This is just the bracket for exhaust not the backplate as the OP errored in posting. And I agree though, my EVGA 260 216 had a backplate yet my GTX 470 doesn't.
FREE* High Flow Bracket for all Registered EVGA GTX 470 and 480s!
Can somebody explain to me how these backplates work to reduce temperature? Wouldn't the bare PCB of the Fermi cards have completely unrestricted airflow while the backplates actually block some of that?
These brackets probably won't lower your temperature because the fan will end up running slower to get the same end result temperature.
That's going by the reports of people who modified their stock bracket to allow more air flow out.
Using a fixed fan speed for before and after would show that difference though.
Sorry but your wrong...
Why? Just take your current bracket off, dremel the whole finned area out, creating a larger exhaust than the one you are sending $5 off for. Not to mention its a 15 minute fix as opposed waiting for the mail.