Overclock.net › Forums › Cooling › Phase Change › Challenge: Matching power consumption of 2600k/2700k @5ghz with a 3770k on phase change.
New Posts  All Forums:Forum Nav:

Challenge: Matching power consumption of 2600k/2700k @5ghz with a 3770k on phase change.

post #1 of 26
5/21/12 at 5:49pm
Thread Starter 
Since heat output and performance is a bust with ivybridge, many who were holding out for ivybridge to upgrade have been considering settling on a cheaper sandybridge for cooler running. With phase change being what's needed to push past matching sandybridge, this led me to wonder, how far could ivybridge be overclocked while matching the power consumption of sandybridge?
ie. Instead of a 4.5ghz ivy on air roughly matching a 5hz sandy on performance with fewer watts, a faster ivy running at the same watts.

From this bit-tech review: http://www.bit-tech.net/hardware/2012/04/23/intel-core-i7-3770k-review/8, there's at least a ~69+ watt margin(though they're clocked @ 4.8) to stuff phase change cooler and higher clocks.

Can phase change + higher clocks be stuffed inside 69 watts, and how much higher mhz?

edit: fixed the borked url, and 69 watts.
Edited by keiths - 5/21/12 at 8:20pm
Reply
Reply
post #2 of 26
5/21/12 at 6:28pm
No idea but I can build a cascade to handle almost anything at sub -100c loaded...
My System
(15 items)
  		  
CPUMotherboardGraphicsGraphics
i5 2500k Biostar TZ77XE4 6950 6950 
RAMHard DriveCoolingOS
8gb - DDR3 main: 120gb SSD 830 + 3 1tb drives Air Win7 
MonitorPowerCase
3 x DELL ST242OL  OCZ 900W Lian-Li Custom 
View all
  hide details  
Reply
My System
(15 items)
  		  
CPUMotherboardGraphicsGraphics
i5 2500k Biostar TZ77XE4 6950 6950 
RAMHard DriveCoolingOS
8gb - DDR3 main: 120gb SSD 830 + 3 1tb drives Air Win7 
MonitorPowerCase
3 x DELL ST242OL  OCZ 900W Lian-Li Custom 
View all
  hide details  
Reply
post #3 of 26
5/21/12 at 7:16pm
  • NoL
  • Extreme Cooler
Sdumper..
I think he asking if a phase unit can be built that consumes less than 46W.

The answer there? No.
No way not even close.

VPC is not for "power efficiency". I can certainly build a unit thats "low power" but even under 200W would be pushing it.
Reply
Reply
post #4 of 26
5/21/12 at 8:36pm
Thread Starter 
Perhaps peltier/TEC?
Reply
Reply
post #5 of 26
5/21/12 at 11:19pm
  • NoL
  • Extreme Cooler
Nope still no.
For 75W you can barely run a water pump and radiator fans.

If you want high efficiency power consumption systems, you buy ultra low voltage Xeon processors, and you go into the server market.

Power consumption just isn't what overclocking is for.
Reply
Reply
post #6 of 26
5/23/12 at 4:57am
A 2500k at 5Ghz is pushing at least 230-240w of heat and phase units generally consume on a 1:1 ratio so you'll be looking at 220w+ power consumption for the phase unit alone.

Power consumption has never been a phase units strong point...
Reply
Reply
post #7 of 26
5/23/12 at 2:09pm
  • NoL
  • Extreme Cooler
Well, the only time phase looks power friendly is normally compared to TEC's
Reply
Reply
post #8 of 26
5/26/12 at 6:37am
Thread Starter 
OK, so I need to revise the challenge. Regardless that phase change doesn't lend itself to power efficiency, the aim would be to achieve the lowest power usage for phase change while enough cooling to push ivy past sandy@5ghz, enough to make doing phase worth while, like 6ghz.
Reply
Reply
post #9 of 26
5/27/12 at 2:04am
  • NoL
  • Extreme Cooler
Again you won't find that either most likely. biggrin.gif

There is little to no way to come up with an actual "number" that could be used. Many different chips will require many different things to get to 6ghz, if they get there, or will require different temperatures, OR different people will have different requirements for "what is better or "worth-while".

You can't really expect the phase producer to be trying to do those things, that's user-defined.

Users tell me how much cooling they want or need. How many watts of load, at what temperature. And I build them a machine to do just that.
Reply
Reply
post #10 of 26
5/27/12 at 2:53am
Thread Starter 
Yes, the focus will be a little mush from variation, but a target none the less, and I've specified a target, ivy@6ghz with as low wattage as possible. Other people's varying ideas of what they want isn't relevant, this isn't about coming up with something for a phase producer to maximize a market to sell to.
Reply
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Phase Change
Overclock.net › Forums › Cooling › Phase Change › Challenge: Matching power consumption of 2600k/2700k @5ghz with a 3770k on phase change.