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RX Vega Owners Thread, Tests, Mods, BIOS & Tweaks !

Discussion in 'Videocards - AMD Radeon' started by OnnA, Aug 15, 2017.

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  1. Titan29

    Titan29 Master Guru

    Messages:
    295
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    GPU:
    Ref Vega 64/1060 6G
    I slapped on the Morpheus II today and temps dropped from 86 C to 52 C with out of box settings. I tried a few UV settings and settled on around 1000 for P6 and 1040 for P7 and 1100 MHz for HBM. This reduced the core temps to 47 C with HBM temps to 53 C and near silent fans (Noctua NF-A12x25). During Valley and Timespy, the boost clocks remained in around 1610-1618 range with GPU power consumption around 200W.

    I got Timespy graphics score of 7885. Very excited with these results so far!
     
    INSTG8R and OnnA like this.
  2. Dekaohtoura

    Dekaohtoura Master Guru

    Messages:
    277
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    28
    GPU:
    Sapphire V56 Pulse
    R1700 @3800MHz/1.25V
    16GB @3000MHz 16-17-17-18
    P6 @1622MHz/1070mV
    P7 @1652MHz/1090mV
    HBM @930MHz

    But why would it matter?

    All individual tests/scores are higher than yours, so the Combined score should be higher as well.
     
  3. OnnA

    OnnA Ancient Guru

    Messages:
    9,397
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    1,908
    GPU:
    Vega 64 XTX LiQuiD
  4. Exodite

    Exodite Ancient Guru

    Messages:
    1,906
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    GPU:
    Sapphire Vega 56
    I ended up biting the bullet on a Sapphire Vega 56 Pulse myself and I couldn't be happier!

    Made some interesting observations when I did temp/power comparisons with my old card that I'll try to sum up below.

    First, some numbers for comparison... my old card is also a Sapphire card, an RX 480 Nitro+ and power numbers are based on readings at the wall (+-0.2W according to my meter) and converted to actual power based on PSU efficiency.

    The RX 480 numbers are from using the 18.9.2 drivers, while the Vega numbers are with 18.11.2, as I couldn't be bothered to update the drivers just for power testing.
    --------------------------------------
    RX 480 Nitro+ (Stock, efficiency BIOS)

    Time Spy:

    1266 MHz solid for graphics tests.
    GT1: ~205 W
    GT2: 202 - 220 W

    Furmark:

    1056 - 1128 MHz
    240 - 244 W

    Furmark + Prime95

    1051 - 1138 MHz
    337 - 339 W
    -----------------------------------------
    RX 480 Nitro+ (1.080 mV, 2150 MHz memory, efficiency BIOS)

    Time Spy:

    1266 MHz solid for graphics tests.
    GT1: 199 - 207 W
    GT2: 200 - 210 W (one spike at ~216 W)

    Furmark:

    1030 - 1040 MHz
    ~241 W

    Furmark + Prime95

    1043 - 1061 MHz
    323 - 334 W
    -------------------------------------------------------
    Vega 56 (165 W BIOS, Balanced preset)

    Time Spy stress test:
    1410 - 1437 MHz
    279 - 296 W (one spike at 308 W)

    Furmark:
    1121 - 1127 MHz
    273 - 279 W

    Furmark + Prime95:
    1131 - 1137 MHz
    360 - 369 W
    ------------------------------------------------------
    Vega 56 (165 W BIOS, Power Save preset)

    Time Spy stress test:
    1350 - 1366 MHz
    262 - 273 W
    ---------------------------------------------------------
    Vega 56 (165 W BIOS, 900 MHZ HBM2, Custom preset)

    Time Spy stress test:
    @1100 mV; ~1270 MHz
    @1050 mV; ~1294 MHz
    @1020 mV; ~1308 MHz

    Wattage at every point consistent with the Balanced preset results.
    -----------------------------------------------------------

    At this point I packed it in on the manual tweaking/undervolting.

    Logging the core clock and voltage with GPU-Z, admittedly an imperfect measuring tool, during a Time Spy benchmark run on the Balanced preset w. 950 MHz HBM2 results in core voltages reading of 0.9125 to 1.0000 and core clocks of 1400 to 1425 MHz (median of 0.9875 V and 1417 MHz) in GT1.

