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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  • fallaha56 - Tuesday, October 16, 2018 - link

    Chip cannot ramp up as much...makes it slow in real life, stuck at 3Ghz instead of hitting 4+ Reply
  • wr3zzz - Tuesday, October 16, 2018 - link

    Got it. I just checked the i5-8250U spec. Its turbo ceiling should be 3.4Ghz and according to this article the Surface Pro can only hit consistently at 3Ghz before needing to throttle down.

    Still, I wish more companies would make fanless U-series laptops. Given that prices are basically the same I would like to have choices between 3.2Ghz two core Y-series or throttled 3Ghz four core U-series in various silent form factors.
    Reply
  • Brett Howse - Tuesday, October 16, 2018 - link

    3.4 GHz will be the max on 1 core though not all 4 cores. Reply
  • krutou - Tuesday, October 16, 2018 - link

    Depending on laptop manufacturer settings for max turbo TDP, it is possible to hit 3.4 GHz on 4 cores with a 35-45W short turbo.

    Clock speeds will ramp down for sustained turbo, and with decent cooling maintain 3.0-3.3 GHz sustained turbo at 25-28W. Laptops with crappy cooling will ramp down more and end up with sustained Cinebench R15 multi scores in the 500s.
    Reply
  • khanikun - Tuesday, October 16, 2018 - link

    It can hit it's turbo boost ceiling. It's a matter of how long it can stay there that's the downside. Could be a few secs, could be a few minutes. It's more the former, than the latter though. Reply
  • krutou - Tuesday, October 16, 2018 - link

    Hell no. There is no point in having a quad-core Intel CPU without active cooling.

    The 8250U already hits its thermal limit easily in most laptops with active cooling.

    If you don't want fans, buy the neutered Y-class CPUs.
    Reply
  • damianrobertjones - Tuesday, October 16, 2018 - link

    Did you read the review? Did you look at the charts?

    After doing so I made an order for the i5, 8Gb, 128Gb model to replace my 2017 i5, 4Gb, 128Gb Surface. Done.

    For what I do the new i5 model trashes the older 2017 i5.
    Reply
  • digiguy - Tuesday, October 16, 2018 - link

    It's more complex than just active cooling = no/little throttling, no active cooling = throttling.
    MS has developed one of the best passive cooling solutions for ULV CPUs, second only to Acer liquid loop, and it has improved it over the years. Hardly any manufacturer manages to do as well. What's more it's even harder in a detachable like the surface. Surface pro 5 outperforms some active cooled 7th gen i5 laptops in sustained loads. So no, it's not just throttling (as it was in surface pro 3) but above all how good the passive heat dissipation is.
    Reply
  • fallaha56 - Tuesday, October 16, 2018 - link

    so, in summary:
    -no USB-C
    -no HDR
    -same resolution
    -no IrisPro
    -likely UHS-I
    -slow Wi-Fi, no BT5
    -no Spectre / Meltdown hardware fix

    Surface owners groaning...count me out for at least a generation, plus the new iPadPro will probably be getting a shout...
    Reply
  • damianrobertjones - Tuesday, October 16, 2018 - link

    -No need for USB C. Yet. Ish
    -No need for HDR. See through the marketing. (Yeah, but it would be nice)
    -and?
    -Did you view the graphs?
    -No issues there.
    -Pretty poor. At least we have a usb port to add something faster
    -True dat.

    The iPad is more of a toy when you think about it. I have an i5 4Gb Surface Pro (2017) and the first gen ipad pro (12.5"). The ipad is my web browser and mild gaming while the pro is everything else. But that's me.
    Reply

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