AMD Radeon Pro W6800X Duo

AMD’s Dual-GPU, Apple-Only Graphics Card Bests RTX 4080 in Head-to-Head PC Matchup

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It’s a pity that the Radeon Pro W6800X Duo didn’t make it outside Apple’s ecosystem. Given its latest performance show, the dual Navi 21-based offering from AMD would rival the best graphics cards on the market.

The Radeon Pro W6800X Duo features not one but two Navi 21 (Sienna Cichlid) dies. They communicate with each other via AMD’s Infinity Fabric interconnect. Unfortunately, AMD didn’t let the Radeon Pro W6800X Duo leverage the full Navi 21 silicon. Instead, the chipmaker disabled 20 CUs (compute units) from each Navi 21, leaving the Radeon Pro W6800X Duo with just 60 CUs or 3,840 SPs (stream processors). Each Navi 21 dies also arrives with 32GB of 16 Gbps GDDR6 memory across a 256-bit memory interface and 128MB of Infinity Cache.

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