Llano isn't about max speed its the max speed per watt usage.
the fastest llano will have 100 watt tdp.
and no other system can beat the llano on speed per watt not an nvidia gpu and not an intel cpu.
yes sure the cpu part of the software need to support multicore .
if you build an system with 100 watt tdp with an intel cpu and an nvidia gpu you lose against Llano.
but if you are happy with the speed of the 6550 then you are right there.