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Report: Specifications of AMD's Hawaii GPU Surface

A report from a German news site, 3DCenter.org, has shed some light on the specifications of AMD's upcoming 'Hawaii' GPU. So, without further ado, let's list 'em!

For starters, the chip will supposedly feature up to 2816 stream processors, all of which will be split among 44 different clusters. This means that each disabled cluster takes along 64 stream processors for weaker cards. In all likelihood, the Hawaii chips will feature either 32 or 48 ROPs along with about 176 TMUs. The chip will be built on the 28 nm lithography and manufactured by TSMC. It'll feature the GCN 2.0 architecture, as well as support for DirectX 11.2. The GPU is expected to be clocked at 900 MHz or above. The memory interface will be a 384-bit wide memory interface, carrying GDDR5 memory, though no reference capacity was mentioned in the report.

The report also indicates that it expects the performance of the flagship 'R9 290X' card to be between the GTX Titan and the GTX 690. Needless to say, AMD is directly taking on Nvidia's GK110 GPU.

AMD will likely be showcasing the GPUs next week, with sales starting around the mid-to-end of October, starting with the Radeon R9-290 (Hawaii Pro) and the Radeon R9-290X (Hawaii XT).

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  • anort3
    The 290X is supposed to be a dual GPU successor to the HD 7990. At least according to Videocardz.com. That does not make it very impressive to be between the Titan and GTX 690. The 280X is the HD 7970 successor.
    Reply
  • jimmysmitty
    Well 5 more days till AMD "announces" it.

    The rumors have went from doubling SPUs to a small increase to this which seems promising if true.

    Hopefully they also get driver performance up in time.
    Reply
  • jimmysmitty
    11573174 said:
    The 290X is supposed to be a dual GPU successor to the HD 7990. At least according to Videocardz.com. That does not make it very impressive to be between the Titan and GTX 690. The 280X is the HD 7970 successor.

    I would assume that's a typo then and the HD7990 is already near the GTX690 and there is no way with more SPUs that it would be slower than the HD7990.

    I assume they meant R9-280X
    Reply
  • cmartin011
    I have been waiting for these gpus for seeming for ever god let them be real. Keep up with amd. Make the drivers better and better
    Reply
  • ingtar33
    looking forward to this launch. hope its as impressive as it sounds.
    Reply
  • Someone Somewhere
    Now, just price them nicely.
    Reply
  • vmem
    hmm, similar clocks, similar memory BUS as the 7970, and really not THAT many more stream processors. thus, the performance per stream processor has to go up significantly to land between the Titan and the 690.

    if AMD can pull a 28nm chip Titan killer out on a 30% smaller die... I can't wait for their 20nm chips LOL
    Reply
  • Someone Somewhere
    7970 has 2048 stream processors. This has 2816, about 40% more. Add some architectural improvements, and it could get pretty close.
    Reply
  • jimmysmitty
    11573333 said:
    7970 has 2048 stream processors. This has 2816, about 40% more. Add some architectural improvements, and it could get pretty close.

    From what I have seen the Titan is generally 30% better than the HD7970 GHz.

    This will also probably be based on the same GCN arch that went into the HD7790, which when OCed could contend with the HD7850 in some cases so I would assume there will be decent performance buffs for the R9-280X.

    I am hoping for more VRAM though. 3GB is nice but would prefer 4GB or maybe 6GB. But that will also make the price less attractive.
    Reply
  • Someone Somewhere
    Well, it's still got the 384-bit bus. You're likely to see multiples of three for memory, so probably 3GB, maybe 6GB.

    They might do a 4.5GB though.
    Reply