Originally posted by: keysplayr2003
Originally posted by: Acanthus
Originally posted by: videoclone
Originally posted by: Acanthus
800mhz? no.
Transistor count is too high. A 110nm card wont do 800mhz with 24 pipes and a PVP.
The only way you will see clockspeeds like this is Direct Phase-change or LN2 on the core.
I would expect 625mhz at the most for stock speeds.
Edit: with very limited overclockablility at that speed (625).
the 7800 core is made like a mobile 6800 that runs of next to nothing power .. thats why they have it on a single slot cooler ..... all thats needed is more Power to the core and this 800Mhz could be real... but as an ultra core it shouldnt be a problem if they dont have great yelds at this speed ..... they just need it out there too keep them at number 1. Fore marketing sakes, no matter how hard it will be to buy one.
typically ultras only have a 0.1v increase over normal cards. Even with a substantial increase in voltage, youre not going to see 80%+ clockspeed increases. Im just trying to sort the FUD out from the even reasonable/realistic specs that the Ultra may have. 800mhz simply isnt possible on 110nm in my opinion. We will see.
Just a thought, but what if 7800GTX cores were clocked extremely low (430) as a trick.
I mean, Nvidia is trying to be real slick this gen. I think if a 7800GTX owner can get over 500MHz on air, single slot, 110nm process, then I don't see 800MHz out of the question for a dual slot refined 90nm core. Sure it's high, but maybe the architecture was done "very right" for it. All spec of course, just something to chew on.