Girano bruttissimi rumors anche sulle prestazioni
www.semiaccurate.com...20/semiaccurate-gets-some-gtx480-scores/
Giudicate voi:
GTX480 is too hot, too big, too slow, and lacks anything that would recommend it over a HD5870, much less the vastly faster HD5970. Nvidia is said to be producing only 5,000 to 8,000 of these cards, and it will lose money on each one. The architecture is wrong, and that is unfixable. The physical design is broken, and that is not fixable in any time frame that matters. When you don't have anything to show, spin. Nvidia is spinning faster than it ever has before
The GTX480 with 512 shaders running at full speed, 600Mhz or 625MHz depending on which source, ran on average 5 percent faster than a Cypress HD5870, plus or minus a little bit. The sources were not allowed to test the GTX470, which is likely an admission that it will be slower than the Cypress HD5870.
On the GTX470 side, there are 448 shaders, and the clocks are set at 625MHz and 1250MHz in both cases. If the GTX480 is really at 600Mhz and 1200MHz, and the GTX470 is slightly faster, it should really make you wonder about the thermals of the chip. Remember when we said that the GF100 GTX480 chip was having problems with transistors at minimal voltages? Basically Nvidia has to crank the voltages beyond what it wanted to keep borderline transistors from flaking out. The problem is that this creates heat, and a lot of it. Both of our sources said that their cards were smoking hot. One said they measured it at 70C at idle on the 2D clock.
La GTX480 staccherà una HD5870 solamente del 5%, la GTX470 sarà evidentemente più lenta (forse più della 5850) nVidia non avrà nessuna scheda in grado di contrastare con la 5970 e mettere due GF100 assieme è da pazzi per i consumi e le temperature raggiunte (70°C in idle!!!).
Si prevedono dalle 5.000 alle 8.000 schede prodotte entro la metà del 2010 (e poi chi aveva problemi di disponibilità?). E come se non bastasse tutto in evidente ritardo.
Sono solamente rumors ma se solamente una parte sono veri fermi è nato male e sta continuando peggio a questo punto bisogna vedere che farà Ati...