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To: greg s who wrote (169502)8/16/2002 12:59:40 PM
From: The Duke of URLĀ©  Read Replies (1) | Respond to of 186894
 
Intel reveals hypethreading schedules

All 533MHz Pentium 4s will support it

By Mike Magee: Friday 16 August 2002, 14:30

WE HAVE ALREADY noted that Intel will introduce hyperthreading to its desktop platform with the introduction of a 3.06GHz Pentium 4 in the fourth quarter.
But documents we have seen show that when Intel launches that processor, all chipsets that use the 533MHz front side bus will support the technology.

Hyperthreading will allow Pentium 4s microprocessors to execute instruction threads in parallel, and no motherboard tracing route changes will be needed to make it work, it appears.

Intel claims that it will give immediate performance on most existing applications, and a much bigger boost for applications designed to support multi-threading.

And Intel is already ready to sample 2.53GHz and 2.8GHz CPUs using the technology before the launch, round about now. These will allow its partners to enable BIOSes. By the beginning of September, Intel will sample 3.06GHz CPUs, making more samples available during September, and readying for the launch of the 3.06GHz part, perhaps as early as November.

What about the chipsets then? The A-stepping of the 845G has no HT support. This particular chipset will actively disable HT at boot time, and the 845GL remains a 400MHz FSB, so that won't work either.

Intel will produce a B-step 845G chipset in September which will support hyperthreading. Springdale G/P, and the 845GV, 845GE and 845PE will also support HT by default. Existing 850E and 845E already support hyperthreading by default, with just BIOS enabling needed.

PC manufacturers will need to update the BIOSes for all of those chipsets that do currently support hyperthreading.

Intel will phase support for the different chipsets that are available for the Pentium 4 in different stages, includingthe 845PE/GE/ and 845GV chipsets.

If Intel's plans are this far advanced, it suggests that soon we'll be seeing some performance figures for hyperthreading, perhaps as early as the Developer Forum which starts on the 9th of September. µ

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