Urgh, those cards aint all that good, bud. TurboCache and HyperMemory are fancy names for cheap, underpowered cards that have the bare minumum of onboard RAM (Usually 32meg) and borrow the rest from main system RAM, thus depriving the system of resources.
You'd be far better off getting a better specced lappy, as those will not do games any justice, IF they run them at all. Those cards are really desogned for people who dont care about 3D or system performance.
Look around online. Its worth spending that little bit extra to get something nicer, than have to struggle with crappy low end heaps like those. I woulsnt even install those cards in a Mac, thats how bad they are.