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Hexacore Xeon questions: Hyperthreading and Enhanced Turbo Boost

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September 13, 2010 7:19:08 PM

So I get to work this morning and there's a brand new workstation sitting next to my desk, still in the box.

It has a Xeon 5680 6-core CPU, and I'm used to AMD Opterons.

I'm wondering if there will be any beneift (or drawback) to turning on hyperthreading and/or the enhanced turbo boost mode. Any links to benchmarks would be welcome. The software I use the most is Autodesk Inventor 2010 and Mastercam X4.
a b à CPUs
September 13, 2010 10:51:17 PM

Sheesh - my company makes me live with a P4 :p . Don't complain too loudly or I'll come steal your new desktop :D .

Anyway, I'd go to both sofware companies websites and see if you can find out the answers, or else spend a few minutes experimenting and see if either HT or turbo increases your speed.
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a b à CPUs
September 14, 2010 5:02:19 AM

its extra performance - why not?

hyperthreading rarely decreases performance
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a b à CPUs
September 14, 2010 5:09:40 AM

Both hyperthreading and turbo mode increase performance in the vast majority of cases - there's no reason to leave them off.
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September 14, 2010 12:50:19 PM

Thanks for the repsonses. The default settings in BIOS were HT off and Turbo-Boost on in standard mode.

I turned HT on and left left Turbo in standard mode.

Does anyone know if the "enhanced" Turbo mode is worth using?
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a b à CPUs
September 15, 2010 1:24:38 AM

Turbo has multiple settings? Typically, it's either off or on, so if there is an additional setting ("Enhanced"), it's probably specific to the motherboard. You could always turn it on and see what happens.
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September 15, 2010 12:26:06 PM

A little further research:
"The Z800 has two levels of turbo mode, the standard level supplied by Intel, and an enhanced level, developed in-house, which delivers up to 5% additional performance."
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a b à CPUs
September 16, 2010 2:09:24 AM

Personally, I would try it, ideally with something like CPU-Z running, and see what the CPU does in both standard and advanced mode. It has to be a difference in clock speeds, so you should be able to see what it's doing.
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September 23, 2010 12:23:56 AM

Best answer selected by soo-nah-mee.
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a b à CPUs
September 23, 2010 12:24:38 AM

This topic has been closed by Mousemonkey
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