Power Consumption and Thermal Characteristics

The power consumption at the wall was measured with a 4K display being driven through the HDMI port of the system. In the graph below, we compare the idle and load power of the Intel NUC12WSKi7 (Wall Street Canyon) with other systems evaluated before. For load power consumption, we ran the AIDA64 System Stability Test with various stress components, as well as our custom stress test with Prime95 / Furmark, and noted the peak as well as idling power consumption at the wall.

Power Consumption

The numbers are consistent with the TDP and suggested PL1 / PL2 values for the processors in the systems, and do not come as any surprise. As expected, the numbers for both the actively-cooled NUC 12 Pro kits are similar. The Bleu Jour Meta 12 doesn't seem to be able to support the default 40W / 64W PL1 / PL2 values. Instead, the peak package power tops out around 32W, translating to an at-wall power consumption number below 55W.

Stress Testing

Our thermal stress routine is a combination of Prime95, Furmark, and Finalwire's AIDA64 System Stability Test. The following 9-step sequence is followed, starting with the system at idle:

  • Start with the Prime95 stress test configured for maximum power consumption
  • After 30 minutes, add Furmark GPU stress workload
  • After 30 minutes, terminate the Prime95 workload
  • After 30 minutes, terminate the Furmark workload and let the system idle
  • After 30 minutes of idling, start the AIDA64 System Stress Test (SST) with CPU, caches, and RAM activated
  • After 30 minutes, terminate the previous AIDA64 SST and start a new one with the GPU, CPU, caches, and RAM activated
  • After 30 minutes, terminate the previous AIDA64 SST and start a new one with only the GPU activated
  • After 30 minutes, terminate the previous AIDA64 SST and start a new one with the CPU, GPU, caches, RAM, and SSD activated
  • After 30 minutes, terminate the AIDA64 SST and let the system idle for 30 minutes

Traditionally, this test used to record the clock frequencies - however, with the increasing number of cores in modern processors and fine-grained clock control, frequency information makes the graphs cluttered and doesn't contribute much to understanding the thermal performance of the system. The focus is now on the power consumption and temperature profiles to determine if throttling is in play.

Custom Stress Test - Power Consumption Profile

Custom Stress Test - Temperature Profile

The two actively-cooled NUC 12 Pro kits have expected power consumption and temperature profiles. A sustained package power of 40W is possible in both configurations, with around 32W being the maximum power budget of the iGPU. Package temperatures remain below 90C, and the SSD cooling is good enough to prevent throttling as it remains below 50C. However, the Bleu Jour Meta 12 is a completely different story. It appears that the thermal solution is capable of operating the board only in the cTDP down mode of 20W with a similar PL1 and a 32W PL2. Further investigation is a must from Bleu Jour's viewpoint, and this is probably one of the reasons why the Meta 12 is not available for public purchase yet.

Thermal Performance

One of the key aspects of fanless systems is the thermal profile under load. Our stress test saw the internal package temperature go as high as 100C in the Bleu Jour Meta 12, and the chassis (doubling up as a heat-sink) tries hard to bring it down.

Using a FLIR One Pro thermal camera, the maximum case temperature under extreme stress at normal room temperature (25C) was determined to be around 78C.

The gallery above presents additional thermal photographs taken at the end of the simultaneous CPU and GPU loading segment of the custom stress test. Given that thermal throttling comes into play and the chassis struggles to keep up, the above temperatures are no cause for surprise.

HTPC Credentials Miscellaneous Aspects and Concluding Remarks
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  • dontlistentome - Thursday, January 26, 2023 - link

    There's quite a few discounts floating around for the 11th gen at the moment, so probably a better bet for many users.

    As ever Intel send the i7 - i've been looking at the i3-1220p version - effectively the i5-1235u - 2x P plus 8x E cores should be better thermals, still great peak performance and should live nicely in an Akasa Turing case fanless. Only frustration is there onlyseems to be about £40 between the i3 and i5.

    I think if you're using these as a desktop the Dell/HP/Lenovo micro desktops are a better bet - bigger for better cooling so should be quieter.
  • 1_rick - Thursday, January 26, 2023 - link

    I've been using a Beelink SEI12 for a couple of weeks, the 1235U version, and it's pretty impressive, all things considered. I did notice that out of the box it will tend to be power limited to keep the fan noise reasonable: Prime95 settles in very quickly to a speed of around 2500MHz for the P cores and 100MHz slower for the E cores. But if you're doing anything that isn't that computationally intensive, it feels plenty snappy, especially compared to, say, a 5yo Dell Latitude (even when that was new). Surprisingly, it'll even play Minecraft (unmodded) pretty well.
  • dontlistentome - Friday, January 27, 2023 - link

    Nice. I've got an i7-1260p thinkpad from work and it's a furnace that thermally throttles constantly. I don't need 4 fat cores for a box that will be running pretty gentle server services (basic file-sharing, MySQL for Kodi, Roon, Home Assistant etc) two can handle the peaks with the E cores humming away in the background. I may just go for an 8 E core i3-300N box if they appear soon.
  • nandnandnand - Friday, January 27, 2023 - link

    It might be worth it to go to 1215U or 1235U instead depending on the use case. Alder Lake-N drops a memory channel, supports only 16 GB memory, and drops many of the PCIe lanes. If the specs on ARK are accurate. Even the weird Intel Processor U300 might be better.
  • diamondsw - Thursday, January 26, 2023 - link

    Given the recent introduction of the M2 Mac Mini, it would be very interesting to see how Intel's small form factor integrated system compares to Apple's. We haven't seen much head-to-head between Intel and Apple Silicon in a while, and a lot has changed (more for Intel than Apple). I imagine performance and power consumption would be closer these days.
  • timecop1818 - Thursday, January 26, 2023 - link

    What do you need to compare? The NUC runs a real OS and can actually be used for serious work, while the apple offering can only scroll Facebook and Instagram but at 120Hz
  • Grabo - Thursday, January 26, 2023 - link

    While "a real OS" and "serious work" makes your comment harder to take seriously you have a point in that the Nuc can run any OS (except perhaps macOS) whereas the Macmini is closely associated with MacOS (I hope Asahi gets to where it wants to go and enables Linux on Apple's arm implementation). I have little doubt the Macmini is the more power efficient machine, especially the M2. (Am currently writing this on a NUC12WSHi5. It works pretty well but don't force it to do 120Hz and play youtube videos. I kind of wish more reviewers would mention the NUC fan. Even at "quiet" it behaves like the small fan that it is, sudden jumps to 100% fan noise as the CPU or GPU load suddenly increases)
  • Kuhar - Friday, January 27, 2023 - link

    I agree with you 100% - both on comment about Apple and NUC. The problem with those NUC fans is IMHO their coolers arent big enough (not enough mass - same problem with most laptops) so the fan starts every time even for relatively small temperature increase. And the fan curve isnt to my liking aswell - i would prefer if fan would spin constantly with lower RPMs than to start/stop all the time.
  • max - Friday, February 3, 2023 - link

    Because it'll be interesting. That's why. Mabye not for the wintel-fanboys like You, which need couple of years to grow up. MacOS i very powerful OS, and Apple hardware is the best in its class. I agree, maybye not for kids like you, so don't bother. Nobody cares what is your opinion.
  • erotomania - Thursday, January 26, 2023 - link

    Thanks Ganesh!

    $167 for a 100 MHz clock bump (1260P -> 1270P). Anything else included with that? I looked and could not find.

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