What is the difference between the TLA5000 series and the TLA5000B series?

What is the difference between the TLA5000 series and the TLA5000B series?

The acquisition memory for the TLA5000B series has a standard depth of 2MB with options to increase it to 8MB and 32MB. The TLA5000 series had a standard depth of 512k with options to increase it to 2MB and 8MB. There is now a Powerflex option of the TLA5000 series that will increase the memory to 32MB.

The embedded PC controller in the TLA500B series has a 2.93GHz Celeron, 512MB of DDR2 and an 80GB SATAHDD. The TLA5000 series has 2.0GHz Celeron, 512MB of DDR and an 80GB ATAHDD.