Everyone loves to see CPU-Z screen captures, so here they are for both processors.
The AMD Athlon 64 X2 5050e is code named Brisbane, but for some reason CPU-Z 1.49 doesn’t pick up on that. Everything else is correctly displayed though. Notice that the processor has just 1MB of L2 Cache and no L3 Cache. Notice that this 45W TDP part uses just 1.20V for the CPU core voltage.
The AMD Athlon X2 7750 is code named Kuma and this is displayed by CPU-Z 1.49 with no problems at all. Notice that it has 3MB of shared L3 Cache, which is something the Brisbane processors don’t have. The CPU voltage was observed at 1.320V.
AMD Athlon X2 7750 Features: