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What CPU do you have?
You'll need some fast ram to keep up with it though.
I have an i7 3820 which has hit 5ghz on air ^.^
Runs HOT though... into the 80'c under load... that's with a pair of 200cfm delta fans in push/pull
Underwater 5ghz is easily reachable for most (all?) 3820's though!
Do you think a Intel Core i7-3970X 3.50GHz (Sandybridge-E) Socket LGA2011 Processor would be a good upgrade choice ?
Future proof ?
No
If you want a hex core go for an i7 3930k which can be had for just over half the price of an i7 3970x. When both CPUs are overclocked the performance is almost exactly the same.
So would you say the i7 3930k is the fastest/best Intel CPU to go for ?