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About HT

Posted By: eXtreme Gammon
Date: Wednesday, 2 December 2009, at 1:45 p.m.

In Response To: interesting... (dc-ohio)

Hyperthreading looks like an extra core but it is not. The processor use the asme core for 2 thread and use the 4 pipelines to interleave both threads.

So typicaly you gain about 1.3 over a non HT core. for the core i7 it means you get the equivalent of 4x1.3 so 5.2 cores.

The core i7 is also 10% faster on a single thread (tick for tick) than the Quad.

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