GPU Performance

While many will lament the loss of the Intel Iris graphics on this year’s lineup of Surface Pro computers, as already stated, there’s no Iris graphics available anymore in the 15-Watt lineup. There’s no doubt that the extra execution units, and the extra eDRAM as a system cache were valuable, but you can’t sell a product that doesn’t exist. As such both the Core i5 and i7 models have the Intel UHD 620 GPU for 2018. Whether or not this will make a dramatic impact on real-world use will depend heavily on what the GPU was used for, since in some cases the wider GPU could made a noticeable impact, but often it was highly thermally limited in a 15-Watt package anyway.

To test GPU performance, the Surface Pro 6 was run through our non-gaming GPU suite. If you’d like to compare it to any other device we’ve tested, please use our online Laptop Bench.

3DMark

Futuremark 3DMark Fire Strike

Futuremark 3DMark Sky Diver

Futuremark 3DMark Cloud Gate

Futuremark 3DMark Ice Storm Unlimited

Futuremark 3DMark Ice Storm Unlimited - Graphics

Futuremark 3DMark Ice Storm Unlimited - Physics

In the synthetic 3DMark from UL Benchmarks, the Surface Pro 6’s extra CPU grunt helps it stay with the Iris equipped 2017 Surface Pro except in the least demanding tests, although on the most demanding GPU test, which is Fire Strike, the UHD 620 is well behind AMD’s Ryzen 7 in the same 15-Watt package.

GFXBench

GFXBench GL 4.0 Car Chase Offscreen

GFXBench GL 4.0 Manhattan 3.1 Offscreen

GFXBench 3.0 Manhattan Offscreen 1080p

GFXBench 3.0 T-Rex Offscreen 1080p

GFXBench is an OpenGL based test and is less relevant due to the lack of new OpenGL titles. These tests are aimed at the mobile computing crowd for smartphones and tablets, although in those cases the tests are run in 16-bit mode and not necessarily in OpenGL either so the results aren’t directly comparable. Here again we see the Surface Pro 6 in the middle of the pack, although the AMD based system drops off due to OpenGL drivers.

Dota 2

Dota 2 Reborn - Value

Dota 2 Reborn - Mainstream

Dota 2 Reborn - Enthusiast

Valve’s Dota 2 is a very popular arena battle game, and the game itself is playable on a wide-range of devices. The game engine tends to be CPU bound quite quickly, but is still a good yardstick when looking at lower-power GPUs. Here the Surface Pro 6 does quite well, especially on the lower detail settings. When the game is set to its maximum settings at 1920x1080, the Iris GPU in last year’s Surface Pro ends up throttling heavily and offering lower performance despite being a quicker GPU on paper. You can see quite easily how the game ends up CPU bound though if you look at the Surface Book 2 which features an NVIDIA GTX 1060 GPU. This GPU will easily run circles around anything else in the charts, but the game is held back by the U series processor.

GPU Conclusion

Intel hasn’t made significant changes to its GPU lineup for some time, and definitely lags behind AMD’s Vega architecture found in the Ryzen mobile lineup. Due to the lack of availability, Microsoft was unable to  maintain the tradition of offering the Iris GPU either. We’re fairly accustomed to where the Intel iGPU sits and until a new one is launched, we aren’t going to see anything too dramatic in the GPU performance.

Storage Performance

As with last year’s model, the Surface Pro 6 uses a BGA SSD meaning it’s soldered directly onto the motherboard. This saves space, as well as a couple of grams of weight, compared to the M.2 versions. SSDs have become a commodity, so generally manufacturers tend to buy from several suppliers. We can’t say for sure whether Microsoft is doing that this time, since we just have the single sample, but in the past they have so it would not be surprising to see this multi-sourced.

In the review unit we have the SK Hynix BC501 in a 256 GB configuration. This is a PCIe Gen 3 x2 SSD, which SK Hynix rates for 110K IOPS random read and 150K IOPS random write.

The SSD is bumping into the limits of PCIe 3.0 x2 on sequential read and write, and only the 128 GB model won’t do that according to SK Hynix. As usual, larger SSDs offer better performance, but you’re not going to see higher sequential reads than this BGA SSD offers in a x2 configuration.

System Performance Display Analysis
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  • khanikun - Tuesday, October 16, 2018 - link

    The SB2 is a mixed bag. No dedicated graphics, no active cooling. Even if you have the dedicated Nvidia GPU, only the performance base gets active cooling. None of the versions have active cooling for the Intel CPU. It's probably throttling right after a few secs of work. Reply
  • eddman - Tuesday, October 16, 2018 - link

    The 15" SB2 has a CPU fan.

    https://www.notebookcheck.net/Microsoft-Surface-Bo...
    Reply
  • Mitch89 - Wednesday, October 17, 2018 - link

    Feels like an Intel Quick sync thing. Reply
  • GreenReaper - Friday, October 19, 2018 - link

    Yeah, the video block is a part of the GPU and I imagine the GTX 1060 just does it slightly slower. Reply
  • awehring - Tuesday, October 16, 2018 - link

    In the battery test 2013 there is a difference of 34 minutes in the graphic, not 1.25 hours as in the text.

    Some typo?
    Reply
  • Brett Howse - Tuesday, October 16, 2018 - link

    Graphic shows 607 for SP6 and 533 for SP5? That's 74 minutes not 34. Reply
  • awehring - Tuesday, October 16, 2018 - link

    Oh, sure, you are right.

    Had 5:33 in my head.
    Reply
  • thesloth - Tuesday, October 16, 2018 - link

    Would be nice to know the minimum brightness too. Reply
  • Brett Howse - Tuesday, October 16, 2018 - link

    It's 5 nits - sorry forgot to mention that. Reply
  • eddman - Tuesday, October 16, 2018 - link

    I think you should do sustained CPU tests with cinebench, as Notebookcheck does. It reveals device's true performance under long, heavy workloads and tests the effectiveness of the cooling solution better.

    For example, in their tests surface book 2 15" achieved a 669 score on the first, cold run but by the fifth run it was down to 589 and later on it hovered in the 584-586 range.
    Reply

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