GPU Performance

The heart of any gaming laptop is the GPU, and with the AMD Radeon RX 6800M, the ASUS Strix G513QY offers one of the fastest GPUs in a notebook computer. AMD’s latest RDNA2 graphics architecture is at the core of the platform, which also offers new synergies when paired with the AMD Ryzen 5000 processor.

The AMD Radeon RX 6800M sits at the top of their product stack, and AMD feels it can go toe to toe with NVIDIA’s RTX 3080L. Designed for systems with 145-Watt TDPs and above, the 6800M can push a laptop to its limits. Thanks to AMD SmartShift, which leverages machine learning algorithms to match the workload with the power requirements, the 6800M can be boosted up to 15% by shifting some of the processor power budget over to the GPU.

Thanks to the RDNA2 architecture, the Radeon RX 6800M also gets new features such as hardware ray acceleration, and variable rate shading. The former will improve visuals on games that support it, while the latter will improve performance by reducing the shading effort on portions of the image where it is not important, while keeping the full visual fidelity where the player will notice it. As both features require developer support, this won’t impact all games, but partially thanks to AMD’s win in the console space, features like variable rate shading already are available in some titles.

The Radeon RX 6800M features 40 compute units, with a 2300 MHz frequency. It also is able to be switched off when not in use, which is very important for a notebook, and AMD claims a near 0-Watt power level when in the disabled state. There is also 96 MB of Infinity Cache, which is a global cache for fast data access at lower power levels. In addition, AMD offers Smart Access Memory, which requires a Ryzen 3000 or Ryzen 5000 processor, and allows the CPU to bypass the typical 256 MB limit per transaction.

Although similarly named to the desktop counterpart, the Radeon RX 6800, AMD, like NVIDIA, has to deal with far more constrained thermals in the notebook form factor, which limits TDP much more than the desktop cards, which can draw 300+ Watts on their own. AMD focuses the 6800M on the 145-Watt and over range, and targets the GPU at 2560x1440 resolution panels. The review unit AMD sent is just a 1920x1080 panel though, albeit a 300 Hz refresh rate FreeSync IPS LCD. A device such as this would target the lowest latency for e-sports and the like, since the Radeon RX 6800M is really too much GPU for this resolution as we will see shortly.

As usual, we’ll kick off with some synthetics, then move on to some gaming tests.

3DMark

Futuremark 3DMark Fire Strike

Futuremark 3DMark Sky Diver

UL’s 3DMark offers several workloads with varying levels of complexity. Generally, as the workload gets less complex, it becomes more CPU bound. The ASUS Strix G513QY demolishes the competition in the most complex test of this suite, Fire Strike, but then falls back as the workloads get lighter and the CPU comes more into play.

GFXBench

GFXBench 5.0 Aztec Ruins Normal 1080p Offscreen

GFXBench 5.0 Aztec Ruins High 1440p Offscreen

With version 5.0 of GFXBench, Kishonti added DirectX 12 workloads to their suite, which are the two we run. GFXBench is geared towards lower-powered devices, including tablets, so running them on a GPU such as this is more academic than useful, but as it is part of our normal suite, it was run here as well, and unsurprisingly the Radeon RX 6800M had no issues with such a small amount of work.

Tomb Raider

Tomb Raider - Enthusiast

Although an older game, we keep Tomb Raider around mostly for the integrated graphics solutions, so it should be no surprise that the ASUS G513QY crushes this benchmark. Enjoy the 300 Hz display, because it will get a workout here.

Rise of the Tomb Raider

Rise of the Tomb Raider - Enthusiast

The second installment in the Tomb Raider franchise increased the visuals significantly, which results in a much more stressful test, but here the Radeon RX 6800M does not really do overly great in the DirectX 12 mode. Likely at this resolution, the benchmark is 100% CPU bound.

Shadow of the Tomb Raider

Shadow of the Tomb Raider - Enthusiast

One of the best aspects of the Shadow of the Tomb Raider benchmark is that it outputs the percentage of how often the framerate was GPU bound. It very much confirmed the previous data points here, since at the 1920x1080 resolution with everything set to its highest level in terms of fidelity, the benchmark was GPU bound 0% of the time. Translating that, it means that in fact, the 6800M is 100% CPU bound on these tests.

Strange Brigade

Strange Brigade - Enthusiast

One of the newer titles to our suite is Strange Brigade, and the DirectX 12 title offers a wide range of performance levels, allowing it to be played on anything from integrated graphics, all the way up to top-tier GPUs. Although likely CPU bound again, the 6800M is still very fast.

