The 7800 GTX was going to be left ?as-is? with a single slot cooler and 430 MHz core speeds. What was going to be in the air was where it would be introduced at in terms of price. If the R520 was the performer that NVIDIA feared it would be, then NVIDIA was expecting X1800 XL, X1800 XT, and X1800 XT/PE editions. If that was the case then the 7800 GT would be introduced at $399, the 7800 GTX at $499, and the 7800 Ultra at $649 to compete with everything ATI could throw at them.
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One of the first things to be developed for the ?Ultra? was the cooling system. This had to be quite robust yet avoid the ?Dustbuster? reputation that NVIDIA accrued during the disastrous FX 5800 Ultra days. The design they came up with was the one initially spotted with the Quadro FX 4500 version using the G70. The core of the cooler is copper (which touches the GPU die), while the fins are aluminum. Copper is outstanding at transferring heat, but is not as effective as aluminum at dissipating heat into air. The combination of a copper core and aluminum fins insures that the heat is more evenly spread throughout the cooler, and it maximizes heat dissipation in air. The addition of heatpipes also helps to more evenly spread the thermal load. The 80 mm fan does a very good job of pushing air yet staying fairly quiet. Overall the cooler NVIDIA developed is quite impressive.
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NVIDIA now has officially dropped the MSRP on the 7800 GTX to $499 and the 7800 GT to $399.
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Fast GDDR-3 memory is also in much greater supply, and this again brings the total board cost down
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The R580 looks to be a breakout product for ATI, and it will provide NVIDIA with some real competition come late Winter 2006. NVIDIA will be ready to respond to this attack with their 90 nm Low-K high end product.
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NVIDIA will not stop at just clock speed. We can expect that it will have a full 8 quads of pixel shaders, 10 vertex shaders, and 16 ?Super? ROPS that will be able to handle the output of those shaders.
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I have heard rumors that the AA unit will be getting a makeover and it will be able to handle HDR anti-aliasing. I have also heard rumors that texture filtering will also be getting a boost and we can expect texture quality to match that of the older FX series. This product could easily hit 380 million transistors, and with the addition of 90 nm Low-K (remember, the regular G70 is 110 nm FSG- it does not get a transistor performance increase by using Low-K) this product will hit some impressive clockspeeds. One thing that does not look to change will be the memory controller. NVIDIA does not feel the need for a programmable memory controller like ATI has as of yet, and will instead rely on faster GDDR-3 memory to make up the difference.