Intel's Haswell NUC: D54250WYK UCFF PC Review
by Ganesh T S on January 3, 2014 4:25 PM ESTMiscellaneous Factors and Concluding Remarks
Power Consumption:
We have already carried some graphs and tables with power consumption numbers for various scenarios in the preceding sections. The two graphs below compare idle and full load power consumption numbers across different low power desktops that we have evaluated before.
The Haswell NUC turns in stellar numbers for both scenarios. There is no doubt that this is a powerful, yet power-efficient, computing solution.
Thermal Performance:
The D54250WYK has an active cooling solution, but the size of the chassis is still a bit of a concern when it comes to cooling efficiency. To check the thermal performance of the kit, we let Prime 95 fully load up the CPU for 15 minutes, followed by the addition of Furmark to fully load the GPU also for the next 15 minutes. After this, the unit was left to idle while driving the display. Screenshots of the temperatures of various components (as reported by CPUID Hardware Monitor PRO) recorded at 15 minute intervals are presented in the gallery below.
At full CPU load, the temperatures of the cores reach 74 C, the fan spins at 3958 rpm (can go up to 4192 rpm) and the temperatures around the SSD (on the other side of the board) reach 43 C. With the GPU also fully loaded, the temperatures of the cores go down to around 67 C, the fan takes a little break at 3846 rpm. On the SSD side, the temperatures go a little further down to 41 C. After idling for 15 minutes after full loading, the cores are at 32 C, the fan is at 3206 rpm and the temperature on the SSD side goes down to 33 C. There is nothing to complain about with respect to the thermal solution except for the few notes about the fan noise that were made in the introduction.
Final Words:
From the HTPC perspective, it is troubling that HDMI audio still needs careful configuration in XBMC 12.3. For bitstreaming to work, XBMC has to be configured with WASAPI and not Direct Sound. The symptoms are the same as the Netflix HD audio issue. It is also a pity that interlaced VC-1 DXVA decoding doesn't work in XBMC. These are issues faced by the average consumer. We didn't touch upon the HDMI full range problem which HTPC enthusiasts treat as primary issue. All in all, it looks like Intel's graphics drivers still need to resolve lots of issues. While we have seen stellar progress over the last couple of years, it only leaves consumers asking for more to completely move away from discrete GPUs for HTPCs.
Moving away from the HTPC area, the NUC's low power consumption as well as small footprint enhance its appeal for use as thin clients or even full blown PCs for average office / home desktop use. The traditional desktop is being re-imagined in multiple ways with the advent of the touchscreen AiOs and form factors such as the NUC and the BRIX. The comparatively low cost and flexibility provided by the latter has ensured that the NUC form factor is here to stay as yet another excellent computing platform option for consumers.
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elian123 - Sunday, January 5, 2014 - link
Definitely interested in thermals of Brix Pro. Where the Brix's U-series CPUs have 15W TDP, the Brix Pro's R-series CPUs have 65W.DanNeely - Saturday, January 4, 2014 - link
MY assumption is a combination of limited production capacity, and/or too much power consumption to put it anywhere except the top of the product range. It's currently only on 47W TDP models; estimating it's share of the total TDP isn't easy because the best match for the CPU in the fastest Iris pro is a 37W part while the best match for the CPU in the slowest IRIS pro is a 17W model. While there's probably differential binning going on, it suggests that a lower performing IRIS ram chip is a power pig.bobbozzo - Friday, January 3, 2014 - link
You can find fanless (aluminum) NUC cases.Unless Silvermont is much cheaper, I don't see the point as performance (CPU, maybe GPU too) will be much worse.
bobbozzo - Friday, January 3, 2014 - link
Patterson, there's lots of fanless NUC cases; many are quite small.see http://www.fanlesstech.com/search/label/TRANQUIL%2... for examples.
patterson32 - Saturday, January 4, 2014 - link
Ya but the ones I like cost too much compared to the total system cost. That's why I'm trying to see if there are any quieter fan replacements instead.jason64 - Saturday, January 4, 2014 - link
Many of the good small ones need to be imported for US customers which just adds to the already high cost. At least for me anyway. I don't mind going with a quieter fan solution as long as the noise doesn't annoy me especially when watching movies.bobbozzo - Friday, January 3, 2014 - link
Hi Ganesh,1. Any hope of this thing doing 4k video?
What about the BRIX with Iris Pro?
2. how loud is it when playing movies?
3. how loud is it idle?
Thanks for the reviews!
Alketi - Saturday, January 4, 2014 - link
It's silent at IDLE.It's unnoticeably quiet for me when playing 1080P bluray rips (sitting 8-10 feet away).
And, regarding 4K -- my best advice, which I read myself as I had the same concern -- buy a new $400 toy when 4K finally becomes mainstream and you have both the content, and a television, and an HDMI interface, and a receiver to play them with. Don't worry about future-proofing a sub-$500 item. :)
ganeshts - Saturday, January 4, 2014 - link
Yes, this can do 4K video to the extent of what other GPUs from AMD / NV can do. I am not so sure about very complicated 4K encodes. We plan to standardize our 4K HTPC evaluation in Q3 when HDMI 2.0 (4Kp60-capable) sources and sinks come into the market.Fan noise is only an issue if you are using it as an office machine and sitting less than 3ft away from it (and that too in a quiet environment). This issue is there at idle too.
If you are 3ft. or more away, I don't think it is even possible to hear the fan :)
chizow - Saturday, January 4, 2014 - link
Still too pricey imo for what it is and what it is limited in doing. I was wondering why a rash of sales popped up on the last-gen NUC with i3 + Thunderbolt today, on sale at a variety of places for $160. That is what I am looking to pay for one of these units given the fact you still need to buy RAM and an mSATA. I wonder if Intel would introduce a cheaper Atom version as Atom seems to be the cure for all Intel-price-related woes. :DI was hoping this updated version corrected the biggest downside of the original, the requirement of mSATA but it only looks like the pricier WYKH SKU allows for full 2.5" SSDs. I have plenty of those in the 120-128GB range so I'd rather not spend another $120 or so on a similar sized mSATA drive. Also, Intel still not including a mickey-mouse power cable is ridiculous, it really feels like they are doing everything they can to not sell these things.