Retail= 166 core/mem hyper-z enabled
Le=148 core/mem hyper-z not enabled (can be enabled very easily, i clocked my LE to 191/191 so no problems there)
VE= i believe is clocked the same as the LE but has dual monitor support.
Definitly the LE is the way to go for 80$, it spanks the Mx and even beats the GTS in a few areas. Sorry for my assault on the MX but all the benches ive been have compared to the GTS so it really shouldnt be compared to the Mx IMO.
oops.. yes you're right. I assumed it was a LE version of Radeon. sorry.. you have a regular version of Radeon 32mb. I heard that the Radeon 32mb LE can have its BIOS flashed so it will perform equal to a regular version of Radeon 32mb. There are lots of discussion on the flashing Radeon LE in the forums like Anandtech.com video section. There should be someone who can help you here too... but I donno about flashing.. sorry.