Current network hashrate is equivalent of 1189529.29 Petaflops.
That's 60 000 of your Blue Genie computers.
You do the math newbie
That's 60 000 of your Blue Genie computers.
You do the math newbie
The actual hashing power of the BTC network is 1039.79 peta-FLOPS.
source: http://www.coindesk.com/bitcoin-network-out-muscles-top-500-supercomputers/
Using a benchmark of aprox 200 peta-FLOPS per 65MW datacenter, three such facilities could launch a 51% attack on the BTC network.
Math Done