Hey guys, im looking to change my desktop's graphics card, as its been acting up recently. These are my current comp's specs. I need to know if I upgrade my card to like the GTX 7XXX or 6XXX series running 3/4gb VRAM, will my comp be able to support? And also, will upgrading my ram to a DDR5 have any major impact on its processing speeds? Sorry for the noob questions as I really have limited knowledge on this field.
H8-1090D(HP) Model
Graphics Card - NVIDIA GTX460 with 2GB dedicated graphics memory
RAM - 8GB PC3-10600 DDR3 (4x2048)
Processor - Intel Core, i7-2600 Processor, 3.4GHz 4 Cores, 8 Threads with Enhanced Intel Speedstep Technology EIST, Intel EM64T, Execute Disable Bit
System type - x64- Based PC
Thanks for the respnses in advance!