HP probook 6460b or HP probook 645 G1?

I have HP Probook 4330s (i3 2310m, 8gb RAM, SSD). The best thing I like about this computer that it stays cool, no matter how much I use, or how I use. Pretty strong construction as well.
I am thinking of upgrading to either HP probook 6460b (AMD A8-4500m 1.9Ghz) or HP probook 645 G1 (AMD A8-4500m 1.9Ghz). Both have the same processor, but the newer one (645 G1) is thinner. Any experience of which one stays cooler in the base? The newer model (Probook 645 G1) is thinner, so can get warmer? But maybe a better design and heatsink also? Any other known problems with these computers?
Also, many users have reported upgrades to cpu in several probook computers (at different forum threads), but I could not find any information about a possible cpu upgrade to a probook with AMD processor. It can’t be done (cpu soldered) ?

Hi
If your going to use the default radeon driver then look at installing my systemd-radeon-power_profile package to keep things cool. Else if the fglrx driver it should be fine.

I had a 4330s and 4440s both with just the intel B series dual core celeron they rocked along with 8GB of ram and a SSD :wink:

I currently have a ProBook 455 G1 with a AMD A4-5150M (2.7GHz, boost to 3.3GHz) with HD8350G GPU 8GB @1600MHz, Crucial CT120M500 SSD it’s only a dual core, but runs pretty cool even under load, only the radeon driver at present. I think I would go with the 645 G1 as I think hardware support is better, maybe if you post the specs for both, esp wireless.