Comparing Processors

Hi Everyone,


I'm looking to upgrade my desktop's pentium processor. I've found two possible replacements. One is an i5 and the other is an i7. The i7 looks better(duh), but I'm wondering if it is compatible with my machine. Here are the two processors and the info of my computer. Are both or either of these processors compatible with my machine?

The processor I have: http://www.newegg.com/Product/Produc...82E16819116399

The i5: http://www.newegg.com/Product/Produc...82E16819116876

The i7: http://www.newegg.com/Product/Produc...82E16819116503

System Info:
OS Name Microsoft Windows 7 Home Premium
Version 6.1.7601 Service Pack 1 Build 7601
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Manufacturer LENOVO
System Model IdeaCentre K330B
System Type x64-based PC
Processor Intel(R) Pentium(R) CPU G620 @ 2.60GHz, 2600 Mhz, 2 Core(s), 2 Logical Processor(s)
BIOS Version/Date LENOVO DPKT21A, 8/8/2011
SMBIOS Version 2.6
Windows Directory C:\windows
System Directory C:\windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "6.1.7601.17514"
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 7.98 GB
Available Physical Memory 5.96 GB
Total Virtual Memory 16.0 GB
Available Virtual Memory 13.8 GB
Page File Space 7.98 GB
Page File C:\pagefile.sys

Also, I don't if it is relevant or not, I have an AMD Radeon HD 6570 graphics card.

I want to have this figured out before Cyber Monday when, hopefully, the stuff I need will go on sale. Thanks everyone.