What power levels can the tiptronic with the 2.7T handle with respect to HP and torque?

I consider upgrading the 2.7T with the turbos of the RS4, but would like the convenience of the auto trans.

 

I found the following information for the transmission:

The ZF 5HP24 is a five-speed automatic transmission for passenger cars from ZF Getriebe GmbH Saarbruecken. Introduced in 1996, it is still in production, and has been used in a variety of cars from Audi, BMW, Jaguar, and Land Rover - all with a front mounted longitudinal engine.
HP24A

Four-wheel drive version used in Audi (quattro) and Volkswagen Passenger Cars (4motion) marques of the Volkswagen Group:

• 1997–2003 Audi A8 (D2) 4.2 V8
• 1998–2003 Audi S8 (D2) 4.2 V8
• 1999–2003 Audi A6 (C5) 4.2 V8
• 1999–2003 Audi S6 (C5) 4.2 V8
• 2000–2002 Audi S4 (B5) 2.7 'biturbo' V6
• 2000–2003 Audi A8L (D2) 4.2 V8
• 2002–2004 Audi RS6 (C5) 4.2 biturbo V8
• 2002–present Volkswagen Phaeton (Typ 3D)

Based on the cars this transmission has been put in, can I deduct that it is capable of similar levels, for example RS6 (450HP, 413 ft*lb)? Is it the same trans used for the S4, A6 4.2 AND the S6? What trans is installed in the A6 2.7?