This article is bullshit? sigh. "Oh this computer is hotter than the other so the CPU must be less efficient!" Yeah right.
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Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell
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Comparing temps with different cooling systems is pointless. I can make any CPU cooler by turning up the fan speed and creating more noise.
Originally posted by sireangelus View PostMy problem is that frequency on laptops and desktops are not growing- stagnation
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I would like to see a wattage comparison. The thermal comparison doesn't really mean much because the laptop build comes into play (heatsink size/material, fan efficiency, etc).
I never realized how hot your zenbook got and that it was only a dual core part! I've got the sager version of the System76 laptop you reviewed before you got the zenbook, the one with the iris 5200. This thing never breaks 85c in gaming or compiling conditions, it's a quad core with an extra 128MB of on package memory and I upped the TDP to 50watts with Intel's XTU. I saw how quickly your zenbook reached max temp and that tells me there is a problem with your heatsink size or CPU contact. I can't imagine you haven't already tried reseating the heatsink, lapped it or used different thermal grease? I actually had to lap my heatsink because it was arched in the middle by 1 mm, made a huge difference after.
Anyway, back to topic. It seems your broadwell benchmarks are between 20%-30% faster and run a lot cooler, both of these cannot be explained by a 35% shrink. I'm thinking the build quality of the zenbook is the culprit. At most there should be a modest performance bump (20% sounds right) with the same or similar temps. Or there should be almost equal performance with a bit lower temps. Not both.
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Originally posted by monraaf View PostThinkpad have 70 degrees C cutoff before they start throttling. Comparing only a single parameter does not add much value to the result. Sustained CPU frequency and temperature graph would add more value to the test resutl. Additionally Intel allows the manufacturer to configure the max TDP and SPD.
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Originally posted by Michael View PostAgain this was just some basic results tossed together of the X1 Carbon compared to old data for a quick one page article.... But as you can see from the OpenBenchmarking.org result file, the ThinkPad simply wasn't throttling or doing something to cause poor performance for lower temps as the CPU/GPU results are very good. Again, more tests are coming of various factors.
I think you should send the zenbook back it has an obvious issue. Have you tried replacing the thermal paste? Or perhaps something is loose because that temp is really not normal.
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