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Intel Pentium 4 3066 MHz in the test: HyperThreading for the desktop

Intel Pentium 4 3066 MHz in the test: HyperThreading for the desktop

Hyper-Threading Requirements

So that Hyper-Threading can really be used without problems, a few things must be observed, which we will briefly dedicate below want.

The chipset

Already with the chipset the big question arises, which one it should be for HyperThreading. The ideology 'buy something with Intel' is (almost) always correct. Intel has done its homework and checked its own chipsets for compatibility with the new processor. Except for the i845G in A stepping, everyone was convincing. With everyone elseChipset manufacturers, on the other hand, are more than few and far between when it comes to Hyper-Threading compatibility. The following table should shed some light on the darkness.

The chipsets in comparison
Features Intel 850E i845E i845PE i845G i845GE Northbridge Features Northbridge KC82850E KC82845E KC82845PE KC82845G KC82845GE Hyper-Threading Support Yes Yes Yes No (from B-Step) Yes Integrated graphics No No No Yes Yes Memory clock 100 MHz Yes (400) Yes No Yes No 133 MHz Yes (533) Yes Yes Yes Yes 166 MHz No No Yes Yes (unofficial) Yes 200 MHz No No No No No Asynchronous memory clock Yes Yes Yes Yes Yes Memory slots (max) 4 3 3 2 2 Memory support DDR-SDRAM No Yes Yes Yes Yes (dual) -Rambus yes no no no in No AGP Support 4x Yes Yes Yes Yes Yes 8x No No No No No Southbridge Features Southbridge Intel 82801 BA 82801 DB 82801 DB 82801 DB 82801 DB Hard disk controller ATA 100 Yes Yes Yes Yes Yes ATA 133 No No No No No Number of PCI slots ( max) 6 6 6 6 6 USB ports (max) 4 6 6 6 6 USB 2.0 No Yes Yes Yes Yes Firewire No No No No No Other I/O-Link Hub Interface (266MB/s)

As already mentioned, there are almost no problems with Intel's Pentium 4 chipsets. If you have a mainboard with the chipsets mentioned above, you can count yourself lucky.

The chipsets in comparison
Features VIA P4X333 VIA P4X400 SiS 645DX SiS 648 Northbridge Features Northbridge VT8754 VT8754 645DX 648 Hyper-Threading Support No information No information No (from B -Step) No (from B-Step) Integrated graphics No No No No Memory clock 100 MHz Yes (400) Yes Yes Yes 133 MHz Yes (533) Yes Yes Yes 166 MHz Yes Yes Yes Yes 200 MHz No Yes (unofficial) No Yes (unofficial) Asynchronous memory clock Yes Yes Yes Yes Memory slots (max) 3 3 3 3 Memory support DDR-SDRAM Yes Yes Yes Yes (dual) -Rambus No No No No AGP support 4x Yes Yes Yes Yes 8x No Yes No Yes Southbridge Features Southbridge VT8235 VT8235 SiS 961B SiS 963 Hard disk controller ATA 100 Yes Yes Yes Yes ATA 133 Yes Yes Yes Yes Number of PCI slots (max) 5 5 6 6 USB ports (max) 6 6 6 6 USB 2.0 Yes Yes No Yes Firewire No No No Yes Other I/O-Link V-Link (533MB/s) V-Link (533MB/s) MuTIOL (533MB/s) MuTIOL (1GB/s)

With The chipset competition looks bleak at first. So far, no manufacturer has guaranteed the operation of Hyper-Threading. While VIA has not yet given any information, SiS only uses Hyper-Threading for the revised versions of their chipsets in B-Step. So it is up to the mainboard manufacturers to classify their mainboards as HT-suitable or unsuitable. Without the appropriate BIOS, nothing works anyway. With what we alreadywould be the next prerequisite for a successful Hyper-Threading operation.

On the next page: Das Bios