How to tell if an AMD Video Card is Reference?

[naota]

I have 2 XFX 7950 Black edition Double Dissipation cards in my other gaming computer. I am thinking about water cooling them when I game and mine since they both run hot. How can I tell if the cards are Reference Design or not without tearing the heat sinks off?

 

[Spazturtle]

Both XFX Radeon HD 7950 Double Dissipation Edition 3GB GDDR5 (FX-795A-TDKC) and XFX Radeon HD 7950 Double Dissipation Edition 3GB GDDR5 (FX-795A-TDJC) are non reference, so full blocks won't fit.

 

[naota]

The cards I have are FX-795A-TDKC and the FX-795A-TDBC. So it looks like I will only be able to get 1 full block and the other would just be a simple gpu water block then.