messi da parte i driver ed il loro ridicolo stato, è chiaro che r600 era 
nato e doveva presentarsi con i 65 nm, ma il ritardo ha fatto desistere amd
ritardo probabilmente causato dalla fusione con ati e dall'impegno verso la 
versione console della gpu


1230MHz stable enough to run a round of 3DMark 03 which makes it the highest 
clocked graphics processor in the world so far. In order to reach this clock 
frequency a raise in core voltage was needed and when fed 1.53V the R600 put 
off a never before seen performance with a high-end graphics card. The card 
would namely have had managed even higher clock frequencies if it wouldn't 
have been for the heat; it was too hot! As mentioned, we were using a solid 
copper container filled with liquid nitrogen with a boiling point of -196°C 
and yet this wasn't enough to cool the R600 beast. At idle the copper 
container's temperature rose from -90°C to around -70°C which made it 
impossible to push the frequencies any further

_________________________________________
The fact that R600 undoubtedly at extreme conditions is too hot even for 
liquid nitrogen clearly shows why AMD chose to postpone the more extreme 
version of the Radeon HD 2900 series. The chip itself is very power hungry, 
but the power leaks in the 80nm processor are undoubtedly the reason for 
these extreme power consumptions and the even more extreme heat dissipation. 
This in itself is no good news for AMD, but we could look at it from the 
bright side as well.

AMD has a thoroughly promising graphics processor and our tests indicate 
that the power leaks in the 80nm processor might be even bigger than 
anticipated. With this in mind, if AMD does a good job with its 65nm 
process, as rumored, it has shedloads to accomplish with the R600 core.

The fact is that we are looking at a 80nm graphics core that leaks power 
like no other but despite this it has no problems reaching higher 
frequencies with the right cooling. At 1211MHz which is the highest 
frequency we have proof of, the Radeon HD 2900XT performs an unbelievable 
777GFlops (470GFlops at standard frequencies) which could be compared to 
around 40-50GFlops on todays quad-core CPUs.

Power consumption and heat dissipation with the R600 core is undoubtedly 
going to be debated and tested, which means that this naturally isn't the 
last thing you are going to read on this topic. But the good thing is, you 
don't have to be a rocket scientist to understand how much time AMD is 
currently spending on developing their 65nm version of its Radeon HD 2900XT.

http://www.nordichardware.com/news,6331.html

il lato positivo è che la versione a 65 nm potrebbe 'liberare' la potenza 
della gpu, realizzando clock oltre il Ghz con sistemi di raffreddamento 
tradizionali

attualmente per raggiungere tale valore è necessario un sistema di 
raffreddamento a liquido qualunque (con il dissipatore ad aria i test stanno 
più o meno su 850-890 MHz che comunque non è male)


qui una bella guida per l'overclocking con i nuovi world record a 1,2 GHz
http://www.nordichardware.com/Reviews/?page=1&skrivelse=510

conclusione dell'articolo:

During our testing ATI has updated the drivers continuously and at each new 
revision we have noted **significant performance boosts** (questo per un 
certo troll). We can only assume that the performance is going to increase, 
perhaps big boosts with the upcoming versions

toh