Firstly, the i7-3770 has 4 cores, not 6 as you earlier claimed, which is already a huge flaw in your argument.
Secondly, the Xeon E5-1650v2 has 4 memory channels with DDR3-1866 support, therefore it is able to achieve a maximum memory bandwidth of 59.7 GB/s as opposed to 25.6 GB/s on the...