1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

AMD Readying Radeon HD 4790 Based on RV790

Discussion in 'News' started by btarunr, Jun 15, 2009.

  1. btarunr

    btarunr Editor & Senior Moderator Staff Member

    Joined:
    Oct 9, 2007
    Messages:
    28,260 (11.35/day)
    Thanks Received:
    13,586
    Location:
    Hyderabad, India
    AMD is preparing yet another performance-mainstream Radeon HD 4000 series SKU. The Radeon HD 4790 finds lineage from the Radeon HD 4890, currently AMD's fastest GPU. The RV790 GPU will be given a new set of specifications and memory configuration, to yield an SKU that performs better than the Radeon HD 4770, and slightly better than HD 4850. It beats us as to why it is positioned in the HD 4700 series, and not say "Radeon HD 4860", but we are too late to comment on that.

    Specifications-wise, the RV790 core runs at 600 MHz, slightly lower than the RV770 in Radeon HD 4850 (625 MHz), but its performance increment over it comes from the use of GDDR5 memory. The GPU makes use of a 256-bit wide GDDR5 memory interface. It handles 512 MB of memory clocked at 800 MHz (3200 MHz effective). Being based on the RV790, it is pin-compatible with any existing HD 4890 PCB. Price-wise, it is expected to sit between the HD 4850 and HD 4870.

    [​IMG]

    Source: IT168
  2. Odin Eidolon

    Odin Eidolon New Member

    Joined:
    Feb 12, 2008
    Messages:
    921 (0.39/day)
    Thanks Received:
    156
    Location:
    Rockclimbing somewhere in Italy
    so its 55nm?
  3. [I.R.A]_FBi

    [I.R.A]_FBi New Member

    Joined:
    May 19, 2007
    Messages:
    7,664 (2.91/day)
    Thanks Received:
    540
    Location:
    c:\programs\kitteh.exe
    ati is just dumping out cards
  4. WhiteLotus

    WhiteLotus

    Joined:
    Jul 30, 2007
    Messages:
    6,530 (2.55/day)
    Thanks Received:
    847
    swamping the market, one way to make sure you get cards sold!
  5. btarunr

    btarunr Editor & Senior Moderator Staff Member

    Joined:
    Oct 9, 2007
    Messages:
    28,260 (11.35/day)
    Thanks Received:
    13,586
    Location:
    Hyderabad, India
    Yes, 55 nm.
  6. Odin Eidolon

    Odin Eidolon New Member

    Joined:
    Feb 12, 2008
    Messages:
    921 (0.39/day)
    Thanks Received:
    156
    Location:
    Rockclimbing somewhere in Italy
    bah. i dont see much sense in this card other than that of selling out stocked chips. ATI's lineup is becoming too crowded
  7. Cheeseball

    Joined:
    Jan 2, 2009
    Messages:
    652 (0.32/day)
    Thanks Received:
    79
    So are they phasing out the HD 48xx series cards now? The performance is supposed to be between the HD 4850 and HD 4870.
  8. cdawall where the hell are my stars

    Joined:
    Jul 23, 2006
    Messages:
    20,653 (7.05/day)
    Thanks Received:
    2,972
    Location:
    some AF base
    this card really makes no sense...


    is it xfireable with a 4890? :wtf:
  9. lemonadesoda

    lemonadesoda

    Joined:
    Aug 30, 2006
    Messages:
    6,246 (2.16/day)
    Thanks Received:
    963
    Hmm. ATi is struggling with getting 40nm fabbed. It is having to create another 55nm SKU to fill the "consumer gap" in the 4770 space. The "hope"? So people think they are buying into the 47xx range of price, low power, silent, and one step quicker than a 4770. But actually, they are getting an "underperforming" 4870/4890 with similar power consumption levels.

    While it might still be a good card and a good price/performance ratio, it isnt a step forward, just yet another SKU-confusion to price gouge in the retail channels where the typical consumer doesnt know sh1t.
  10. Odin Eidolon

    Odin Eidolon New Member

    Joined:
    Feb 12, 2008
    Messages:
    921 (0.39/day)
    Thanks Received:
    156
    Location:
    Rockclimbing somewhere in Italy
    uhm... i think so? but not sure
  11. KainXS

    KainXS

    Joined:
    Sep 25, 2007
    Messages:
    5,600 (2.24/day)
    Thanks Received:
    501
    this is more than likely just to get rid of the cores that are low binned and can't run at the stock freq's of the 4890

    its just a 4890 with a low core clock thats it

    as a matter of fact that card is exactly the same as the Powercolor HD4890 from the looks, the PCB even has the same model number on it.
  12. newtekie1

    newtekie1 Semi-Retired Folder

    Joined:
    Nov 22, 2005
    Messages:
    19,726 (6.21/day)
    Thanks Received:
    5,869
    I really don't get ATi here, it seems they are trying to flood the market to make up for their failure to successfully get 40nm out in reasonable quantities.

    This card just adds more confusion to the mix. It seems to me like ATi wanted to use 40nm for the HD4770 series, but because they couldn't get enough 40nm chips, they have instead used their other higher end chips to make the cards. That doesn't make sense to me really, why not keep the RV790/770 chips named HD4800, and forget about HD4770.

    We still don't even know what the HD4730 can be used with in Crossfire...

