Occasionally the stars align. It is very rare in the laptop space that we're able to test two devices, with two very different CPU platforms, with the fewest number of variables possible. But those stars have aligned in 2019, and thanks to Microsoft's Surface Laptop 3 family, we have a rare opportunity to compare AMD and Intel's current-generation laptop platforms in a way that wouldn't normally be possible.

In October at Microsoft’s Surface product launch in New York City, the Redmond company announced the new Surface Laptop 3 family, complete with a new 15-inch model. But what was particularly interesting for us is that the company launched not one, but two variants of this laptop: a consumer model based on AMD's Ryzen "Picasso" Zen+ APU platform, and a corporate model based on Intel's Ice Lake-U platform. And today we're going to get a chance to compare both of these laptops, pitting the top-end Ryzen 7 3780U model against the equally top-end Core i7-1065G7 model.

Microsoft sampled the Ryzen 5 3580U at the launch, and if you’ve not seen the Surface Laptop 3 review, be sure to check that out as well as it goes over the laptop in detail. Today’s focus will be strictly on what is inside.

Microsoft Surface Laptop 3 Showdown
  15-Inch Consumer
15-Inch Enterprise
Processor AMD Ryzen 7 3780U
4C/8T, 2.3-4.0GHz, 15w
Intel Core i7-1065G7
4C/8T, 1.3-3.9GHz, 8MB L3, 10nm
Memory 16 GB Dual-Channel DDR4-2400 16 GB Dual-Channel LPDDR4X-3733
Graphics AMD Ryzen 7 3780U
Vega 11 Graphics (11 CUs)
Intel Core i7-1065G7
Intel Iris Plus "G7" Graphics (Gen 11, 64 EUs)
Display 15" 2496x1664 3:2 PixelSense
Touch and Pen support
Individually calibrated panels
Storage 512 GB PCIe NVMe 256 GB PCIe NVMe
Networking 802.11ac 2x2 MIMO
Bluetooth 5.0
Bluetooth 5.0
Audio Omnisonic Speakers
Dolby Audio Premium
Battery 46 Wh
60 + 5 W AC Adapter
Right Side Surface Connect Port
Left Side USB Type-A
USB Type-C
Headset Jack
Dimensions 339.5 x 244 x 14.69 mm (13.4 x 9.6 x 0.57 inches)
Weight 1.54kg
Camera Front: 720p Camera and Windows Hello support
Dual far-field Studio Mics
Extras Surface Pen and Dial (sold separately)
TPM 2.0
Operating System Windows 10 Home Windows 10 Pro
Pricing 16GB/512GB/R7: $2099 16GB/256GB/i7: $1799
(16GB/512GB/i7: $2199)

As a quick refresher to the platforms we'll be testing, AMD launched the Picasso APU at CES in January 2019. Built on the GlobalFoundries' 12 nm process, it promised to be a significant upgrade to AMD's previous laptop / mobile platform, Raven Ridge. Featuring two or four cores based on AMD's Zen+ architecture, the processor peaks at 4.0 GHz in the top model. On the graphics side, AMD has continued with the Vega iGPU which has been so successful for them in the laptop space, providing significantly more 3D grunt than the previous Intel models could match.

Picasso ships with different size GPUs in terms of Compute Units (CUs) depending on the APU model. The lowest tier Ryzen 3 3200U offers just three CUs, the Ryzen 3 3300U offers six, the Ryzen 5 models offer eight, and the top-tier Ryzen 7 normally offers ten CUs. But for Microsoft and the Surface Laptop 3, AMD has quite literally taken that up to 11, with the Surface Laptop APUs coming with one additional compute unit, bringing about Vega 9 and Vega 11 respectively.

Picasso has been a solid offering, bringing a much-needed boost to AMD’s laptop focused efforts. Raven Ridge suffered from particularly high idle power draw and we were glad to see that AMD has addressed that to a degree with Picasso, although they still have work to do in that area. They also entered 2019 supporting only DDR4-2400, putting them at a disadvantage in the laptop space compared to the LPDDR that most laptops ship with, although Intel has been slow to move to LPDDR4, they’ve finally made that jump.

