While there are some similarities with the Sony Cell, the differences are very significant.
The PPE of the Cell was a rather weak CPU, meant for control functions, not for computational tasks.
Here the 2 fast threads are clearly meant to execute all the tasks that cannot be parallelized, so they are very fast, according to Intel they are eight time faster than the slow threads, so the 2 fast threads concentrate 20% of the processing capability of a core, with only 80% provided by the other 64 threads.
It can be assumed that the power consumption of the 2 fast threads is much higher than that of the slow threads. It is likely that the 2 fast threads consume alone about the same power as all the other 64 threads, so they will be used at full-speed only for non-parallelizable tasks.
The second big difference was that in the Cell the communication between the PPE and the many SPEs was awkward, while here it is trivial, as all the threads of a core share the cache memories and the scratchpad memory.
The PPE of the Cell was a rather weak CPU, meant for control functions, not for computational tasks.
Here the 2 fast threads are clearly meant to execute all the tasks that cannot be parallelized, so they are very fast, according to Intel they are eight time faster than the slow threads, so the 2 fast threads concentrate 20% of the processing capability of a core, with only 80% provided by the other 64 threads.
It can be assumed that the power consumption of the 2 fast threads is much higher than that of the slow threads. It is likely that the 2 fast threads consume alone about the same power as all the other 64 threads, so they will be used at full-speed only for non-parallelizable tasks.
The second big difference was that in the Cell the communication between the PPE and the many SPEs was awkward, while here it is trivial, as all the threads of a core share the cache memories and the scratchpad memory.