the tdx will be easyer to set up. and be much tidyer. but the rbx offers slightly more performance, but at the cost of having 2 outputs on the block. so realy it depends which 1 would work better with your setup. just googled and found this
THe TDX is the way to go.... the RDX is a pain with the exttra barbs, and cooling wise they are with in a couple of degrees of each other. Oh and dont bother putting in different plates it only increases the chance of leaks as I found out, the hard way a number of years ago.
