Balancing out performance with long battery life is a thorny issue because GPUs are hungry little bastards.
My midrange-performance Toshiba Satellite (A665D-S6082) will last about three hours on Eco-Mode and can play Portal quite effectively.
My midrange-performance Toshiba Satellite (A665D-S6082) will last about three hours on Eco-Mode and can play Portal quite effectively.