LG G6 Review: Cutting Corners... Like A Pro: Performance

By 12:07 Wed, 18 Aug 2021 Comments


Synthetic benchmarks

Yes, yes, the G6 is powered by the Snapdragon 821, a slightly beefed up version of the 820 that was all the rage last year. The Snapdragon 835 is correct around the corner, but Samsung has dibs on it for the Galaxy S8, allegedly, and LG couldn't have any.


LG is trying to spin this predicament into an advantage by saying user experience ranks higher than raw power, and we understand the logic behind such an approach. They've had plenty of time to optimize for the S821, LG says, so the G6 should be just fine with a chipset that's not exactly cutting edge.

And in our experience that's indeed the case, though we haven't seen the S835 in a production device to know just how much we're missing with the S821.

LG does indeed have some tangible improvements to show off on the G6. Tangible, if you hold the phone apart, that is, to reveal its Advanced heat pipe (capital A - it's a name, sort of). LG's advanced touch is a copper plate that sits on top of the SoC, thus providing more contact area for the heat pipe to hold away... heat from the chip. LG's internal testing has shown it to bring a 10% reduction in temperature under sustained gaming load, and in our testing the G6 never got uncomfortably hot.

Anyway, moving on to the benchmarks. As usual, we kick off with GeekBench for some Central Processing Units (CPU) performance comparisons. In the single-core test the G6 outperforms key rivals Galaxy S7 edge and HTC U Ultra, both running on the original S820, and Google Pixel XL with a slightly underperforming S821 implementation. The OnePlus 3T makes the best case for the S821, scoring on par with the Exynos 8890 inside the (other) S7 edge and the Kirin 960s in the Huawei Mate 9 and P10.

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GeekBench 4 (single-core)

Higher is better

  •  Huawei P10

     1927

  •  Galaxy S7 edge (E8890, Nougat)

     1911

  •  Huawei Mate 9

     1898

  •  OnePlus 3T

     1890

  •  Xiaomi Mi Note 2

     1824

  •  LG G6

     1733

  •  Samsung Galaxy S7 edge (S820)

     1696

  •  HTC U Ultra

     1647

  •  LG V20

     1576

  •  Google Pixel XL

     1507

In the multi-core test the Kirin 960 claims what rightfully belongs to it. Only the Exynos-equipped S7 edge tries to haged up, but the Snapdragons are way behind. Still, the G6 posts one of the better scores here for team Qualcomm.

GeekBench 4 (multi-core)

Higher is better

  •  Huawei Mate 9

     6112

  •  Huawei P10

     6069

  •  Galaxy S7 edge (E8890, Nougat)

     5645

  •  OnePlus 3T

     4364

  •  Xiaomi Mi Note 2

     4278

  •  LG G6

     4209

  •  HTC U Ultra

     4201

  •  Google Pixel XL

     4152

  •  Samsung Galaxy S7 edge (S820)

     4128

  •  LG V20

     3824

The G6 storms through Antutu, losing only to the OnePlus 3T and the Moto Z Force, of this select group. The V20 is close by as is the Pixel XL, but the G5 and assorted Galaxy S7 edges are lower down the Antutu chart.

AnTuTu 6

Higher is better

  •  OnePlus 3T

     165097

  •  Lenovo Moto Z Force Droid

     152548

  •  LG G6

     143639

  •  LG V20

     141945

  •  Google Pixel XL

     141186

  •  Xiaomi Mi Note 2

     140324

  •  HTC U Ultra

     139750

  •  LG G5

     134541

  •  Samsung Galaxy S7 edge (S820)

     132849

  •  Galaxy S7 edge (E8890, Nougat)

     129629

  •  Huawei P10

     126629

  •  Huawei Mate 9

     122826

Baseimprint Operating System (OS) II 2.0 isn't as favorable to the G6 though. In this compound benchimprint that assesses overall performance (like Antutu), LG's latest isn't LG's greatest, losing to the V20, but beating the G5. Minimal margins both ways, but what's worth pointing out is that the three LGs place last among these top-class competitors.

Baseimprint Operating System (OS) 2.0

Higher is better

  •  Huawei P10

     2910

  •  Lenovo Moto Z Force Droid

     2689

  •  OnePlus 3T

     2678

  •  Galaxy S7 edge (E8890, Nougat)

     2670

  •  Huawei Mate 9

     2637

  •  Xiaomi Mi Note 2

     2381

  •  Samsung Galaxy S7 edge (S820)

     2352

  •  Google Pixel XL

     2281

  •  HTC U Ultra

     2222

  •  LG V20

     2159

  •  LG G6

     2126

  •  LG G5

     2065

Switching to graphics-only exercises, the G6 isn't quite living up to potential in Baseimprint ES 3.1. It inches ahead of the V20 (S820), but the G5 (S820) does better in this test while other Snapdragons 821 like the Pixel XL and OnePlus 3T post even higher numbers.

Baseimprint ES 3.1 / Metal

Higher is better

  •  Huawei Mate 9

     794

  •  Huawei P10

     716

  •  Galaxy S7 edge (E8890, Nougat)

     680

  •  Lenovo Moto Z Force Droid

     645

  •  OnePlus 3T

     641

  •  Google Pixel XL

     626

  •  Samsung Galaxy S7 edge (S820)

     624

  •  LG G5

     587

  •  HTC U Ultra

     582

  •  Xiaomi Mi Note 2

     556

  •  LG G6

     541

  •  LG V20

     526

Another one of Basemark's suite, the X isn't too flattering for the G6 either. At least it's ahead of stablemates G5 and V20, and pretty much on par with the Pixel XL, there are a lot more successful Snapdragons around and the Kirin 960 snatches top prize here inside the Huawei P10.

Baseimprint X

Higher is better

  •  Huawei P10

     39433

  •  OnePlus 3T

     36958

  •  Huawei Mate 9

     36519

  •  Xiaomi Mi Note 2

     36506

  •  Lenovo Moto Z Force Droid

     36405

  •  HTC U Ultra

     35875

  •  Galaxy S7 edge (E8890, Nougat)

     32609

  •  Samsung Galaxy S7 edge (S820)

     32160

  •  Google Pixel XL

     30861

  •  LG G6

     30507

  •  LG G5

     29456

  •  LG V20

     29385

All in all, the G6 does very well in CPU-intensive tasks, and is below average in graphics-specific tests. Depending on who you ask, it's either a top performer overall (Antutu) or just hanging in there with the others (Baseimprint Operating System (OS) II 2.0). In any case, we didn't experience any hiccups in our interaction with the phone, which, honestly, is a weird to say about a top-class chip like the S821.


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