The SAPPHIRE Vapor-X has the highest clocks, The best cooling solution and with the exception of the Sapphire FleX the best connectivity and it's only $10 more than the msi twin frozr.
True MSI has the afterburner tweak utility but, Sapphire has the Trixx tweak utility.
Sapphire is also well known to be very over clockable.
Some quotes from the Newegg reviews:
"1160 / 1450 stock voltage. hardly gets over 60*C under max load with default fan settings"
"OC's like a champion. 1150/1350 on stock voltage currently"
"Easy overclock. Sitting at 1150 Core and 1425 memory as a quick test and it is stable at stock voltage"
"Cool, Quiet, Fast, Overclocks easily (I love that it is literally DESIGNED to overclock!)"
"This 7950 OC will blow away any game on the market right now, no problem"
And keep in mind that just like with MSI afterburner with the Trixx tweak utility you can up the voltage to OC even more!
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