Question: Is there already a discussion going on about possible energy savings by switching off a shader block? Since in techpowerup and computerbase.de test the unpatched amd radeon 4830 (having 560 shader count) seems to require less power than the powercolor 4830 having 640 shaders. Could somebody try this out, please? Maybe this could be a new strategy for 4850/70 energy savings/Powerplay? Another interesting way would be to try rivatuner shader block bit masking.What's the real difference in the old and new amd bios?