ATI Radeon HD 4000 Series discussion

[adamsleath]

ffs wot is clamshell mode? is that like put-head-in-sand-mode?cos that's the mode i run in
where's my macbook.

Operation in clam shell mode has no impact on
system band width.
Example: System configurations with 512M GDDR5 device using a controller with 256 bit interface:
A) 8pcs of 512M GDDR5 in standard mode ➔ Frame buffer: 512 MB
B) 16pcs of 512M GDDR5 in clamshell mode ➔ Frame buffer: 1 GB

from "the whitepaper" link...