Shadow of War

Shadow of War - Enthusiast

In a theme that seems to keep repeating itself, the ASUS Strix G513QY continues to not really set itself apart from the competition at this resolution. It still does well but is clearly being held back.

Far Cry 5

Far Cry 5 - Enthusiast

In what may be the most CPU-bound game in the suite, it is probably no surprise to see the ASUS where it is.

UHD Benchmarks

Although the ASUS G513QY is offered with a 2560x1440 panel, and almost certainly that would be the correct one to go with for this system, AMD sent us the 1920x1080 panel for the review, and that is a shame. There is a lot of performance left on the table. To see just how capable the GPU is, it was plugged into an external UHD monitor and some of the workloads were re-run.

ASUS G513QY UHD Resolution Benchmarks

Remember Shadow of the Tomb Raider saying it was GPU bound 0% of the time at 1920x1080? At UHD it was 77% of the time GPU bound. That is more like it. At the highest settings, most of these games can hit 60 FPS average even at 3840x2160, and a game like Shadow of the Tomb Raider would just need some tweaks to the settings to achieve that as well. The Radeon RX 6800M is really one of the first laptop GPUs that could power a UHD panel, and yet the unit it ships in is a 1920x1080 resolution, offering just one quarter of the pixels.

GPU Conclusion

AMD targets the Radeon RX 6800M at 2560x1440, and for good reason. As we have seen, in pretty much every title, it is completely CPU bound at 1920x1080, even with the newest Ryzen 9 5900HX as the processor. The synthetic tests, as well as the UHD resolution results, really prove this point.

Although there is certainly a market where the 1920x1080 resolution is desired for the lowest latency, in this system, that panel is really too low of a resolution for such a powerful GPU, and it becomes wasted money spent.

System Performance Display Analysis
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  • Spunjji - Monday, June 7, 2021 - link

    If you drop the details down a bit and/or set the frame cap close to the lower end of the variable refresh rate, I suspect you could probably even see some (very) slow charging and still get an experience that beats a GTX 1650. All hypothetical though, would love to see someone test this! Reply
  • GeoffreyA - Tuesday, June 8, 2021 - link

    Interesting idea! Reply
  • Srikzquest - Tuesday, June 1, 2021 - link

    I don't understand why there are no webcams with Asus + AMD laptops. This is a bad decision considering more and more companies are allowing remote work and most likely most people are going to use a single laptop for gaming/work/personal use. Reply
  • Srikzquest - Tuesday, June 1, 2021 - link

    Also, though it's primarily a gaming laptop, 16:9 displays should go away for good. Industry pushed these displays on consumers, not that consumers wanted them. Reply
  • Zizy - Wednesday, June 2, 2021 - link

    Well, which variable do you keep fixed?
    Width / screen diagonal? Yes, obviously the screen of 3:2 is greatly superior because it has extra vertical pixels. But most forger that you pay for that with a bigger and heavier laptop (also more expensive) - so, this is a tradeoff. A viable one, but not a clear "16:9 doesn't make sense". Add those extra vertical pixels and your 15" is about as large and heavy as a 17" one.
    If you take screen area as the fixed variable, 3:2 means a better screen for work, worse for movies. And a smaller keyboard.

    This isn't like standalone screens where all aspect ratios cost the same and don't have any negative side effects (once you set screen on your desk you don't tend to move it often)
    Reply
  • m00bee - Tuesday, June 1, 2021 - link

    well at least they include external webcam on my scar 15 AMD 5000 series + Nvidia 3070. The worst part is we can't disable optimus for laptop in 2021, but this laptop is always ready stock in my country, unlike the Lenovo, MSI, Omen (at least in my country). Reply
  • Fulljack - Tuesday, June 1, 2021 - link

    all Asus gaming laptop doesn't have webcam anymore, now. both the that uses Intel or AMD CPU. Reply
  • Srikzquest - Tuesday, June 1, 2021 - link

    The newly released Zephyrus m16 (Intel CPU) has a webcam and 16:10 display. Reply
  • Fulljack - Thursday, June 3, 2021 - link

    a special case, then. but it's not solely AMD issue. as Asus gaming laptop with Intel chip doesn't sport webcam. except than one you mentioned or older model, that is. Reply
  • Retycint - Tuesday, June 1, 2021 - link

    Using a phone as webcam is still far superior to a webcam, though. A webcam is really only useful when travelling, when setting up a phone webcam isn't feasible. There are plenty of webcam apps available, and they can connect over USB or wifi. I really don't see the appeal of a shitty integrated webcam anymore Reply

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