@wingman04 , The processor being 64 Bit has nothing to do with how much data it can handle at once.
Nothing to do.
There are DSP's which are 16 Bit and access much more data than an Intel CPU.
Again, CPU's has muli layer memory hierarchy.
As closer we get to the CPU the faster and smaller the memory is.
The problem, since it gets smaller (Register smaller than L1, smaller than L2, smaller than L3 which is smaller than memory).
Yet if the data being processed is large while the operation on the data is simple (Which the CPU can handle using its full power) we're bottlenecked by the main memory system.
This is why faster DDR4 are showing gains in SkyLake.
Yet since the speed can't be multiplied by 2 it would be easier to double the number of channels.
Again, whether the CPU is 64 Bit or 32 Bit doesn't have any affect on how the data throughput.
It only means how are the memory address is.