By: Wouter Tinus (wouter.tinus.delete@this.gmail.com), October 3, 2015 11:19 am
Room: Moderated Discussions
juanrga (nospam.delete@this.juanrga.com) on October 3, 2015 4:17 am wrote:
> Haswell/Broadwell retire 4 fused uops, but 8 unfused uops. Unfused uops are more close to RISC ops
> in other archs. Therefore I prefer to consider Haswell/Bradwell 8-wide, specially for comparisons.
>
> > Skylake introduced the ability to retire 4 µops per thread.
So why would you call Skylake 8-wide then? If we follow your reasoning it would be 16-wide.
> Haswell/Broadwell retire 4 fused uops, but 8 unfused uops. Unfused uops are more close to RISC ops
> in other archs. Therefore I prefer to consider Haswell/Bradwell 8-wide, specially for comparisons.
>
> > Skylake introduced the ability to retire 4 µops per thread.
So why would you call Skylake 8-wide then? If we follow your reasoning it would be 16-wide.
