I recently purchased an Asus K52F-BBR5 notebook. It's a basic laptop with an Intel P6100 CPU and Mobile Intel® HM55 Express Chipset.

It came with 3GB of DDR3 SODIMM memory and I'd like to expand it to 8GB.

I'm a little confused by DDR3 nomenclature and not up to date on my knowledge of chipsets.

I'd like to make a good choice when selecting memory for it. Crucial's database suggests using either a PC3-8500 with CAS 7 or a PC3-10600 with a CAS of 9. Is the 8500 better because of it's CAS 7 or will my chipset run the memory async at a higher speed and get better performance?

Which would be a better choice for my chipset and CPU? Price difference is negligble.