Haswell Refresh vs Ivy Bridge power consumption

[tzily2]

Hi, my old ivy i3 died and this new i5 4460 just came in today.
I was wondering if anyone has any real info on the power consumption regarding the two technologies, in full load and no overclocking of course.

 

[rockie_]

Up to 84W
http://ark.intel.com/products/80817/Intel-Core-i5-4460-Processor-6M-Cache-up-to-3_40-GHz

 

[tzily2]

i'm asking about power consumption rookie, not TDP

 

[AdmiralDonut]

Up to 84W
http://ark.intel.com/products/80817/Intel-Core-i5-4460-Processor-6M-Cache-up-to-3_40-GHz

That's the TDP, not it's power consumption. Consumption on idle for the i5 4460 should be around 55-61 watts depending on the chip, and around 156 watts under full load. It being a non-K series CPU means that there will be no overclocking anyway, so that 156W maximum should account for turbo speeds as well.


EDIT: I shall correct myself. The i5 4460 consumes just 44W on average at idle, and 122w at full load running Linpack, as detailed here:

http://www.xbitlabs.com/articles/cpu/display/intel-haswell-refresh_6.html

FURTHER EDIT: Here are the details for the Ivy Bridge counterparts, from tests conducted by the same people as the previous link:

http://www.xbitlabs.com/articles/cpu/display/core-i5-ivy-bridge_9.html

 

[chris987]

the higher the TDP the higher the power consunption. as true quad cores i5 have higher tdp, thus power consumption compated to dual cores i3

 

[AdmiralDonut]

Following on from my previous post it would seem that, for non-K series CPU's, the only real difference between the Ivy Bridge and Haswell i5's is that the Haswells use less power at idle speeds than their forebears. To reach this conclusion I have compared the i5 3550 and the i5 4460 as I believe they are the two closest CPU's from each range in terms of speed and TDP.

EDIT: For the sake of completeness, here are the specifications from the ivy bridge i3 range:

http://www.xbitlabs.com/articles/cpu/display/core-i3-ivy-bridge_7.html#sect0

As you can see, the i3's all consume between 60-62W in idle and 84-87W under full load. Comparatively, the i5 is just as energy efficient as the i3, given that it contains two more physical cores than the i3.

 

[rockie_]

Up to 84W
http://ark.intel.com/products/80817/Intel-Core-i5-4460-Processor-6M-Cache-up-to-3_40-GHz

That's the TDP, not it's power consumption. Consumption on idle for the i5 4460 should be around 55-61 watts depending on the chip, and around 156 watts under full load. It being a non-K series CPU means that there will be no overclocking anyway, so that 156W maximum should account for turbo speeds as well.


EDIT: I shall correct myself. The i5 4460 consumes just 44W on average at idle, and 122w at full load running Linpack, as detailed here:

http://www.xbitlabs.com/articles/cpu/display/intel-haswell-refresh_6.html

FURTHER EDIT: Here are the details for the Ivy Bridge counterparts, from tests conducted by the same people as the previous link:

http://www.xbitlabs.com/articles/cpu/display/core-i5-ivy-bridge_9.html

You re messing up the CPU and the system consumption

 

[tzily2]

thanks AdmiralDonut, excellent reads

 

[AdmiralDonut]

Up to 84W
http://ark.intel.com/products/80817/Intel-Core-i5-4460-Processor-6M-Cache-up-to-3_40-GHz

That's the TDP, not it's power consumption. Consumption on idle for the i5 4460 should be around 55-61 watts depending on the chip, and around 156 watts under full load. It being a non-K series CPU means that there will be no overclocking anyway, so that 156W maximum should account for turbo speeds as well.


EDIT: I shall correct myself. The i5 4460 consumes just 44W on average at idle, and 122w at full load running Linpack, as detailed here:

http://www.xbitlabs.com/articles/cpu/display/intel-haswell-refresh_6.html

FURTHER EDIT: Here are the details for the Ivy Bridge counterparts, from tests conducted by the same people as the previous link:

http://www.xbitlabs.com/articles/cpu/display/core-i5-ivy-bridge_9.html

You re messing up the CPU and the system consumption

Which is still more of an accurate representation than the TDP.

 

[rockie_]

Up to 84W
http://ark.intel.com/products/80817/Intel-Core-i5-4460-Processor-6M-Cache-up-to-3_40-GHz

That's the TDP, not it's power consumption. Consumption on idle for the i5 4460 should be around 55-61 watts depending on the chip, and around 156 watts under full load. It being a non-K series CPU means that there will be no overclocking anyway, so that 156W maximum should account for turbo speeds as well.


EDIT: I shall correct myself. The i5 4460 consumes just 44W on average at idle, and 122w at full load running Linpack, as detailed here:

http://www.xbitlabs.com/articles/cpu/display/intel-haswell-refresh_6.html

FURTHER EDIT: Here are the details for the Ivy Bridge counterparts, from tests conducted by the same people as the previous link:

http://www.xbitlabs.com/articles/cpu/display/core-i5-ivy-bridge_9.html

You re messing up the CPU and the system consumption

Which is still more of an accurate representation than the TDP.

Disagree , different video cards different consumption .... my i3 mobile is idling at 5W .

 

[AdmiralDonut]

Up to 84W
http://ark.intel.com/products/80817/Intel-Core-i5-4460-Processor-6M-Cache-up-to-3_40-GHz

That's the TDP, not it's power consumption. Consumption on idle for the i5 4460 should be around 55-61 watts depending on the chip, and around 156 watts under full load. It being a non-K series CPU means that there will be no overclocking anyway, so that 156W maximum should account for turbo speeds as well.


EDIT: I shall correct myself. The i5 4460 consumes just 44W on average at idle, and 122w at full load running Linpack, as detailed here:

http://www.xbitlabs.com/articles/cpu/display/intel-haswell-refresh_6.html

FURTHER EDIT: Here are the details for the Ivy Bridge counterparts, from tests conducted by the same people as the previous link:

http://www.xbitlabs.com/articles/cpu/display/core-i5-ivy-bridge_9.html

You re messing up the CPU and the system consumption

Which is still more of an accurate representation than the TDP.

Disagree , different video cards different consumption .... my i3 mobile is idling at 5W .

Does TDP tell you the idle wattage now? Fascinating.