When it comes to Picasso and today's article, it should also be noted that like previous AMD APUs before it, AMD's fully integrated chips are about half a generation behind their discrete CPUs and GPUs. So while AMD is shipping the even newer Zen 2 architecture on desktops and servers, it's not yet available for laptops. Instead, the Zen+ based Picasso is still their current-generation platform for mobile.

On the Intel side, Microsoft opted for Intel’s Ice Lake platform for the business version of the Surface Laptop 3. Intel's latest and greatest platform, Ice Lake has seen a rough bring-up. Intel’s manufacturing woes are well documented, and it's only now, after more than two years of delays that Intel is shipping 10 nm chips in volume.

Intel’s Ice Lake platform features the new Sunny Cove CPU architecture, which Intel claims has an 18% higher Instruction-per-clock rate (IPC) than its outgoing Skylake microarchitecture, which has more or less played out to be pretty accurate. But the new 10 nm process is not as optimized as the outgoing 14 nm one has become, and the top-tier Ice Lake Core i7-1065G7 maxes out at just 3.9 GHz, a 20% lower clockspeed than Intel's top-tier 14 nm laptop chip, the 4.9 Ghz Comet Lake Core i7-10510U. So, while Intel’s newest CPU is still faster than the old one, things are never as clear as they may seem. With an 18% IPC increase but 20% lower peak clockspeeds, the overall net gain has not been very much. Luckily for Intel, they have enjoyed a significant historical CPU performance lead, which has buffered them somewhat in the laptop space.

But for everything going on with the CPU of Ice Lake, it's the GPU side where things really get interesting. Intel’s integrated GPU offerings have been sufficient for desktop use for quite some time – but just so. Intel has offered excellent media blocks, however the 3D gaming performance of their standard chips has been lacking, especially compared to AMD’s excellent Vega iGPU. Ice Lake addresses that in a couple of ways. The first is through their new Gen 11 graphics architecture, bringing about some minor architectural changes to improve their performance. The second is how much die space Intel is outright allocating for the GPU. In terms of the top-tier processor, the amount is a lot. The latest Intel Comet Lake Core i7-10510U processor offers 24 Execution Units (EUs) of Gen 9.5 graphics, but Intel’s Ice Lake processors offer up to 64 EUs of Gen 11 graphics.

Ice Lake also offers some new functionality, including the much-needed introduction of LPDDR4X support. LPDDR4X not only offers more memory bandwidth (up to 60.6GB/sec), but it's also available in higher capacities than the last-generation LPDDR3, finally allowing low power laptops to pack in more than 16GB of RAM. There’s also broader Thunderbolt 3 support, as well as major improvements to Modern Standby which provides a more tablet-like experience when resuming the device. It all adds up to a significantly better offering than Intel was able to achieve previously.

The Showdown

As stated earlier, it is rare to get a chance to test two different laptop platforms within the same laptop chassis. For various reasons, manufacturers typically use different chassis designs for different platforms – to accommodate things like differences in PCB sizes and batteries – making it difficult to do an apples-to-apples laptop platform comparison. Being able to review two platforms within the same laptop design is incredibly important, since as we’ve seen so many times, the manufacturer can play a significant role in overall system performance based on what the select for a laptop’s size, weight, cooling capabilities, and its SoC power limits.

Consequently, the Microsoft Surface Laptop 3 15-inch laptops are as close to an apples-to-apples comparison between Picasso and Ice Lake as you can make. They both feature the top-end processor from each manufacturer, both offer 16 GB of RAM, and both share the same chassis for cooling.

The remaining differences between the laptops are minor. The AMD laptop features a 512 GB SK-Hynix NVMe SSD, whereas the Intel one ships with a 256 GB Toshiba drive. The Intel laptop features an Intel Wi-Fi 6 wireless adapter, and the AMD model offers a Qualcomm Wi-Fi 5 model. And, the AMD laptop features the black anodized aluminum finish, and the Intel version is silver. None of which should impact our testing too significantly.

