Having upgraded my laptop's processor from an i3-2350m to an i5-2430m it took a lot more than you'd be willing to put forth. You have to find one that:
- fits the socket
- is compatible with the chipset
- works with the motherboard (I didn't find this, I took the risk and it worked)
- does not surpass the thermal threshold of the laptop, meaning it shouldn't cause more heat then the laptop can handle
Then you must:
- know how to take apart and put your laptop back together without breaking it
- have an organized approach when going to replace it
- buy thermal paste
- know how to apply and how much to apply of said thermal paste
The socket seems to be FS1, but not 100% sure. This one MAY work for you, if it does it would be an excellent upgrade. It has a base of 2.3GHz and boost of 3.2GHz, should preform similarly to my i5 in single core applications and better in multi-core applications. An A10-5750M would be the best option if it works, only $140 on eBay.
http/www.ebay.com/itm/NEW-AM4600DEC44HJ-AMD-A10-4600M-2300MHZ-SOCKET-FS1-MOBILE-CPU-/151116361988?pt=CPUs&hash=item232f3cb104
Abyssalx :
Do you really need to upgrade it? I have this laptop and I'm completely fine with the processor. Really, what are you doing that it's too slow for? And you can always Overclock it easily. Check my review thread for more information.
If overclocking is possible it won't be easy, it will result in a quicker death of the CPU and may cause overheating issues. A mobile CPU shouldn't be overclocked, ESPECIALLY if it's in an HP that may suffer form cooling issues.