i have a new video card in my gaming pc and my cpu score is 5.4 in windows when my video card score is 7.0
my cpu is amd athlon 64 x2 4200+ OC oto 2.6ghz
my gpu is Diamond Radeon hd 6570 2gb gddr3 750mhz core memery 800mhz plz reply
yes your cpu is slow and old. your graphics card isnt very good either, but you would definitely see performance increase from a cpu upgrade. unfortunately for you your system is so old you would have to upgrade cpu, motherboard and ram at the same time.
Phenom II X4 964, if a motherboard is needed a asus M5A78L, and 1600 MHz RAM, $100 for cpu, $60 for mobo, $20-40 on ram matters if u get 4 or 8gb, recommended a 7770 or 640 gt, or 650 gtx, if u were looking towards some new components, am3 does support the use of ddr2 but it will rlly lower ur performance