New Intel Processors are lower speed than olderP4?

  FatboySlim71 12:56 30 Jan 2008
Locked

I can remember reading a post on here regarding the confusion with the new Intel Processors been on paper at least slower from a GHZ point of view than the older Pentium 4, but I cannot find the post refering to it.

Could someone clarify why for example the average speed of the new range of Intel processors now is between 2-2.6 GHZ, where as a few years ago we had Pentium 4's with 3.4GHZ, on paper at least the new processors would appear from a GHZ point of view to be slower than the older 3.4GHZ Pentium 4 from a couple of years back.

  DieSse 13:17 30 Jan 2008

Clock rate is not speed of processing data.

If say, a processor at 1GHz does four times as much with data in one cycle as a different processor at 3GHz - then the 1GHz processor is actually faster.

So - the new designs are more efficient, basically.

  DieSse 13:20 30 Jan 2008

Don't forget also that dual-core and quad-core processors have 2 and 4 processors respectively, in a single package - so with the right software can be doing 2 or 4 times as much as a single one.

Also newer processor designs tend to have more cache (on the chip, very high speed) memory - which also improves data throughput.

  citadel 13:28 30 Jan 2008

a 6700 core2 duo 2.66 beats a 3g p4 by over a 1000 + in 3dmark 06. core 2 duo and quad can carry out more instructions per clock cycle + they use less power and are cooler.

  FatboySlim71 14:11 30 Jan 2008

Thanks DieSse & citadel for the excellent explanation.

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