Help Needed regarding building a new pc

Hello! I am going to build a new pc and quite very confused regarding this.
Please tell which will be better of the gollowing setup:

1. a. Intel Core 2 quad q9650 3.0 ghz
b. Gigabyte Ga-x48-dq6
c. 4 GB of ddr2 ram 1066 Mhz
d. Msi r4870 1gb
e. Gigabyte Odin GT 800 PSU
f. Gigabyte Sumo Case
g. 500 gb WD hard disk
f. DVD WR


OR

2. a. Intel i7 920 2.66 ghz
b. Gigabyte ga-x58-extreme
c. 6 GB of ddr3 ram 1600 Mhz
d. Msi r4870 1gb
e. Gigabyte Odin GT 800 PSU
f. Gigabyte Sumo Case
g. 500 gb WD hard disk
f. DVD WR

Guys i need your help please help me i want to build a gaming pc