AMD Radeon RDNA2 Navi (RX 6500, 6600, 6700, 6800, 6900 XT)

Discussion in 'Architecture and Products' started by BRiT, Oct 28, 2020.

  1. Leoneazzurro5

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    Difficult to compare about efficiency when in 2 cases out of three AMD cards have more memory
     
  2. pharma

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    I did not hear them say, but did they use AMD's latest 5 series CPUs in the card benchmarks? Since they are supposed performance gains when paired do I also have to buy a 5 series to reach the same benchmark scores?
     
  3. pjbliverpool

    pjbliverpool B3D Scallywag
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    In what way does HBCC (which wasn't mentioned here at all, and isn't supported supported on Navi 1) equate to GPU accelerated decompression of the data stream from the SSD? These are two entirely different technologies.

    And yes, the RX6000 supports Direct Storage, this was never in any doubt. However there has been no information about GPU based decompression which works alongside Direct Storage.
     
  4. Malo

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    How is it related to Konami?
     
  5. Leoneazzurro5

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    Yes, they used a 5900X in all benchmarks.
     
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  6. pharma

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    That's a substantial investment ...
     
  7. Leoneazzurro5

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    Not so much over a 10900K.
     
  8. marifire

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    Thats right, but memory power is known too so we could calculate, and its clear both arks are not far from each other in perf/watt, maybe AMD a bit better if you want, but considering 7nM should have some 15% advantage just for the node, very close...Looks like this is the trend this gen with both parts offering different amount of video memory. Will be just weird to see RX 6700 XT with 192-bit and 12GB more than 3080s 10GB
     
  9. Scott_Arm

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    The guys shirt has the button sequence for the old konami code on it.
     
  10. pharma

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    Compared to not purchasing another CPU and motherboard just to achieve these benchmark results ...
     
  11. Malo

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    ok, not a console guy. It's meaningless to me.
     
  12. Leoneazzurro5

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    And your point is? You can use the card without a Series 5000 CPU, and performance without Rage mode and SMA was shown in the case of the 6800XT.
     
  13. LordEC911

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    I know you though... that is why I dismissed your post. You indirectly asserted the original post which, in itself, is the false premise I was questioning.
    Interesting, how you are skeptical NOW about RT performance but weren't when you purchased your RTX2080Ti? Or before you sold your 2080Ti.
     
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  14. pharma

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    Great. Then the expected performance should match the reviews once out.
     
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  15. Lurkmass

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    I think the reason for the absence of RT benchmarks by AMD is down to the fact that most current implementations aren't optimized to use inline ray tracing feature which could explain some potential performance deficit ...
     
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  16. Cyan

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    size comparison 3090 vs 6900XT to the left and 3080 vs 6800XT to the right

    [​IMG]
     
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  17. pjbliverpool

    pjbliverpool B3D Scallywag
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    I wouldn't call it trolling if people like myself who are considering getting one of these vs Ampere want to know whether it's RT performance - which will likely make it's way into most games this generation thanks to the consoles, is going to be on par with the currently shown, very impressive rasterization performance. I for one would feel quite let down if I purchased a 6800XT now on the back of these benchmarks only to find later on that in games with RT enabled it performs more like a 3070 than a 3080. I think this is a very important question to have answered.

    The 6900XT comparison vs the 3090 used Rage mode. The others didn't.

    It's about 15% at 4K according to TPU (and in some cases can certainly be more). So it does seem that the 11% uplift in resources from the 6800XT to the 6900XT will struggle to bridge that gap if the 6800XT = 3080.

    https://www.techpowerup.com/review/msi-geforce-rtx-3090-gaming-x-trio/32.html

    Makes sense, they do the same on their official specs page:

    https://www.amd.com/en/products/specifications/compare/graphics/10516,10521,10526

    According to Toms, "Smart Memory Access" requires specific developer support. So it's curious why AMD are including it here for older games which presumably don't have it.

    https://www.tomshardware.com/news/a...-with-ryzen-5000-cpus-via-smart-memory-access
     
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  18. pjbliverpool

    pjbliverpool B3D Scallywag
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    Interesting comparison. I just hope AMD can match Nvidia's very impressive performance on the noise front as well.
     
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  19. Leoneazzurro5

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    Hmm.. Frank Azor says a different thing, it works right now, it requires developer support for gaining maximum effect.


    Around minute 12
     
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