GPU Performance: Synthetic Benchmarks

AMD's Phoenix SoCs include an integrated GPU with a microarchitectural update over the one in the Rembrandt-R SoCs. The new RDNA3 microarchitecture is present in the Ryzen 7 7840HS in the form of the Radeon 780M. With 12 CUs and 768 shader units clocked at 2.7 GHz, AMD claims that the GPU should be capable of playing virtually any modern game at Full HD resolutions.

For full-blown desktop systems or mini-PCs targeting the gaming market, we look at gaming workloads. However, for general-purpose mini-PC models like the GEEKOM AS 6, we restrict ourselves to a series of canned benchmarks from Kishonti and Futuremark / UL. Prior to that, a look at the capabilities of the GPU via GPU-Z is warranted.


(From L to R: Default BIOS Settings, UMA Buffer Size set to 16G, UMA Buffer Size set to Auto)

Rembrandt-R's Radeon 680M had already achieved an industry-first by integrating hardware-accelerated ray tracing, and the Radeon 780M in Phoenix builds upon that. There are some improvements in the media engine too (such as AV1 encode support), but those are not revealed in the GPU-Z screenshot. The remaining subsections below look into the performance aspects.

GFXBench

The DirectX 12-based GFXBench tests from Kishonti are cross-platform, and available all the way down to smartphones. As such, they are not very taxing for discrete GPUs and modern integrated GPUs. We processed the offscreen versions of the 'Aztec Ruins' benchmark.

GFXBench 5.0: Aztec Ruins Normal 1080p Offscreen

GFXBench 5.0: Aztec Ruins High 1440p Offscreen

At 1080p, the souped-up ASRock Industrial Raptor Lake-P NUC has a slight edge of around 3% in the frame rate, but the AMD-based systems take back the crown at 1440p. The GTR7 has a 7% edge over the GEEKOM AS 6, which by itself has a 6% edge over the top RPL-P system.

UL 3DMark

Four different workload sets were processed in 3DMark - Fire Strike, Time Spy, Night Raid, and Wild Life.

3DMark Fire Strike

The Fire Strike benchmark has three workloads. The base version is meant for high-performance gaming PCs. It uses DirectX 11 (feature level 11) to render frames at 1920 x 1080. The Extreme version targets 1440p gaming requirements, while the Ultra version targets 4K gaming system, and renders at 3840 x 2160. The graph below presents the overall score for the Fire Strike Extreme and Fire Strike Ultra benchmark across all the systems that are being compared.

UL 3DMark - Fire Strike Workloads

Rembrandt-R already had an edge over RPL-P in these workloads, and Phoenix only cements this position further. The GTR7 shows a 25 - 30% improvement over the GEEKOM AS 6 behind it - a result of the microarchitectural improvements as well as higher power budget.

3DMark Time Spy

The Time Spy workload has two levels with different complexities. Both use DirectX 12 (feature level 11). However, the plain version targets high-performance gaming PCs with a 2560 x 1440 render resolution, while the Extreme version renders at 3840 x 2160 resolution. The graphs below present both numbers for all the systems that are being compared in this review.

UL 3DMark - Time Spy Workloads

The observations made in Fire Strike workloads hold true for Time Spy also. The advantage for GTR7 over the 42W Ryzen 7 7735U in the ASRock Industrial 4X4 BOX-7735U is around 25%.

3DMark Wild Life

The Wild Life workload was initially introduced as a cross-platform GPU benchmark in 2020. It renders at a 2560 x 1440 resolution using Vulkan 1.1 APIs on Windows. It is a relatively short-running test, reflective of mobile GPU usage. In mid-2021, UL released the Wild Life Extreme workload that was a more demanding version that renders at 3840 x 2160 and runs for a much longer duration reflective of typical desktop gaming usage.

UL 3DMark - Wild Life Workloads

3D Mark Wild Life was one of the GPU workloads where RPL-P's iGPU had performed better than the Radeon 680M in the Rembrandt-R systems. The GTR7's Radeon 780M wrests the crown from the ASRock Industrial NUC BOX-1360P/D5, showing a 7% increase in performance at 1440p and 17% increase at 2160p. This is doubtless due to the improved microarchitecture and higher power budget.

3DMark Night Raid

The Night Raid workload is a DirectX 12 benchmark test. It is less demanding than Time Spy, and is optimized for integrated graphics. The graph below presents the overall score in this workload for different system configurations.

UL 3DMark Fire Strike Extreme Score

The GTR7 is comfortable on top when systems with iGPUs are considered, with a 20% advantage over the GEEKOM AS 6 (which has a 20% advantage over the best that RPL-P has to offer).

3DMark Port Royal

UL introduced the Port Royal ray-tracing benchmark as a DLC for 3DMark in early 2019. The scores serve as an indicator of how the system handles ray-tracing effects in real-time.

UL 3DMark Port Royal Score

The GTR7 has a 30%+ advantage over the GEEKOM AS 6, thanks to improvements in the ray tracing engine, as well as faster iGPU clocks.

System Performance: Application-Specific Workloads Workstation Performance - SPECworkstation 3.1
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  • lemurbutton - Thursday, August 24, 2023 - link

    You can get a M2 Mini for $499 on sale. It's superior to this in just about every way. Even if you upgrade the RAM for $200, it's still better than this. Faster CPU, faster GPU, has AI inference, faster RAM, significantly lower power requirements.
  • meacupla - Thursday, August 24, 2023 - link

    Well, yeah, obviously the $499 M2 mini is cheaper.
    It's a weaker PC than this, in every single metric.
    It only has 8GB of RAM, 128GB SSD, both of which cannot be upgraded later on.
    It's CPU and GPU are weaker than a 7840HS. To top it off M2 runs less efficiently and hotter.

    Which is exactly why no one is buying it, and Apple had to halt M2 production.
  • ingwe - Thursday, August 24, 2023 - link

    The mac mini has a 256GB SSD. Probably doesn't really need the ram upgrade. But...upgrading the SSD to 1 TB is $400. And not sure what you are saying about the M2 running less efficiently. Mac Mini is a fine option imo. But I would much rather have the GTR7 for a lot of reasons. Would be great for a streaming PC and console replacement for older games.
  • PixyMisa - Thursday, August 24, 2023 - link

    You can buy two 4TB SSDs for $400.
  • Benjiro29 - Monday, November 6, 2023 - link

    Hell, you can buy:

    * 8TB SSD for 320 Euro now. Or 2 * NVME for 320. Apple asks for 256GB "upgrade": 230 Euro
    * 8GB DDR5 5600 Memory costs for 25 Euro. Apple asks for 8GB "upgrade: 230 Euro.

    Insane ...that memory that Apple uses is just standard DDR5 memory, nothing special about it beyond being placed in quad channel configuration.
  • qwertymac93 - Thursday, August 24, 2023 - link

    Does it run Windows 11 pro?
  • bji - Thursday, August 24, 2023 - link

    Why in the world would anyone *want to* though?
  • TheinsanegamerN - Thursday, August 24, 2023 - link

    Point taken, but so long as apple keeps doing its walled garden BS people will continue to rely on other OSes.
  • ActionJ26 - Friday, August 25, 2023 - link

    Why would anyone want to use iOS. My last company did and compared to Windows it is trash. Never thought I would say that. Some much of the functionality requires store bought add ones.
  • darkswordsman17 - Friday, August 25, 2023 - link

    Er, Mac Mini runs MacOS, not iOS.

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