I have a MSI 0A90 [Intel 936GZ (Broadwater-GZ)+ICH7] Mother Board, Gigabyte GeForce 7300GS (256MB DDRII PCIE), 3GB (2+1) DDRII RAM and running Windows 7 Ultimate 32bit. Currently using the Core 2 Dou (E4500) 2.2Ghrz. Is it worth it to exchange between the two (E4500 and E5300)? Will it make a difference, and in case it will, how big?