
Originally Posted by
Hornet331
More cores don't yield you more ST performance, same goes for ISA extensions it don't yields you more performance in current apps. It was the same issue that plagued all P4s... SSE2 performance wsn't that bad. But hardly any apps used it, it took years till people adoped it. Today its still the case, look how many apps use SSE4.x and how many can make use of it... The only thing that would yield more performance if IPC goes down is clock speed. And the more IPC you loose the more clock you need. Lets say haswell looses 15% IPC compared to IB, now it needs at least 15% clock to only reach the speed of IB, then you wan't also a performance increase ~10%... so you need 25% more clock... considering that IB probably will be close to the 4ghz mark, you need a 5ghz haswell to beat a 4ghz IB... nope same situation as we see now with BD... powerconsumption will be trough the roof compared to its predecessor for only a marginal increase in performance.
PPl tell me now for nearly a decade consumer market is changing.. yet performance is still determined by ST.. its the same thing with gpu computing... (just that isn't that long). Its a whole other picture in the professional market, but thats not what we discuss right now.
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