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Bulldozer is "Clustered Mutithreading". HyperThreading from Intel is SMT (Simultaneous multithreading) Zen I believe will be SMT not CMT.
by the_ancient 11y ago
Bulldozer is "Clustered Mutithreading". HyperThreading from Intel is SMT (Simultaneous multithreading)
Zen I believe will be SMT not CMT.
- gnoway 11y agoTo expand on this - the Bulldozer FPU is supposed to be SMT, but the integer cores are single threaded; two integer cores share an FPU, making a 'module'. This is apparently the same scheme that DEC used with one of the Alphas. It's interesting that as respected as (I think) the Alpha was, both Intel (Netburst) and AMD (CMT) tried to adapt aspects of the design and it seems that in both cases it hurt their respective businesses.
- rodgerd 11y agoThere was a similar distinction between the SPARC T1/T2s and the UltraSPARCs.