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The RX Vega 64 Owners Thread

Discussion in 'Graphics Cards' started by Kaapstad, 14 Aug 2017.

  1. YB2ndBEST

    Hitman

    Joined: 25 Dec 2014

    Posts: 621

    Location: Charlotte, NC

    @AMDMatt can you show Witcher 3 xfire? pweeaaaaaaaaaaaseeee!
     
  2. LtMatt

    Caporegime

    Joined: 12 Jul 2007

    Posts: 34,219

    Location: United Kingdom

    I did, but at 3440x1440 on my Ryzen 1800x system. Few videos on my YouTube channel.

    Just added some more videos above showing x4/x8 MSAA perf cost.
     
  3. LtMatt

    Caporegime

    Joined: 12 Jul 2007

    Posts: 34,219

    Location: United Kingdom

    Not at this time, but i can show you one Vega 64 performance running the Witcher 3.
     
  4. kundi

    Associate

    Joined: 10 Aug 2017

    Posts: 81

    Yeah. I was just interested in the scaling. I'm sure I'll find out soon after the driver goes live.
     
  5. LtMatt

    Caporegime

    Joined: 12 Jul 2007

    Posts: 34,219

    Location: United Kingdom

    Here's a Rise Of The Tomb Raider video, Vega 64 CrossFire, DX12.



    Excuse the spam, been sitting on these videos for a while.
     
  6. Chrisc

    Wise Guy

    Joined: 29 Jun 2016

    Posts: 1,821

    Location: Up Norf

    They look incredible.
     
  7. kundi

    Associate

    Joined: 10 Aug 2017

    Posts: 81

  8. YB2ndBEST

    Hitman

    Joined: 25 Dec 2014

    Posts: 621

    Location: Charlotte, NC

    Only reason I ask about xfire and witcher 3 is that was the last straw that made me sell my old xfire setup. The frame pacing was wretched and all over the place. I used to love crossfire and am hoping it's worth it now.
     
  9. LtMatt

    Caporegime

    Joined: 12 Jul 2007

    Posts: 34,219

    Location: United Kingdom

  10. heartburnron

    Mobster

    Joined: 30 Mar 2016

    Posts: 2,689

    Location: East Lothian

    Downloading 17.9.2 drivers just now...
     
  11. silversurfer

    Capodecina

    Joined: 13 Jul 2004

    Posts: 19,193

    Location: Stanley Hotel, Colorado

    Very rough result I have not double checked every setting so it might not be accurate but I did the two uniengine benchs before & after 17.9.2 and its 6% and 1.8% faster
     
  12. YB2ndBEST

    Hitman

    Joined: 25 Dec 2014

    Posts: 621

    Location: Charlotte, NC

    Thank you :D
     
  13. JediFragger

    Capodecina

    Joined: 18 Oct 2002

    Posts: 24,583

    Location: Stoke-on-Trent

  14. vsg28

    Wise Guy

    Joined: 12 Jan 2014

    Posts: 1,561

    Matt, any chance you could explain this:

    [​IMG]

    I know it's mixed, but that still shouldn't be anywhere like this.
     
  15. LtMatt

    Caporegime

    Joined: 12 Jul 2007

    Posts: 34,219

    Location: United Kingdom

    Yes i know, but often its nothing to do with poor frame pacing and there are other issues at play. If only it was just as simple as adjusting an algorithm to to try and distribute frames evenly to each GPU.

    Multi GPU is always going to work with some, work poorly with others and not work at all in some cases where either the game engine flat out does not support it, or there are issues within the engine/code that prevent an optimal MGPU experience.

    Several of the games don't have a CrossFire profile and several of those game engines flat out don't support MGPU, Doom Vulkan, Deus EX DX12, Resident Evil 7 and COD:IW for example.

    Deus EX DX11 we have a CrossFire profile, Doom OpenGL we don't as Vulkan is so much better.

    Rainbow Six Siege does not have a profile.

    Dawn of War 3 has a profile, gonna test that one if i can get a free key.

    BF1 does scale well, but it runs poorly with stutter on DX11 and DX12. I disable CrossFire flat out in this title.

    I don't have all of those games to test, but i get excellent scaling in Prey and decent scaling in F1 2016. That said, i don't know if we validate/support mixed CrossFire configs (Vega 64 with 56) so that could explain some of their strange results.

    Dishonoured 2, Stryx 2, I've no idea about these games. Never played them and not sure if we even have profiles. If the game is limited CPU wise, we likely wouldn't even bother trying to shoe horn in a CrossFire profile with little to no scaling.

    Do you have a link to this testing?
     
    Last edited: 22 Sep 2017
  16. LeJosh

    Capodecina

    Joined: 24 Sep 2008

    Posts: 10,434

    Location: Edinburgh.

    Hey,

    I'm just wondering what a safe overclock on the memory would be?

    1050MHz is fine and stable so far.

    Edit - Nope, just me being dumb and misreading the situation.
     
    Last edited: 22 Sep 2017
  17. Boomstick777

    Capodecina

    Joined: 2 Jan 2012

    Posts: 11,601

    Location: UK.

    Good card this VEGA 64, mine cost around a GTX 1070 but performs much much better, I'm positive this is faster than the 1080's I have used. Not as fast as the 1080 Ti mind, but we're talking a price difference of near £300.

    Get a good deal on a 56 or 64 and you will be laughing xD

    Glad AMD is back.
     
  18. old gamer

    Mobster

    Joined: 6 Jan 2011

    Posts: 4,453

    Location: bristol

    Thinking back my 56 cost about £100 less than I paid for a 7970 back in the day
     
  19. djbully

    Gangster

    Joined: 7 Nov 2013

    Posts: 270

    Location: Southampton

    @AMDMatt How are you finding the power requirements for Xfire? I dont have mine setup yet, but I'm thinking that I wont be able to go 50% powerlimit with xfire. I have EVGA Supernova 1000W Platinum.

    I'm thinking, if I can keep it to 400W per card leaving 200W ish for CPU I should be ok?

    Cheers,
     
  20. V F

    Capodecina

    Joined: 13 Aug 2003

    Posts: 17,682

    Location: UK

    Pfft, it is not spam. It is nice to see.