    GT2 meanwhile saw larger swings with 1374 to 1458 MHz and voltages between 0.9125 V to 1.1062 V (median of 1.000 V and ~1430 MHz).

    So, what did I learn/observe?

    • This card, along with the 18.11.2 drivers, is doing a far better job at managing voltage and core clocks than I could hope to do by manually undervolting. The Balanced preset consistently outperformed even a 1020 mV manual setting within the exact same power budget/usage.
    • The additional power consumption of an 800 to 950 MHz HBM2 memory seems negligible. If it's accounted for in the cards power budget (the Balanced + 950 MHz HBM2 core clocks are slightly lower) it's still a net positive on performance. And if it's outside of the power limit setting it's not measurable in any meaningful way at the wall.
    • The card is really, really cool and quiet compared to my RX 480 - and that card is a very solid Polaris version. I'm seeing 55-62C under load and that's with the fan on stock settings.
    • Interestingly both the RX 480 and Vega 56 performed better, running at higher core clocks, in the Furmark + Prime95 testing than with just Furmark. I wonder if this is a scheduling issue with Windows thread-hopping when the CPU isn't loaded, my PSU finding a new gear or something else entirely? It's not a big difference but it was measurable and consistent.
    • As of now I'm using the Balanced preset as a base and simply bumping the memory up to 950 MHz and calling it a day. If I want better performance the only meaningful slider seems to be the power limit, which I'm currently leaving at 0.
    I hope some of this has been entertaining/interesting to read. :)
     
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  5. OnnA

    OnnA Ancient Guru

    Messages:
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    GPU:
    Vega 64 XTX LiQuiD
    ^^ OP Updated
    with Your observations ;) :D
    2nd Post.
     
  6. Öhr

    Öhr Master Guru

    Messages:
    273
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    8
    GPU:
    Vega56 + Morpheus 2
    There seem to be 3 different BIOS revisions of reference blower-style Vega64 floating out there:
    But what is the actual difference between these? Is one better than the other in some ways? And most importantly of all, which one is best suited to flash my Vega 56 with?
     
  7. apple020997

    apple020997 Active Member

    Messages:
    54
    Likes Received:
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    GPU:
    RX Vega 64+waterbl.
    I have a stock (now watercooled) 64 that came with the first BIOS. After a couple of quick tests (ROTTR benchmark, at that time I had only that test in my PC) I flashed my card to the 8737 BIOS and gained 1-2fps strangely. Small but consistent gain (1-2 fps more with an average of over 90 at 2.5k is nearly rounding error)... I don’t know why.
    Also, if you want to flash a 56 with a 64 BIOS check the HBM2 brand, AFAIK Vega 64s/FEs have Samsung HBM2 (best, OCable to 1100-1200MHz) and a good amount of 56s have Micron HBM2 (worse, lucky if you can OC it over 900-950MHz).
     
    OnnA likes this.
  8. JonasBeckman

    JonasBeckman Ancient Guru

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    GPU:
    Sapphire 5700XT P.
    Yeah Hynix with a slightly different profile for the memory, seems there's still Vega 56's with Samsung but a large amount of them use Hynix now so it's not the same as when the card launched and they both had Samsung which was all but guaranteed to reach 1 Ghz speeds or higher if flashed since this is increasing voltage slightly allowing for a bit more before it caps out.
    (Reference is already well engineered so buying that and using a custom cooler was also very popular.)

    SOC clock speed should be increased now too after a driver update so the memory can go above 1100 Mhz but that's not as certain and the performance gains starts dropping off above 1000 - 1050 Mhz but there's still some performance to be had from reaching higher clock speeds if the card is stable with it. :)

    And as for Hynix or what the current HBM supplier is besides Samsung yeah it's somewhere around 900 Mhz on average up to perhaps 950 Mhz before it either crashes or shows artifacts.
    Interesting with the different bios versions there, guessing it's not just different SKU's either such as the air cooled Vega 64 compared to the water cooled model.
     
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  9. OnnA

    OnnA Ancient Guru

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    9,397
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    GPU:
    Vega 64 XTX LiQuiD
  10. MaCk0y

    MaCk0y Master Guru

    Messages:
    517
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    153
    GPU:
    GB RX 5700 XT OC
    Is it worth buying a used Sapphire Nitro+ Vega 56 Limited Edition for 375 euro? Says light use, less than a year old and 1 year warranty remaining.
     

