AMD's upcoming Radeon Instinct MI100 HPC accelerator which would feature the Arcturus GPU has been spotted by Komachi. The existence of the AMD Arcturus GPU was confirmed all the way back in 2018 and two years later, we are finally starting to get details regarding the specifications for AMD's next HPC/AI accelerator.

AMD Arcturus GPU Powered Radeon Instinct MI100 HPC / AI Accelerator Features 32 GB HBM2, 200W TDP In Early Prototypes

The "Arcturus" codename comes from the red giant star which is the brightest in the constellation of Bootes and among the brightest stars that can be seen from space. Similar to Vega and Navi, both of which are also some of the brightest stars visible in the night sky, the naming scheme takes inspiration from the time since RTG was created and the founding father, Raja Koduri (ex AMD RTG President), put a lot of emphasis on bright stars when they first introduced Polaris.

Previously, we have seen support for Arcturus GPU added to HWiNFO, in particular, the XL variant. To our surprise, the new variant that has leaked out 'D34303' is also based on the XL die and would go on to power the Radeon Instinct MI100. The information for this part is based on a test board so it is likely that final specifications would not be the same but here are the key points:

Based on Arcturus XL GPUTest Board has a TDP of 200WUp To 32 GB HBM2 MemoryHBM2 Memory Clocks Reported Between 1000-1200 MHz

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AMD MI100 HBM2 D34303 A1 XL 200W 32GB 1000M.

— 比屋定さんの戯れ言@Komachi (@KOMACHI_ENSAKA) February 7, 2020

The Radeon Instinct MI100 test board has a TDP of 200W and is based on the XL variant of AMD's Arcturus GPU. The card also features 32 GB of HBM2 memory with pin speeds of 1.0 - 1.2 GHz. The MI60 in comparison has 64 CUs with a TDP of 300W while clock speeds are reported at 1200 MHz (Base Clock) while the memory operates at 1.0 GHz along with a 4096-bit bus interface, pumping out 1 TB/s bandwidth. There's a big chance that the final design of the Arcturus GPU could be featuring Samsung's latest HBM2E 'Flashbolt' memory which offers 3.2 Gbps speeds for up to 1.5 Tb/s of bandwidth.

AMD Radeon Instinct Accelerators