The Channel logo


By | Tony Smith 20th July 2005 10:08

Intel preps Pentium D core update

EM64T, single-core operation bugs fixed?

Intel is to upgrade the cores incorporated into its 'Smithfield' dual-core processors in October, The Register has learned.

The chip maker will offer samples of the updated Pentium Extreme Edition 840 chip and the Pentium D 820, 830 and 840 processors on 5 August, Intel documents reveal, ahead of commercial product availability on 21 October.

The update will see the introduction of a new core, B-0 - the current 'stepping' is A-0 - which will be accompanied by a change in CPUID code from F44 to F47.

The update notification doesn't detail the improvements the B-0 core will bring over the A-0 core, but Intel's most recent Pentium D specification update lists 52 bugs in the A-0 core, of which just seven are marked for a possible fix in a future core stepping. Some or all of these will undoubtedly be resolved by the B-0 core.

Planned fixes include preventing crashes when programmers attempt to switch the dual-core chip into what appears to the operating system to be a single-core part. Other planned fixes centre on the CPUs' support for Intel's EM64T 64-bit addressing system.

Intel isn't expected to extend the PD or PEE chip lines until early next year when it debuts the 65nm incarnations of the chips, together codenamed 'Presler'. Presler will also add support for Intel's Virtualisation Technology, it is believed. ®

Related stories

Intel overcomes 'weak' line-up during Q2
Intel slaps 'wide load' tag on new Itanium
Intel readies mainstream discrete dual-core chipset
Intel and Dell thrilled to join the dual-core server chip era
Intel to add VT to P4 in Q4
AMD to drive dual-core downmarket
Intel ships 64-bit, 1MB L2 Pentium 4s
Intel preps 'low-end dual-core chipset'

alert Send corrections


Frank Jennings

What do you do? Use manual typwriters or live in a Scottish croft? Our man advises
A rusty petrol pump at an abandoned gas station. Pic by Silvia B. Jakiello via shutterstock

Trevor Pott

Among other things, Active Directory needs an overhaul
Baby looks taken aback/shocked/affronted. Photo by Shutterstock

Kat Hall

Plans for 2 million FTTP connections in next four years 'not enough'
Microsoft CEO Satya Nadella


Suit-and-tie-wearing man tries to meditate, take deep breaths in faux yoga pose. Photo by Shutterstock
Emotional intelligence, not tech skills, is the way to woo suits
League of gentlemen poster - Tubbs and Edward at the local shop. Copyright BBC
One reselling man tells his tale of woe