GPU Performance

One area where Intel-based notebooks had previously was in the graphics department, and with Intel’s launch of Ice Lake they directly addressed that. Along the way, Intel has also joined AMD in more aggressively demarcating their integrated GPUs based on the price of the processor. Intel always had a small bit of variation in the included GPU, but for the most part, a Core i3, i5, or i7 U-series would generally offer the same 24 Execution Unit GPU configuration. With Ice Lake, the naming scheme now includes the GPU size in the processor name, with G1, G4, and G7 graphics options, meaning lower-priced Core i3 and i5 models will not necessarily be outfitted with the same iGPU as a Core i7.

Intel 10nm Ice Lake-U Series CPUs
AnandTech Cores
Threads
Base
Freq
1C
Turbo
AC
Turbo
GPU
EUs
GPU
Freq
L3
Cache
TDP
Core i7-1068G7 4 Cores
8 Threads
2.3 4.1 3.6 64 1100 8 MB 28 W
Core i7-1065G7 4 Cores
8 Threads
1.3 3.9 3.5 64 1100 8 MB 15 W
25 W
Core i5-1035G7 4 Cores
8 Threads
1.2 3.7 3.3 64 1050 6 MB 15 W
25 W
Core i5-1035G4 4 Cores
8 Threads
1.1 3.7 3.3 48 1050 6 MB 15 W
25 W
Core i5-1035G1 4 Cores
8 Threads
1.0 3.6 3.3 32 1050 6 MB 15 W
25 W
Core i3-1005G1 2 Cores
4 Threads
1.2 3.4 3.4 32 900 4 MB 15 W
25 W

This comes into play since Dell offers three processor options on the XPS 13, with both the Core i3 and Core i5 variants only offering the G1 graphics. To be clear, even the G1 Generation 11 graphics on Ice Lake are a larger GPU than the previous Gen 9.5 offered, with even the lowliest Core i3 featuring 32 Execution Units, but the full GPU in this laptop is only found if you choose the Core i7 model, which offers the 64 Execution Unit G7 graphics. It makes choosing the processor a bit more complex than it used to be, as it would be on an AMD-based laptop which follows the same mantra.

Dell shipped the XPS 13 review unit with the Core i7-1065G7, and as such this device does feature the full-sized GPU, and as we have seen in other Ice Lake based notebooks, the larger GPU is a significant improvement over previous designs.

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 our first synthetic test, the XPS 13 finishes slightly behind other Ice Lake notebooks, but not by a wide margin.

GFXBench

GFXBench 5.0 Aztec Ruins Normal 1080p Offscreen

GFXBench 5.0 Aztec Ruins High 1440p Offscreen

We run the DirectX 12 tests from version 5 of GFXBench, and as expected, the XPS 13 scores right in the same range as expected.

Tomb Raider

Tomb Raider - Value

The original Tomb Raider has been a challenge on integrated GPUs, but with AMD’s Ryzen and Intel’s Ice Lake, the game is finally playable although without any extreme graphics settings enabled. Once again, the XPS 13 slots in right where it is expected.

Rise of the Tomb Raider

Rise of the Tomb Raider - Value

The first sequel to the re-launched Tomb Raider series is much more graphically demanding, and the XPS 13 slides out of the playability window even at the lowest settings we test at.

Strange Brigade

Strange Brigade - Value

Strange Brigade is a game with a wide-range of settings, and can be very playable even on integrated graphics. As seen with Rise of the Tomb Raider though, the XPS 13 is not quite as performant as some of the other Ice Lake notebooks we have tested.

F1 2019

F1 2019 - Value

Codemaster’s F1 simulator did not fare very well on the XPS 13, scoring well under expectations. This game can be very CPU limited as well, so TDP can be a major factor.

Far Cry 5

Far Cry 5 - Value

Like most of the other games, we see that Far Cry 5 is once again below other Ice Lake systems, but even on the best integrated system Far Cry is only barely playable regardless.

GPU Conclusion

Although the XPS 13 was outfitted with the top of the range Core i7-1065G7, with its full 64 Execution Unit GPU, the XPS 13 was not quite able to match some of the other Ice Lake systems we have seen. We will get into that a bit more in the thermals section, but this is likely due to Dell more aggressively clamping the processor to its recommended 15-Watt TDP, where other manufacturers may be more aggressive and allow 20+ Watts. Since the GPU is one area where more thermal headroom is always welcomed, this can have a larger impact than a CPU-bound task.

