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Skylake 'Speed Shift' coming to Windows 10 in November

Dave2150

Dave2150

Dave2150

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Quite an interesting article about it here: http://anandtech.com/show/9751/examining-intel-skylake-speed-shift-more-responsive-processors

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In short, Skylake will be able to increase clock rates to full speed faster than previous generations. This will mean many tasks will be completed faster, especially those that only require 100% CPU for a short period.

Examples on the performance gains:

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Of course those who disable all C states and run their CPU at max frequency 24/7 will see no benefit from this, though those of us who like having a power efficient system that doesn't produce extra heat in the summer will benefit :)
 
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Orangey said:
They're really scraping the barrel now.
Click to expand...

At least they are innovating still - 'Speed Shift' is absolutely great for mobile use, and still decent for desktop use.

Who'd be unhappy with a small performance increase? I'm certainly not, roll on the november Windows 10 patch :)
 
It's great to see improvements like this as technology evolves, I never really see it as a reason to upgrade though.

As power becomes less of an issue to society as tech industries like solar and batteries explode in a modern renascence, things like this seem less and less needed but we are still decades away from the fruits of these developments I guess.
 
Dave2150 said:
At least they are innovating still - 'Speed Shift' is absolutely great for mobile use, and still decent for desktop use.

Who'd be unhappy with a small performance increase? I'm certainly not, roll on the november Windows 10 patch :)
Click to expand...

You really seem to be right up Intel's arse, and it's a bit embarrassing.
 
I would not get too exited about the first two benchmarks which respectively show a circa 2.7% and 2.4% improvement. The last one equates to a circa 16.2% improvement. As alluded to this will mostly matter in the mobile sphere where a quick boost of speed (and power required to support it) will mean longer battery life without sacrificing much performance at stock speeds.

Should not matter one jot to people buying a 6660k or 6700k because if you want to run Skylake at stock with C states enabled then these are not the CPU's for you.....
 
So they are increasing the amount they boost and calling it "Speed Shift"

Orangey said:
They're really scraping the barrel now.
Click to expand...

+1 but watch people get sucked in by it, "oh Intel has this new thing called Speed Shift and it makes your computer a million times faster" Just don't overclock the CPU cuz then Speed Shift has nowhere to go
 
I'm not sure I see the point in this as when I have CPUZ running even my old-ass i5 760 changes up and down multiplier rapidly depending on load and I've never really thought "Damn I wish my chip changed multiplier quicker". I can't see how this is a performance thing to be excited about? If anything it could be considered an efficiency bonus for mobile chips if over the course of a 6h on time it spends two minutes less at full pelt...

Unless Speed Shift changes the base clock not the multiplier.
 
AS you say, this is 100% about power efficiency. Early attempts, more so by Intel, were about reducing clock speed of desktop chips and running as low voltage under load as possible. That sucks as a plan and almost everyone abandoned that completely. It's all about hurry up and power down. For all the little processes it's quicker and uses less power to turn up to max clock, do your work and shut down. Often a chip will power up for almost no work at all, maybe only 15ms of work, so if you can clock up and down in 1ms instead of 5ms you take time powered on from 25ms to 17ms. It also means you can power up and down during prolonged load more efficiently. You might have a constant heavy cpu load but during waits of 10ms here and there you can power the chip down and back up without any reduction in performance to the program.

Basically the quicker the reaction time to loads the more and more aggressive you can be with power saving plans without effecting the user performance. It's entirely none interesting and won't be any visible performance difference to anyone even in mobile. It might give you another 10 mins battery life on some device... honestly who cares.
 
If we had way better IPC with each generation and not just dribs and drabs we would already be crusing along at 800mhz all the time anyway. ;)
 
Intel are chasing ARM power efficiency.

This forum is maybe the exception, but from servers to mobile phones power efficiency is becoming all important.
 
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