  11. Öhr

    Öhr Master Guru

    Messages:
    273
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    8
    GPU:
    Vega56 + Morpheus 2
    apple020997 likes this.
  12. OnnA

    OnnA Ancient Guru

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    GPU:
    Vega 64 XTX LiQuiD
  13. OnnA

    OnnA Ancient Guru

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    GPU:
    Vega 64 XTX LiQuiD
    If You wish, then Yes (When possible: UV + V64 BIOS for HBM2 1.356v and You're happy)
    or Wait for V64 Deal :D
     
  14. OnnA

    OnnA Ancient Guru

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    GPU:
    Vega 64 XTX LiQuiD
    Yes, but You can adjust the clocks in OverdriveN Tool + PP reg. (PP = Power Play Tables)
    All in all is designed for modding.
     
  15. apple020997

    apple020997 Active Member

    Messages:
    54
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    GPU:
    RX Vega 64+waterbl.
    That’s what happens when I flash my card to watercooler BIOS. It isn’t stable, it crashes after 10 seconds of Furmark or 10 min of gaming...

    EDIT: Strangely, my card is a great undervolter and great HBM2 overclocker, but an absolutely HORRIBLE GPU overclocker. Everything over 1600-1650MHz isn’t stable Even with stock BIOS (I don’t want to OV the card).
    Not that I need more GPU power... 1500MHz core/1100 HBM2 @185W max (GPU-Z) is a beast
     
    Last edited: Nov 26, 2018
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  16. Dekaohtoura

    Dekaohtoura Master Guru

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    277
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    GPU:
    Sapphire V56 Pulse
    Nah, won't work (it will, but it's not good enough) for me.
    Lost around 900points in Timespy compared to my everyday uv+oc

    Still, good observations.
     
  17. Öhr

    Öhr Master Guru

    Messages:
    273
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    GPU:
    Vega56 + Morpheus 2
    I figured out another difference between the liquid and blower BIOS, aside from the obvious clock/voltage differences: memory voltages P-states correspond to different GPU voltage P-states (linked). (at least according to OVerdriveNTool)

    For the recommended "liquid" BIOS (016.001.001.000.008774), its voltages are linked like this:
    Memory P0/P1 = GPU P0
    Memory P2 = GPU P1
    Memory P3 = GPU P2

    For the "blower" BIOS (016.001.001.000.008706, 016.001.001.000.008730 and 016.001.001.000.008737), its voltages are linked like this:
    Memory P0/P1 = GPU P0
    Memory P2 = GPU P2
    Memory P3 = GPU P4

    By the way, what happens if the voltage of a high GPU P state (e.g. P6/P7) is lower than that of a previous P-state? Does it assume the previous P-states voltage as a voltage floor? How does it and the PPT actually work/behave? I need to understand it first before trying to tweak it to something stable...

    EDIT:
    Researched it a bit further. The PPT is made of references to voltages and for some reason, liquid and blower BIOS use different references. You can see it more clearly here: https://i.imgur.com/P6Wld4a.jpg
     
    Last edited: Nov 27, 2018
  18. darce2

    darce2 New Member

    Messages:
    8
    Likes Received:
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    GPU:
    Vega 64
    I have MSI AB 64 and based on TPU https://www.techpowerup.com/vgabios...X+Vega+64&interface=&memType=&memSize=&since= it looks like this is the newest bios from date compiled.

    However, I am not able to flash any other bios to my card, winATI gives me an error stating "SubsystemIds mismatch" is there anything I can do to solve this?
     
  19. Flanker35M

    Flanker35M Active Member

    Messages:
    52
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    18
    GPU:
    MSI SeaHawk 2080Ti
    Hi!

    My PowerColor Red Devil Vega 64 has BIOS Version 016.001.001.000, BIOS Date 2018/01/08 22:12 according to Adrenalin info. Worth upgrading it to some specific version? And which switch position to flash(and how): Silent, Balanced or Turbo?
     
  20. OnnA

    OnnA Ancient Guru

    Messages:
    9,397
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    1,908
    GPU:
    Vega 64 XTX LiQuiD
    Last edited: Nov 27, 2018
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