SilveRRIng
Power Member
Um apanhado do que se presume até agora acerca das 7900
Um resumo do que se foi "sabendo" até agora acerca das 7900, para ajudar a fazer um ponto de situação.
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First off, Nvidia definitely plans to take back the title of world's fastest video card that ATI took away with the Radeon X1900, which tops out at 650MHz core clock speed. To do this they will be switching to a 90nm manufacturing process, compared to the GeForce 7800 GTX which was .11 micron, this inevitably ran into problems with the GeForce 7800 GTX 512, producing them in large volumes. The 90nm process should help greatly and they will need it as everything so far points to a 700-750MHz core clock speed for the GeForce 7900 GTX. You'll recall from our Asus Radeon X1800XT TOP review that ATI hit that clock speed with that card, but it wasn't produced in mass quantities. Hopefully, Nvidia will be able to produce this level at the supply needed.
Memory is also important and DigiTimes claims there will be 256MB and 512MB versions made, this will be the GeForce 7900 GTX and the GeForce 7900 GT with 256MB. Yes, the two cards will be launching at the same time and currently, while everyone has known it will be during CeBit, it looks like March 9th is the best bet, with a hard launch. The memory will feature a clockspeed of 800-900MHz of GDDR3 memory.
In addition to this, Nvidia will also be bumping up the number of pipelines. While the GeForce 7800 GTX featured 24 pipelines, this number will increase to 32 with the GeForce 7900 Also it will have 32 pipelines, eight more than the GeForce 7800 GTX series of video cards.
Here's a table of how the card stacks up to Nvidia's current best and ATI's as well.
GPU - Clockspeed - Memory - Clockspeed
GeForce 7800 GTX 512 - 550MHz - 850MHz
Radeon X1900XTX - 650MHz - 775MHz
GeForce 7900 GTX - 700-750MHz - 800-900MHz
It should in theory give Nvidia a significant lead over ATI, rather than neck and neck performance. As far as pricing, it should also be competitive with the Radeon X1900 series.
In addition to this comes word from The Register that G73, or GeForce 7600, should launch around the end of next March as well. The GeForce 7600 will be their more mid-range card, though we know little of it simply by going by it's name alone, one wouldn't expect to challenge the GeForce 7800 GT too much at the mid-range level but fill the gap between the 7300 and 7800.
Conclusion:
All in all, it certainly seems as if Nvidia is poised to regain the lead with the GeForce 7900 GTX. It will be interesting though to see exactly how well their 90nm process works and if they'll be able to maintain the yields necessary for such a part at high clock speeds. Without great yields, if they repeat what they did with the GeForce 7800 GTX 512, it will definitely further tarnish the major success they had last year and turn that scratch into a dent. If they can execute properly, though, in price, release date, and yields, ATI's spot in the limelight will be rather short lived and Nvidia will not have much to worry about. As far as ATI's next GPU, R600, it is too far out to know many concrete details but undoubtedly they are working on it, but if Nvidia do follow through excellently they'll need something to counter act the GeForce 7900 GTX sooner than later.
Um resumo do que se foi "sabendo" até agora acerca das 7900, para ajudar a fazer um ponto de situação.
Fonte