I have an AHTEC Sense XHLB2 (a relabeled version of the Compal HLB2) that has a VGA ATI Radeon HD 4650.
When I switch off the power plug and run into battery mode the perfomance of the laptop is severely affected. After running some benchmarks I found that the VGA results are something between 35% and 200% slower.
How can I avoid the change of the VGA performance even If this makes my battery life shorter?
EDIT: Changed typo from 6450 to 4650.