China's Moore Treads MTT S80 graphics card has been tested in a suite of games by TechTuber BullsLab Jay. They say these GPUs only come up for sale occasionally in small batches, so they were fortunate to be able to grab one.
In brief, the 12nm, 4096 core GPU with 16GB of GDDR6 and a TGP of 250W is disappointing in gaming, as it was consistently outgunned by the GT 1030 2GB with a 30W TGP. Moreover, the card seemed to be restricted to DX9 gaming at the time of review (it is advertised as DX11-capable) and its AV1 codec acceleration was also lacking. Last but not least, BullsLab Jay’s investigation shows that the MTT S80 relies on a PowerVR-based GPU architecture – so its mysterious Chunxaio GPU with MUSA cores has now been unmasked.
In the BullsLab Jay video, you can see the Moore Threads graphics card unboxed, tested and disassembled. If you open the link you can watch it with closed-captioned in English, but we have embedded the benchmarks-only video from the TechTuber’s ENG channel below. So you can check out some of the benchmarking action without any fiddling with caption controls.
The 250W MTT S80 has a bulky triple fan cooler, but once removed you can see the PCB is only about two fans in length. Contrast this design with the 30W GT 1030 which can run with a passive heatsink. The other card in the tests, a 120W GTX 1060, offered stratospheric gaming performance compared to the MTT S80, but it's also usually manufactured in single- or two-fan versions.
Getting to the benchmarks, the titles under comparative tests were limited to DX9 games, as that is all that worked on the Moore Threads review card / driver. The architecture is claimed to support DX11, so it looks like some driver updates will be required. In the video's summary charts, the MTT S80 is often half as fast as the aging low-power GT 1030. Only an outlier or two indicates the MTT S80 has some potential.
Speaking of unfulfilled potential, the touted AV1 video codec support claims are also ringing hollow right now. Several tests showed AV1 decoding was tackled by the CPU, however the card was seen to shove VP9 Codec video processing to the GPU in YouTube testing.
BullsLab Jay dug through old Moore Threads China presentations and concluded that the MTT S80 uses Imagination Technologies' PowerVR architecture. Moore Threads have not been very upfront about this, and some had hoped that it was taking a different tack to the Innosilicon Fantasy (Fenghua) line, which also uses PowerVR IP. (And again, it wasn’t very up-front in letting people know about the underlying architecture).
The Moore Threads MTT S80 graphics card sells for the equivalent of approximately $430 in China, bundled with an Asus TUF B660M motherboard. If we take away the cost of the board, the graphics card is roughly $260. Perhaps it will start to show more of its FP32 potential as drivers mature and these PowerVR cards for PCs will become more effective challengers.
Right now, with demonstrably faster GT 1030 selling for $80 or less, the MTT S80 isn't exactly making a good case for itself at more than three times that price. It's possible that performance will improve substantially with driver updates, just as we saw with Intel over the past several months. But of course, that will depend on how much time and effort the company plans to spend on driver improvements, as well as the limitations of the architecture.
