I'm a neophyte and new to Tom's Hardware,so please bear with me. My pc has an AMD Athlon II x240 dual core x64 bit processor. The memory is DDR2 dual core pc-2 5300 333mhz. 2 slots,2 gig each. My question: Is upgrading my ram worth the exspense? I do some gaming. I have a ATI Radeon HD 4650 with 1 gig ram also if that helps. Thanks.