Sapphire gave the Radeon R9 270X some Tri-X treatment, and a high factory-overclock, with its Black Diamond Edition graphics card, which is exclusive to the Greater China region. The card features the same triple-fan Tri-X cooling solution with back-plate as some R9 280X graphics cards, featuring a meaty aluminium fin heatsink that's ventilated by a trio of fans. It offers a factory core overclock of 1100 MHz, and a memory overclock of 6.00 GHz (GDDR5-effective); compared to AMD reference speeds of 1000 MHz core, 1050 MHz boost, and 5.60 GHz memory. Other features include temperature-activated color LED logo badge, and dual-BIOS with UEFI modules. Based on the 28 nm "Curacao" silicon, the Radeon R9 270X features 1,280 stream processors, 80 TMUs, 32 ROPs, and a 256-bit wide GDDR5 memory interface, holding 2 GB of memory.