That is a laptop MB. The CPU might not be removable.
I did a Google search and this is what came up:http://browse.geekbench.ca/geekbench2/view/199703
It indicates the following:
Model Hewlett-Packard HP Pavilion dv7 Notebook PC Motherboard Quanta 3638Processor AMD Turion II Dual-Core Mobile M520
Processor ID AuthenticAMD Family 16 Model 6 Stepping 2Processor Frequency 2.30 GHz
Cores 1 Threads 2
L1 Instruction Cache 64.0 KB L1 Data Cache 64.0 KB
L2 Cache 512 KB L3 Cache 0.00 B
Whether that is faster than your current CPU I don't know.
Still no Info if the CPU is user replaceable.