HP ProBook 4720S upgrade to i7 820QM - info need

Hi, Now I have HP ProBook 4720S :

Processor Name: Intel Pentium P6200
Codename: Arrandale
Specification Intel(R) Pentium(R) CPU P6200 @ 2.13GHz
Package (platform ID) Socket 989 rPGA (0x4)
CPUID 6.5.5
Extended CPUID 6.25
Core Stepping K0
Technology 32 nm
TDP Limit 25 Watts

Chipset Northbridge Intel Havendale/Clarkdale Host Bridge rev. 02
Chipset Southbridge Intel HM57 rev. 05

Display adapter:
Name ATI Mobility Radeon HD 6370
Memory size 1024 MB
Performance Level 0
Core clock 405.0 MHz
Memory clock 800.0 MHz
Performance Level 1
Core clock 405.0 MHz
Memory clock 800.0 MHz
Performance Level 2
Core clock 750.0 MHz
Memory clock 800.0 MHz

So my question is, may I upgrade to i7 820QM Quad Core?
Thank you!

 

Any thing more than a i7 740qm isn't going to be cheap and fairly expensive but the performance gains in threaded apps will be huge. Disable the hyperthreading (in Bios) and performance in most apps will improve a little more. There is one big catch that the i7 quads use almost twice as much power and thus can dump a lot of heat so make sure you scrub the cooler and fan before throwing everything back together.