^Palit is a BIG manufacturer of graphics cards and they periodically revise PCBs of all popular models. This is just Palit doing a routine refresh of their line up, which they are known to do frequently.
Check out the previous review from the same website of the Palit GTX 560 Ti Sonic:
Palit GeForce GTX 560 Ti Sonic review
compare that with this card:
Palit GeForce GTX 560 Ti Twin light LE review
You will observe that:
1) The PCB design is mostly the same
2) The Cooler design is vastly different
3) Heatpipe cooling on the Twin light edition means the GPU can clock higher, while the Sonic card has closer contact of the heatsink with the memory chips. Thus, the memory clocks higher in the Sonic version (see the results of both reviews).
Effectively this card is just a revised version of the Sonic edition. It's no big deal, and Palit isn't making any significant loss by retrofitting an already existing card with a different cooler.
As for comparisons with MSI, well, to each his own