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More details on Prescott processors and the Grantsdale family

Japanese PC Watch posted more information on Intel´s new desktop processors.

As you know, Prescott´s crystal size will make 109.1mm² instead of Northwood´s 131.4mm² due to 90nm process instead of the 0.13µm technology. This time the company won´t have to change the wafer size like it had to do while transiting to 0.13µm process (from 200mm to 300mm wafers). Prescott clock speeds will start from 3.4GHz to reach 4GHz in 2004. According to provisional estimations, Tejas chips will be launched in Q4 2004 with 4.4GHz+ clock speeds. By that time Prescott might reach 4.0-4.2GHz.

As for the Grantsdale solutions expected in Q2 2004 with DDR2-400/533 and DDR333/400 support, the most powerful discrete Grantsdale-P would likely support DDR2 only, while integrated Grantsdale-G will support both DDR2, and DDR. Of course, the market will se the mainstream Prescotts as well Grantsdale-GV and Grantsdale-GL without 533MHz FSB support. These are expected closer to Q3 2004. Grantsdale-GV won´t support external graphics despite the PCI Express x16 slot (unlike AGP, PCI Express x16 is not dedicated to graphics only). Grantsdale-GL won´t support Hyper-Threading and PCI Express x16, just PCI Express x1. By the way, the new Northway Gigabit Ethernet (GbE) chip will work with PCI Express x1. According to provisional information, the whole Grantsdale family will support up to 4Gb of memory.

Below is the summary for Grantsdale-P/G chipsets:

Grantsdale Northbridge

  • 533/800MHz FSB (up to 1066MHz when Tejas is released)
  • LGA775 package
  • PCI Express x16
  • Dual-channel DDR2-400/533 and DDR333/400
  • Integrated Intel Extreme Graphics 3 (DirectX9, Pixel Shader 2.0) in the "G" model

Southbridge ICH6/ICH6R

  • 4 x PCI Express x1 ports
  • Inegrated Azalia sound (24bit/192kHz)
  • 1 x PATA100 channel
  • 4 x SATA150 ports
  • 8 x USB 2.0 ports
  • 6 x PCI slots


Bridge Type Grantsdale-P Grantsdale-G Grantsdale-GV Grantsdale-GL
MCH/
GMCH
FSB
1066MHz - (up to Tejas) - (up to Tejas) - (up to Tejas) -
800MHz + + + -
533MHz + + + +
400MHz - - - -
Throughput 6.4Gb/s 6.4Gb/s 6.4Gb/s 4.2Gb/s
Package
LGA775 + + + +
mPGA478
Memory
DDR2-533 + (FSB 800) + (FSB 800) + (FSB 800)
DDR2-400 + (FSB 800) + (FSB 800) + (FSB 800)
DDR400 + (FSB 800) + (FSB 800) + (FSB 800) + (FSB 533)
DDR333 + (FSB 533/800) + (FSB 533/800) + (FSB 533/800) + (FSB 533)
DDR266
2-channel mode + + + +
1-channel mode + + ? + ? + ?
Slot 4 DIMM 4 DIMM 4 DIMM 2 DIMM
Throughput 8.5Gb/s 8.5Gb/s 8.5Gb/s 6.4Gb/s
Max. memory 4Gb 4Gb 4Gb 2Gb
ECC
Hyper
Threading
+ + +
AGP
PCI Express x16 + + +
PCI Express x1 + + + +
Int. graphics Intel Extreme Graphics 3 Intel Extreme Graphics 3 Intel Extreme Graphics 3
CSA
Release Q2 2004 Q2 2004 Q3 2004 Q3 2004
ICH ICH ICH6 / ICH6R ICH6 / ICH6R ICH6 / ICH6R ICH6 / ICH6R
USB 2.0 8 8 8 8
ATA66/100 1 1 1 1
Serial ATA 150 4 4 4 4

Source: PC Watch

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