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Turbo Boost vs. OC

Post Date: 2011-06-01
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Wahoo80 View Drop Down
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Posts: 7 		  Quote Wahoo80 Quote  Post ReplyReply bullet Topic: Turbo Boost vs. OC
    Posted: 01 Jun 2011 at 11:34am
I'm looking at SB-based CPUs. Looked aqt Intel's marketing site for Turbo Boost tech built into the i7:
 
 
This tech seems to me, a layman, to be the best of both worlds--on-demand "overclocking", but designed in by Intel engineers and not done on a bench at DS by techs trying to customize an OC to that specific CPU.
 
So, is Turbo Boost real, or hype? Could it substitute for OCing and save the heat and longevity risks? Does OCing anyway overpower or make moot the Turbo Boost features built into the CPU?
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RiceEatin2000GT View Drop Down
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Posts: 1699 		  Quote RiceEatin2000GT Quote  Post ReplyReply bullet Posted: 01 Jun 2011 at 2:43pm
turbo boost is great and does what its meant to do. The issue is its on the conservative side for instance if your program is using one core it can boost one core to the advertised 3.8ghz. 2 Cores 3 and 4 cores will be binned up less(100 mhz increments). The bin values(how much the cores get up clocked) can be adjusted in bios so in theory if you wanted to be power conservative and extend the life of your processor(people will argue this) you can overclock totally by changing the turbo values. This gets much harder compared to setting a manual voltage or even oc'ing in offset mode(so the processor is able to use speedstep) because you need to set a voltage for a ton more senarios, IE. 4 cores stressed uses what voltage? 1 core used at X speed what voltage and so on and so forth.

Edited by RiceEatin2000GT - 01 Jun 2011 at 2:44pm
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Wahoo80 View Drop Down
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Posts: 7 		  Quote Wahoo80 Quote  Post ReplyReply bullet Posted: 01 Jun 2011 at 3:41pm
After I posted I went to Tom's and a few overclocking forums and read a good bit. Seems that what you say is right on--the SB "K" CPUs with Turbo Boost are a compromise between no OC and always-on OCing. The on-board TB controller circuitry senses number of cores in use, and real-time monitors temps and votages. When needed, it turbos as many cores as it can within parameters. Not as high as true OCing, but it also powers down in idle states, saving electricity, heat stress, and possibly chip life.
 
There sems to be an open debate, still unclear as TB is so new, whether the controller has a timer built in based on heatsink characteristics, or whether it stays in boost as long as temps behave.
 
Also a lot of discussion whether the TB controller is the true way "into" the K line for traditional OCing. Perhaps a DS rep could comment.
 
I'm cheap and I'm conservative with gear. I don't have 3-4 year purchase cycles. My last PC lasted seven. I've been out of the game market a while, but there have been plenty of games my single-core could handle. On this one I want to treat it well and get a good, long life from the brains. I think I'll go TB in the config and bypass more radical OCing.
 
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ablahblah View Drop Down
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Posts: 2312 		  Quote ablahblah Quote  Post ReplyReply bullet Posted: 01 Jun 2011 at 5:22pm
Turbo substituting for overclocking? Turbo boosts current cpu speeds by bumping up the current multiplier, and is limited by the cpu's base speed (base clock * base multiplier). Actual overclocking affects the base speed via the base clock and sometimes the multiplier and typically yields speed boosts far more dramatic than turbo can achieve on its own, and turbo merely stacks on that to give a small boost over that when stability at that boosted speed is possible. Turbo's nice, but if you really want to get anywhere past typical retail performance, you put in some time to overclock it yourself.

Edited by ablahblah - 01 Jun 2011 at 5:25pm
R4D4RPR00F
Core i7 920 @ 3.9Ghz
Asus Sabertooth X58
EVGA GTX 570
Mushkin 6GB 1414Mhz
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DST4ME View Drop Down
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Posts: 36758 		  Quote DST4ME Quote  Post ReplyReply bullet Posted: 02 Jun 2011 at 1:41am
turbo takes one core to 3.9GHz, if you want all 4 cores trubo then your speed is going to be lower then 3.9Ghz, ocing oces all cores to the same speed, so they are all running the same speed, and you are limited only by heat and vcore pretty much.

Edited by DST4ME - 02 Jun 2011 at 1:41am

Nvidia Drivers----AMD Drivers
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