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In all kinds of signs, Arcturus is likely to belong to the Vega architecture acceleration, but it is a new upgrade version that will be used for professional cards.
When AMD announced the new architecture of RDNA, it was clearly stated.RDNA, GCN will continue to coexist for a while, where RDNA is used for game cards and GCN Vega is used for workstations.serverProfessional cards for high performance computing systems.
Although the Vega core is not a successful game card, it is still very successful in the professional field. AMD's current professional cards, such as the Radeon Pro Vega II and the Radeon Instinct MI60/MI50, use the Vega 20 core and are the world's first 7nm GPUs.appleIt is favored by big customers such as Google, so it is reasonable to continue to use it.
The change of Arcturus is not small. The driver added 102 patches and 100491 lines of code for it. In-depth mining found that it does not have a 2D or 3D display engine. It is obviously a pure computing accelerator card, which will be used for Radeon Instinct series.
At the same time, Arcturus lists three device IDs in the driver, which should correspond to three different model versions.
The Radeon Instinct series currently has three different cores, Fiji, Polaris and Vega, and the old Fiji is time to eliminate. The arrival of Arcturus is just the right time.
In addition, we have heard of an unpublished AMD GPU ID.GFX908It is probably Arcturus.
Because we know that GFX10 corresponds to Navi, GFX9 corresponds to Vega, and Vega 20 has two versions of GFX906 and GFX907 respectively, so GFX908 is almost necessarily an upgraded version of Vega 20.
The SIGGRAPH 2019 professional graphics conference will be held from July 28th to August 1st, which is the perfect moment for the release of the Arcturus professional card.