The mysterious blue orb reminds us of (Iron Man) Tony Stark's arc reactor embedded in his chest. MSI calls their contraption "GPU Reactor".

P1040931 MSI R7970 Lightning Review

Covers off

P1040930 MSI R7970 Lightning Review

 

This small PCB module purportedly helps overclockability with extra capacitors to increase current volume by 88% and reduce power supply noise by 13%

P1040906 MSI R7970 Lightning Review

P1040907 MSI R7970 Lightning Review

 

Backplate off 

P1040880 MSI R7970 Lightning Review

 

Heatsink off – another black heatspreader prevents the card from warping and conducts heat from the memory chips/MOSFETs which will get toasty during heavy overclocking.

P1040879 MSI R7970 Lightning Review