Otherwise, while the Ice Lake G7 GPU configuration is nothing short of a massive step up from Intel's earlier integrated GPUs, they are also competing with AMD in a field that's normally AMD's strength. So for as fast as the G7 configuration is, it and the XPS 13 end up trailing laptops based on the half-a-generation newer AMD Ryzen 4000 APUs.

System Performance Display Analysis
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  • Jorgp2 - Thursday, July 16, 2020 - link

    >Zen 2 mobile chips easily outperform Ice Lake and Comet Lake

    Only in multicore, and only because they have 8 cores.

    The Zen 2 architecture still has around Skylake level performance, SNC and WLC have a much higher lead over Skylake than Zen 2 does.
  • rhysiam - Thursday, July 16, 2020 - link

    On what basis are you announcing Sunny Cove and the unreleased Willow Cove as superior architectures? Can you link to some data to support that? Because this review directly contradicts that claim.

    The lightly threaded tests in this very review show the 4700U trading blows with the 1065G7. Both are clocked similarly. IPC is close in workloads that are relevant to ultrabooks.

    I just can't see any basis for the claims you are making here.
  • Deicidium369 - Friday, July 17, 2020 - link

    Comparing a 2020 CPU with a 2019 CPU is not a fair comparison.
  • sorten - Thursday, July 16, 2020 - link

    Most of what I do as a software engineer, from the compilers, build tools, and the software I write, eats up the cores. So if I can get 2x the cores for less money, then that's a bonus rather than a point against AMD.
  • vladx - Friday, July 17, 2020 - link

    As a fellow software engineer, I still prefer Intel over AMD. What you win with having more cores, you lose with poor compiler optimizations and the big advantage of AVX-512 in certain workloads. Not to mention AMD platforms tend to have more bugs at launch so you spend more time finding workarounds.
  • Spunjji - Friday, July 17, 2020 - link

    @vladx with the FUD here. Nice weasel words with "tend to have more bugs" even though we're talking about a specific platform that doesn't have any egregious bugs.
  • Santoval - Friday, July 17, 2020 - link

    "and the big advantage of AVX-512 in certain workloads. "
    Can you name some of these workloads? Even better, out of 10 workloads (or, to make it temporal, out of every "10 programming hours") on average how many can benefit by or be accelerated with AVX-512? Hand on heart answers only please.
    As for the "poor compiler optimizations" do you mean the "super aggressive compiler flags Intel tends to prefer that often result in poorer, bug prone code"?
    Spunjji below covered me with the arbitrary "bugs" of the "AMD platforms".
  • Santoval - Friday, July 17, 2020 - link

    "The Zen 2 architecture still has around Skylake level performance, SNC and WLC have a much higher lead over Skylake than Zen 2 does."
    That is pure, groundless BS. You have also confused the Zen 2 "architecture" (thus only the *IPC* of Zen 2) with Skylake's "performance" (both its IPC and clock speed). That is like comparing the acceleration from 0 to 60/100 of one car with the final speed of another car without even realizing the arbitrary comparison.
    Finally CPUs with Willow Cove (i.e. Tiger Lake) has not even been released yet, so referring to Willow Cove in the present tense is beyond surreal.
  • dudedud - Friday, July 17, 2020 - link

    Did you even see the Cinebench single threaded results? Zen 2 has Ice Lake performance at around the same clock (4.1 vs 3.9)
  • Brett Howse - Friday, July 17, 2020 - link

    There seems to be a lot of misinformation flying around here. Perhaps I should link to our initial Ryzen 7 4700U review in every review I do. Ice Lake is well ahead in single-threaded performance over Zen 2, despite the lower frequency. AMD has double the cores though so even lightly threaded workloads can see a nice improvement.

    Please reference this:
    https://www.anandtech.com/show/15762/the-acer-swif...

    Cinebench is just a single workload and is compute bound.

    Hopefully we can update our SPEC results with a LPDDR4 laptop as well since our first take was just DDR4.

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