M620 blade with 10gb nic relocated to M1000e with passthrough

Hi,

I have a m1000e populated with M610s that uses gigabit passthrough modules. 

I have another m1000e populated with M620s that connect to MXL40s.

If i were to transfer one of the M620s to the m1000e with the passthrough modules would the NICs on the blade come up at 1gbps or just error out?

The 620's have more ram and CPU power which i need more than the NIC speed right now.