Final Words

When looking at convertible laptops, Lenovo likely has the most prolific number of convertible devices and they fall under the Yoga line. When they came up with the Yoga hinge, it set the bar for convertible devices. It keeps the balance and usability of a traditional clamshell Ultrabook, but adds in the ability to use it in three additional touch modes. For the Yoga 3 Pro, Lenovo has refined this experience again, with a thinner, and lighter laptop. The watchband hinge is both stylish and functional. They have kept the high resolution display of the Yoga 2 Pro, but improved the overall efficiency of the device which allowed them to keep similar battery life with a smaller, and therefore lighter battery.

Moving to Core M may seem like a step backwards in performance. However when you compare most workloads to the outgoing Core i5 Yoga 2 Pro, the Yoga 3 Pro can hold its own against it, and even surpasses it in many benchmarks. Core M is more than just a lower power SoC. It is also about packaging. The size of Core M as compared to Broadwell-U is quite a bit smaller in all dimensions, including the Z axis, which allows for more space for other components around it, and a thinner overall device. When you look at the Yoga, and realise it is not just a notebook computer, the extra reduction in thickness is appreciated. It is still a bit big to use as a tablet, but it is better as a tablet than the outgoing model.

From left to right: Broadwell-Y (Core M), Broadwell ULT/ULX and Haswell ULT/ULX

The GPU side is certainly a regression though. Core M’s very restrictive TDP of just 4.5 watts means that the GPU is limited a lot quicker than Haswell-U or Broadwell-U GPUs are. It has the same basic architecture as the Broadwell-U GPU, and therefore it should have similar performance if given the headroom for this. Intel still has some work to do on the GPU side to make it more efficient, and they lag some of their competitors there, although less so with HD 5300 than the woeful Atom N2840’s Intel HD Graphics. They have made some headway here, but still have some more room to improve.

As a tablet, the Core M powered Yoga 3 Pro will run circles around other tablets when performing CPU tasks. The GPU is a bit behind, but it is ahead of the iPad Air already, so it is not a slouch. The CPU is miles ahead though, even when compared to the Apple A8X which is consistently the best ARM based tablet CPU.

The display, which was a defining feature of the Yoga 2 Pro, is a slightly different model of the Samsung RGBW IPS LCD. It offers the same great viewing angles and crisp text as before, but it also suffers from being uncalibrated. It would be nice to see Lenovo include an ICC profile, or better yet to switch to the Sharp IGZO display which has proven to be the current LCD to beat right now. The one real drawback of the Samsung display is the terrible black levels, which give a mediocre contrast ratio and is very noticeable when watching movies on the Yoga 3 Pro. A switch to a true RGB model like the Sharp would fix that glaring issue. The steady march of progress means that Lenovo sitting still on their display means that they have been passed by their competitors.

Lenovo has fixed their biggest issue with the Yoga 2 Pro though, and that was the wireless performance. The move to a Broadcom 802.11ac solution has moved them from the bottom to the top of our test, and it was sorely needed. My wife still owns and uses the Yoga 2 Pro every day, and her one major complaint is the wireless performance. The new model solves that and then some.

For 2015 though, Lenovo has some serious competition. If you are after a pure Ultrabook, the Yoga 3 Pro is likely not the frontrunner right now. Lenovo does have other offerings, such as the non Pro version of the Yoga, and the ThinkPad Yoga, which do come with Broadwell-U and would have better performance for heavier workloads. However I have yet to see a better convertible laptop yet. Other OEMs have taken the Yoga style hinge and incorporated it into their designs, and we will see more of these as time goes on.

The Yoga 3 Pro is at least as good as the Yoga 2 Pro, which is a compliment. After owning the Yoga 2 Pro for over a year, it is still incredibly handy to be able to flip the display around and use it as a touch device. The new Yoga 3 Pro improves the overall design, and makes it even thinner and lighter than the outgoing model. The Yoga 3 Pro is even thinner than the just announced MacBook, and although it is also a bit heavier, it does include a touch digitizer and Gorilla Glass over the display, all the while coming in at $1150, around $150 cheaper than the MacBook.. Apple has also seen that Core M, especially the just released 5Y71 model, is enough performance to not have any regression over Haswell-U which powered all of the Ultrabooks last year. If battery life is not your biggest concern, then the Yoga 3 Pro is certainly worth checking out. It offers incredible versatility due to the design, and it has made some nice improvements for the new model.

Battery Life, Wi-Fi, Speakers, Noise, and Software
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  • nathanddrews - Friday, March 13, 2015 - link

    Broadwell GPU performance is such a letdown. Is there any chance of combining Core M with a dGPU or would that only work with the other Intel SKUs? It would be nice to get the battery efficiency of Core M when you need it, but then have the option for GPU power when you need it.
  • Zizy - Friday, March 13, 2015 - link

    I don't see any gains using M (vs U) in perf/W. Adding dGPU would mean fans so you lose that benefit as well. Therefore, why bother? :)
  • nathanddrews - Friday, March 13, 2015 - link

    Cost savings, perhaps? Remember the Atom/Ion combos?

    I admit it seems like a waste of time and effort given what's already possible with a regular U-SKU.
  • Gigaplex - Friday, March 13, 2015 - link

    Perhaps I missed something, but I don't think the Core M chips are cheaper. In fact I heard they were more expensive.
  • fokka - Friday, March 13, 2015 - link

    intel lists a price of 281$ for its core m CPUs, from the 5y10 to the 5y71, which incidentially is the same price it asks for its i5 5200u.

    http://ark.intel.com/de/products/series/83614/Inte...
  • CaedenV - Friday, March 13, 2015 - link

    The CPU is so extremely low performance that it would choke almost any dedicated GPU. Plus you would get terrible battery life, have to add fans, a thicker design, etc. etc.
    If you are going to put in a dGPU then you really need a u-SKU product in the first place. This is just a glorified netbook. Fine for browsing the web, watching shows, and playing simple games like cards or angry birds, but that is it.
  • 3ricss - Friday, March 13, 2015 - link

    That is exactly right. We need to remember the purpose and audience this device is designed for. And based on this being a netbook I feel the price point is way to high. Better off considering the dell xps 13 or even SP3 at this point.
  • defferoo - Friday, March 13, 2015 - link

    not sure why everybody thinks Core M = netbook. netbooks use Atom processors, this CPU is clearly in a completely different league in comparison. I'm almost certain that you wouldn't be complaining about it being a netbook if Intel kept using the old Y-series branding and the CPU was called a Core i5-5071Y.
  • fokka - Friday, March 13, 2015 - link

    it might also have to do with the low tdp why people keep comparing it with netbooks.

    on another note, if intel would keep the core-i naming scheme for the chip, i'm sure the 5y71 would be an i7 (and cost 400 bucks...)
  • mkozakewich - Sunday, March 15, 2015 - link

    Also considering that newer Atoms have like 2x the performance at less power, and Core-M has nearly an order of magnitude more performance.

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