Does Windows 2000 Professional Support HT?

batmang

Diamond Member
Jul 16, 2003
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ive read around that windows 2000 supports hyper threading, but then ive seen articles that said it did no support it. Im wondering if you guys know for sure if it does support hyper threading, cause i cant stand windows xp, id much rather run windows 2000, any of you guys know?
 

Haden

Senior member
Nov 21, 2001
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Lord Evermore
Win2k will work with it, but doesn't fully support it. Win2k and WinXP both support dual-processing (in the Pro versions), however Win2k sees the two logical processors of HT as two physical CPUs, and will therefore stop with those two. If you have a dual-processor motherboard, Win2k will think there are four CPUs installed. Depending on how the BIOS addresses them, it might use the two real physical CPUs and ignore the virtual CPUs of HT, or it might use one physical CPU and one virtual CPU, and ignore the other CPU entirely.
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WarpSpeed

Member
Feb 13, 2000
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Win2K supports hyperthreading enough to be very useful when performing multiple CPU-intensive tasks similtaneously. It might actually slow your work with gaming and single, FPU-intensive tasks. Those are my personal findings. Specifically, video benchmarks and SuperPi are slower on my computer with HT enabled, but multiple instances of video encoding run significantly faster. So it depends on what you do with your computer.
 

bsobel

Moderator Emeritus<br>Elite Member
Dec 9, 2001
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Originally posted by: SpeedFreak03
Originally posted by: bsobel
Originally posted by: bacillus
only xp presently fully supports HT!

Correction, only XP and above (2003 server)
Bill

Correction, also Linux ;)

Actually, not all versions (although the new kernels do). Do you recall which version it was added?
Bill
 

SpeedFreak03

Golden Member
Apr 13, 2003
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Originally posted by: bsobel
Originally posted by: SpeedFreak03
Originally posted by: bsobel
Originally posted by: bacillus
only xp presently fully supports HT!

Correction, only XP and above (2003 server)
Bill

Correction, also Linux ;)

Actually, not all versions (although the new kernels do). Do you recall which version it was added?
Bill

Yeah good point lol. Im not sure but was it like 2.2 or 2.3?

EDIT: Googled this: Intel. Scroll down to the linux section, that should help a little.
 

Ogo

Member
Sep 8, 2000
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In my short experience using Win2000 and HT, I found that games and other applications requiring lots of cpu power suffered a ~15-25% loss in performance. After realizing that, I switched to XP.