Vishera 5Ghz FX-9000/8770

[The Stilt]

The electrical and thermal requirements of the FH-infrastructure (220W TDP) parts are quite interesting.

Eventhou I was wrong about the "Centurion" itself, I got most of the specifications right even I had no inside information in my disposal

The base frequency is within the range I expected it to be.
4.6-4.7GHz is the "critical frequency" of Visheras. Up to that point the scaling is quite linear and it can be done with reasonable power consumption. The 5.0GHz boost frequency in the other hand I did not expect as it make no sense to me.
AMD had their reasons for it, however it is not something that I would have personally ever done or advised to be done.

The 220W TDP envelope is simply ridiculous.
It is VERY unlikely that these parts will ever reach anything over 200W even in the worst case scenario.
I would assume the real power consumption is around <170W at the base frequency and up to 190W during the highest boost frequency.
Anything higher than that will result temperatures which are outside the optimal temperature range of a high clocked Vishera part.
The "critical" temperature for a high clocked (<4.8GHz), full configuration (4CU) Vishera is around 60 celsius.

Also the cooling requirements are where I expected them to be.
The requirements (Rth C/W) cannot be achieved with any heatsink.

According to Asetek their 570LX (e.g. Antec 1220) can meet the required Rth on an "unspecified" amount of load.
At the advertised TDP of 220W these Rth values are certainly not going to be met as the system runs out of capacity at around 150W.
The flow, amount of liquid in the loop and the general structure (radiator, block) are simply insufficient for this kind of amount of load.

These are just my personal opinions of course.