Graphics Performance: Vega 8 in Mobile

The world of mobile graphics is somewhat of a wild west right now. Both AMD and Intel equip all their mobile processors with, at least physically, the same configuration from top to bottom in their stacks. Intel has a base 96-EU Xe graphics solution that goes in all of its 15 W to 65 W mobile processors, while AMD has a Vega 8 solution that also goes from 15 W to 45 W and above. That means the graphics performance of these parts matters a lot on the processor performance being used, how well the power is managed between the CPU and GPU, but also the memory solutions.

This is where the Vega 8 inside the Ryzen 7 5800H might falter. The best design for this processor would be to enable LPDDR4X memory, with a 68.2 GB/s bandwidth. That configuration is typically used for super thin and light ultrabooks with U-series processors. The bigger the system, the more likely you are to end up with regular DDR4-3200, which in dual channel mode goes up to 51.2 GB/s bandwidth. This is also because most big H-series systems come with discrete graphics, and so DDR4 vs LPDDR4x is more a discussion about cost.

That being said, the Vega 8 graphics solution typically has to game at lower resolutions and quality settings, where CPU performance matters more. Between the synthetic and real-world gaming tests, this could be interesting.

Futuremark 3DMark Fire StrikeFuturemark 3DMark Sky DiverFuturemark 3DMark Cloud GateFuturemark 3DMark Ice Storm UnlimitedStrange Brigade - ValueTomb Raider - ValueRise of the Tomb Raider - Value

Overall we’re seeing small improvements compared to Zen 2 processors with integrated graphics, however the Vega 8 solution still sits behind the Intel Core i7-1185G7, which is usually equipped with LPDDR4X.

System Performance: Balanced and Performance Display, Battery Life, and Charging
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  • TheinsanegamerN - Wednesday, October 20, 2021 - link

    Good to see another company jump on the "use a 45w ryzen chip without a dGPU" train, letting that iGPU stretch its legs a bit mroe. Shame it limits TDP so much, the mechrevio1 is a similar laptop that doesnt do that, rather allows up to 54 watt. But the huwaei has that gorgeous 16:10 display.....

    We need mroe of these types of laptops, and less of the dell/HP/lenovo garbage weve been getting.
  • at_clucks - Thursday, October 21, 2021 - link

    We would have had a Kirin M1-like CPU soon if Huawei wasn't targeted by the restrictions on using US tech. Somehow those restrictions don't apply when buying straight up from Qualcomm or AMD, only when competing with them.

    So while I love to see mobile devices based on AMD CPUs, I would very much have loved even more to see a proper ARM SoC in there, giving M1 a run for its money. SOmething that's not tied to MacOS for example. And no, I don't consider ARM Surfaces to be that.
  • Arsenica - Thursday, October 21, 2021 - link

    Nah, Huawei only licensed IP cores straight from ARM.

    At most they would have an Exynos 2000 equivalent (Cortex X1 and Mali G78 cores).
  • blanarahul - Wednesday, October 20, 2021 - link

    "I’m a fan of notebooks that promise good power and battery life at the expense of graphics."

    "I have some software in my daily toolset that doesn’t work on either, so until then, I’m still focused on devices built with AMD or Intel."

    Cannot agree more. I recently got a gaming notebook and while having a discrete GPU is nice, having a modern processor that is allowed to consume up to 30-40 watts and strech its legs makes a world of difference in terms of responsiveness in the applications I need to use on a day to day basis (which cannot run on Linux or Mac).

    I wonder what difference Alder Lake will make with its 6 P + 8 E cores design to responsiveness and battery life.
  • Alistair - Wednesday, October 20, 2021 - link

    and yet I've been trying to sell my top of the line CPU laptop (Ryzen 4800H) for $650 (it has a 1650 ti) and you'll find nobody wants it, I think gaming has taken over the vast majority of the market, CPU aficionados tend to have less computer knowledge, and think any Intel quad core is the same as an AMD 8 core
  • Mccaula718 - Wednesday, October 20, 2021 - link

    Your Zen 2 cpu is not top of the line
  • at_clucks - Thursday, October 21, 2021 - link

    That's not really the problem, it's close enough to it when it comes to AMD's mobile lineup. But most people have no brand awareness when it comes to AMD, and Intel has a much more powerful brand that will attract regardless of actual performance standing, even price. And futhermore, these days a 5 year old decent laptop still does the job fine for regular day to day things. So the market for midrange new laptops (meaning not cheap low end, not superfast high end) might be smallish.

    You can't get a proper PC GPU so you go for the next best with a mobile GPU where the whole device is still cheaper than the PC GPU. Or you get a cheap laptop that does browsing and the likes. The offer presented above is smack in the middle.
  • Alistair - Thursday, October 21, 2021 - link

    the 4800h was the best CPU you could buy a year ago, now it is second best, yes it is
  • blanarahul - Thursday, October 21, 2021 - link

    In my entire social circle, I am the only one who knows AMD makes excellent CPUs and GPUs as well. They all think Intel is the only one who makes CPUs (for laptops) and Nvidia is the only one that makes dGPUs. They find AMD to be "sketchy". It is upsetting but it is what it is.

    AMD needs to succeed in consoles and workstation/server market because as much as I hate it, Windows + Intel + Nvidia is just too powerful a combo (in terms of market presence) in the mainstream consumer market.
  • Alistair - Thursday, October 21, 2021 - link

    exactly, that's the problem, someone actually thinks the 11400h is faster than the 4800h for example :/

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