    Why not use those cores in the HD4870s then?
    Crunching for Team TPU 50 Million points folded for TPU
  13. Kitkat New Member

    Joined:
    May 14, 2009
    Messages:
    768 (0.40/day)
    Thanks Received:
    77
    k so im officialy ready to admit this is too many cards. gettin silly. I also dont think it has anything to do with consummer gaps lol just alot of cards.
  14. btarunr

    btarunr Editor & Senior Moderator Staff Member

    Joined:
    Oct 9, 2007
    Messages:
    28,260 (11.35/day)
    Thanks Received:
    13,586
    Location:
    Hyderabad, India
    TSMC, not specifically AMD. They've got some serious fab issues, and both AMD and NVIDIA are looking for potential alternatives if TSMC gives them a hand when it's time for their 40 nm GPUs.
  15. KainXS

    KainXS

    Joined:
    Sep 25, 2007
    Messages:
    5,600 (2.24/day)
    Thanks Received:
    501
    they probably don't want to get it all mixed up and cause confusion, but then again those cores might not even clock to 4870 frequencies either efficiently

    Its not that many cards I mean theres only gonna be 12 HD4XXX cards with this, but including nvidia's nearly 20 current cards now I still say not really
  16. scope54

    scope54

    Joined:
    Mar 19, 2005
    Messages:
    269 (0.08/day)
    Thanks Received:
    29
    Location:
    Southern California :)
    imo this is stupid, and i call shens....until i see a real press release.
  17. leonard_222003 New Member

    Joined:
    Jan 29, 2006
    Messages:
    241 (0.08/day)
    Thanks Received:
    25
    Strange card with a strange number , overclocked can be just as good as a 4870 , the next generation must be very good if they dump the old stock so quickly , they make me curios how fast the new generation will be to dump the 4800 series so cheap.
  18. newtekie1

    newtekie1 Semi-Retired Folder

    Joined:
    Nov 22, 2005
    Messages:
    19,726 (6.21/day)
    Thanks Received:
    5,869
    Using the RV790/770 in HD4700 cards adds way more confusion than simply using RV790 cores in HD4870 cards. The general user wouldn't know the difference, and the RV770 and RV790 are virtually identical. They certainly are a lot closer to eachother than they are to RV740. And if they don't clock to HD4870 speeds, put them in HD4850's then. I find it hard to believe that an RV790 couldn't at least do 625MHz. Why release a whole new card to take the place of the HD4850 instead of just using the RV790 cores in the HD4850s?

    As for who has more cards in production:

    Column 1 Column 2
    0 ATi: 13 nVidia: 11
    1 HD4350 9300GS
    2 HD4550 9400GT
    3 HD4650 9500GT
    4 HD4670 9600GT
    5 HD4730 9600GSO
    6 HD4770 9800GT
    7 HD4790 GTS250
    8 HD4830 GTX260 216
    9 HD4850 GTX275
    10 HD4870 GTX285
    11 HD4890 GTX295
    12 HD4850x2
    13 HD4870x2


    I don't see where you are getting 20...
    Crunching for Team TPU 50 Million points folded for TPU
  19. djisas

    djisas

    Joined:
    Jun 26, 2007
    Messages:
    1,712 (0.66/day)
    Thanks Received:
    324
    Location:
    Darkness
    I bet these will sell well and ppl will try to oc the living shit out of them...
    If some finds a way to oc it to 800+ i bet the stock's will be sold out...
  20. erocker

    erocker Super Moderator Staff Member

    Joined:
    Jul 19, 2006
    Messages:
    39,536 (13.47/day)
    Thanks Received:
    13,937
    4870 replacement.
  21. kn00tcn

    kn00tcn

    Joined:
    Feb 9, 2009
    Messages:
    665 (0.33/day)
    Thanks Received:
    118
    Location:
    Toronto
    where did 9800gtx, 9800gtx+, gtx280, gtx260 original go?
  22. erocker

    erocker Super Moderator Staff Member

    Joined:
    Jul 19, 2006
    Messages:
    39,536 (13.47/day)
    Thanks Received:
    13,937
    Though completely off topic:
    9800GTX = No longer in production/replaced by 9800GTX+
    9800GTX+ = Renamed to GTS 250
    GTX260 = No longer in production/replaced by 55nm 216 shader GTX 260
    GTX280 = No longer in production/replaced by GTX 285
    newtekie1 says thanks.
  23. Easo

    Easo

    Joined:
    May 19, 2009
    Messages:
    824 (0.43/day)
    Thanks Received:
    78
    Location:
    Latvia
    SOOOOO.... IT has happened, card with lower "number" beats mine 4850... QQQQ :/
  24. KainXS

    KainXS

    Joined:
    Sep 25, 2007
    Messages:
    5,600 (2.24/day)
    Thanks Received:
    501
    naa i was tryin to say about 20 altogether but forgot to put it in a understandable manner:laugh:

    sry for the confusing post

    but I wouldn't include the 4830, or 4850x2 since ati is replacing the 4830 and they never truly supported the 4850x2 anyway
  25. Initialised

    Joined:
    Jul 5, 2008
    Messages:
    264 (0.12/day)
    Thanks Received:
    35
    So this is the 4890 512MB

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)

Share This Page