SPEC2017 - ST & MT Performance
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  • Andrei Frumusanu - Friday, December 13, 2019 - link

    Correct. Between 3-5 hours each ST and MT.
  • Fataliity - Friday, December 13, 2019 - link

    "despite this being a 3.9 GHz chip, in single-threaded SPEC 2017, it managed to come very close to a 5.0 GHz Core i9-9900K with a massively higher TDP"

    This statement is contradictory. "Single-Threaded" Spec, then "Massively higher tdp" 9900k is 8 cores. which reflects the TDP. Single-Thread is one core, which is completely different. If you scale up the frequency / wattage graph, a Ice Lake 3.5GHz at 8 cores would be about 100 watts. Which im pretty sure is really close to a 9900k off the top of my head. Except this is at 3.5 and 9900k is hitting 5GHz.
  • tipoo - Friday, December 13, 2019 - link

    Shame AMD didn't have 7nm Zen 2 for mobile ready in time for this. Maybe that's when the partnership will make more sense, until then I wish the consumer 15" was also Ice Lake.
  • s.yu - Friday, December 13, 2019 - link

    The difference is too great. This is almost an i3 to i7 comparison, while the price difference is confusingly little. Though the Intel version could be hard to acquire, whoever's interested in this model should aim for the Intel version, even through unofficial channels.
  • eastcoast_pete - Friday, December 13, 2019 - link

    Interesting! Guess Chipzilla is (still) king of the hill in mobile; quite impressive, as this IL i7 even comes close to desktop i7 speeds. AMD really needs to get 7 nm Zen2 or Zen2+ into mobile APUs pronto - they're leaving a lot of money on the table. Now is the time, before chipzilla gets their manufacturing problems worked out!
  • MBarton - Monday, December 30, 2019 - link

    Less impressive when you consider the amount of money and number of defective CPU's required by Intel fabs to get to this point. When you factor in how much money Intel has dumped into their 10nm process over the last decade the money they're making off of 10 nm is sad.
  • Consumer1 - Friday, December 13, 2019 - link

    Interesting to me is the slow speed of the memory with the Ryzen. Ryzen does better with faster memory. To bad we can't equalize the memory to see the effect.
  • Dustin Sklavos - Friday, December 13, 2019 - link

    I would never in a million years accuse AnandTech writers of being shills.

    That said, you guys didn't notice the Ice Lake CPU was being allowed to peak and sustain a solid 8W higher than the Ryzen CPU was?

    Yes, even with the higher ceiling on Ice Lake, it's able to bring its idle draw down way lower than Ryzen's, so the bursty nature of garden variety on-battery web surfing is going to heavily favor Ice Lake.

    But plugged in, full bore benchmarks, the Ice Lake unit is at a clear advantage for power budget and that's concerning. It's not really as fair a fight when the Ryzen is being kneecapped, and while I don't think it would change the overall results, I *do* think the CPU tests wouldn't be the bloodbath that they are, and the GPU tests (and especially gaming tests) would be a clearer cut win for AMD.
  • Brett Howse - Saturday, December 14, 2019 - link

    I mentioned this in the text but the data logging tool is monitoring CPU core power on Ryzen and SoC package power on Core so the data isn't 100% comparable just due to what each company exposes to be monitored. If you look at the CPU temperatures on the Cinebench R20 test as an example the CPU temperatures are very similar so I don't think the power budget is as far off as you'd think, although Intel is pretty aggressive with boost.
  • Fataliity - Saturday, December 14, 2019 - link

    Zen+ APU is also a 216mm die vs Intel's 125mm die. So it has double the surface area, which should mean almost double the heat dissipation (maybe less). So Intel's numbers being twice as high in power draw actually makes sense when you consider the area that is dissipating the heat.

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