RV560/570 Gemini roadmap

Discussion in 'Architecture and Products' started by kemosabe, Feb 27, 2006.

  1. Pete

    Pete Moderate Nuisance
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    RV530/535 has the same MC, just 128bit (so, half the bus width). RV560 is also supposed to be 128bit. RV570 is supposed to be 256bit.

    ERK, you might want to add the 130mm^2 80nm RV535. Then it's simpler to think of RV560 as a little under double that (MC "width" isn't doubled).
     
  2. ERK

    ERK
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    Wow, taking the 130 mm2 for RV535 and doubling to 260 mm2 is a big difference from my 172 mm2 interpolation. I'm getting the feeling that this whole excercise may be pointless. :)
     
  3. Pete

    Pete Moderate Nuisance
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    Well, obviously things don't scale linearly--not everything, anyway. If those RV570 die shots are right, and it's 67% of R580, then it's about 235mm². So I'm not sure how RV560, with 1/3 fewer fragment shaders, will be anywhere near 260mm².

    Yeah, I tried those calcs last night and just gave up. :) Too many variables I don't know about. But just looking at RV535/RV530 (130mm²/150mm²=~87%, pretty close to 80/90nm=~89%), you're a bit generous with the 90-80nm transition.

    R520 288mm² vs. R580 352mm² might help, but I don't know how. All else equal except the fragment shader units, you can extrapolate a *very* rough 2mm² per fragment shader unit, but that figure doesn't get us anywhere near RV570's apparent die size. 352mm²-16*2mm²=322mm². 322mm²*80nm/90nm=~285mm². Even using RV535/RV530 rather than 80nm/90nm, we only reach 279mm². That's still a long way off the estimated .67% of 352mm², or 236mm², but I didn't account for omitting some vertex shaders and perhaps cache (RV570 probably being optimized for a lower res than R580).
     
  4. trumphsiao

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    I measure up the Die Size of RV560 is roughly 125% that of G71
     
  5. Blazkowicz

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    nitpick : shouldn't it be (80/90)² ? (which is 79%)
     
  6. Pete

    Pete Moderate Nuisance
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    Prrrobably. :oops: That makes RV530->RV535 all the more puzzling. It does get us closer to RV570's estimated die size, though. RV560 remains inscrutable.
     
  7. vertex_shader

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  8. CJ

    CJ
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    According to the source, the X1950Pro is still scheduled for the 17th of October. The X1650XT has been confirmed to be delayed until the 30th of October because of 'technical issues'. According to ATI it should be a hard launch, but rumors have it that this could be a small problem.
     
  9. vertex_shader

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    Now ocworkbench say the same :lol:

    "A few days back we reported that the launch is postponed to 30 Oct. I received news from ATi that the two cards were planned to be launched on seperate dates. ATi X1950Pro on 17 Oct and X1650XT on 30 Oct."
    http://www.ocwforums.com/bbs/showthread.php?threadid=55262
     
  10. no-X

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    Club 3D Radeon X1650XT pictured:

    [​IMG]

    probably reference design PCB
     
  11. trumphsiao

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    I dunno to which extent of possibility drove of people would buy RV560 instead of 7900GS on same price segment ?
     
  12. CJ

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    If X1650XT is available at the suggested €150 price segment while the 7900GS is selling around €199, then the X1650XT is a pretty attractive card at that pricepoint which is faster than the GF7600GT.

    Several shops have already listed the X1950Pro at about €199, so that's the direct competitor to the 7900GS. And you can bet on it that the X1650XT will be prices a bit lower than that.
     
  13. Kaotik

    Kaotik Drunk Member
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    Based on Finnish prices, I doubt RV560 would end up in the same price segment, ATM in the same price segment with 7900GS is X1900GT, which trashes it, and in future, there will be X1950Pro which again, trashes the 7900GS.
     
  14. trumphsiao

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    just got prompt on X1900GT price in China Retail Channel . wow,It's a none-brainer deal (1400RMB=USD 180 ) hope this time ATI would discover prepatent solution to solve RV560 less-sufficient TMU Problem.
     
  15. Jawed

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  16. Rys

    Rys PowerVR
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    It's a tad disappointing to see it without dual-link DVI on at least one port, if retail examples will follow the DT one (and indeed they're correct in what they say). I know I'm not the norm, but I'm always on the lookout for a cheap, v.quiet, somewhat frugal mid-range board, but with the caveat that it can drive my big-ass Dell.
     
  17. Jawed

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    Very strange if the dual-link DVI has disappeared.

    It's not a side-effect of the new CrossFire connectivity is it?...

    Jawed
     
  18. Rys

    Rys PowerVR
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    There should be no output limitations with Crossfire now, present or future. Either they're wrong, or I'd guess it's a pre-production sample curiosity at most.
     
  19. trumphsiao

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    I wager this time RV570 Crossfire efficacious performance shall be better than

    X1800XT solution . But It's too late sans any better Chance to encounter Price-Cut 7900GS/7950GT
     
  20. Jawed

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    Now doubt about it, it's late - several months. Once G80 is on the market (2 weeks after RV570), RV570 will be competing against G71/7900GTX/GTO.

    Makes me wonder if the lateness of this has been impacted by trying to make R600 less late.

    Jawed
     
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