Junction Temperature of Intel Skylake vs Broadwell

Gov01

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Dec 28, 2015
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From Intel specs,
T junction for Intel Skylake and Broadwell processors are respectively 100 and 105 degree Celsius.
T junction is the maximum temperature which is allowed for a processor without destroying itself.
Isn't Skylake a backward move by reducing the maximum allowed temperatute?
Higher the T junction, better for the processor as it gives more headroom. Also, if it is allowed to go to higher temperature, cooling efficiency increases because temperature difference between environment and processor increases. Temperature difference is inversely proportional to time required to transfer the heat.
Edit: Processors should be designed to be able to operate at a higher temperature without an impact on its 'reliability and life'. This follows a higher Tj max. Finally improved cooling efficiency inherently.
 
Solution
They're the same size and wasn't a power decrease. Broadwell was also a smaller process but an increase over haswell 100 to 105. Ib was 105 and haswell went down to 100 and that was a power increase. So no relation to size and power. Tjmax goes up and down depending on the architecture design. But in any case it's too small of a difference to matter. Operating temps have also stayed relatively the same for multiple generations and having the max change isn't giving any an advantage. You should not be getting over 90c unless you've got a cooling problem or want a problem with its life. The sensors' accuracy is also -+5c.
They're the same size and wasn't a power decrease. Broadwell was also a smaller process but an increase over haswell 100 to 105. Ib was 105 and haswell went down to 100 and that was a power increase. So no relation to size and power. Tjmax goes up and down depending on the architecture design. But in any case it's too small of a difference to matter. Operating temps have also stayed relatively the same for multiple generations and having the max change isn't giving any an advantage. You should not be getting over 90c unless you've got a cooling problem or want a problem with its life. The sensors' accuracy is also -+5c.
 
Solution