i start to get 3D Mark lockups.
The GPU hotspot still gets up to between 90-94degrees but I think the strix is notoious for having bad cooling for the VRMs, or something like that.
The card fans never go about 49% which is 2500rpm or thereabouts, which isnt too loud.