Tahiti GPU Notes Architecture Codename: Southern Islands OpenCL 1.2 Vulkan 1.2 Shader Model 5.1 Card Notes Rebranded HD 7950 The card's dimensions are 275 mm x 109 mm x 36 mm, and it features a dual-slot cooling solution. Radeon R9 280 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. Display outputs include: 1x DVI, 2x HDMI, 1x DisplayPort. The GPU is operating at a frequency of 827 MHz, which can be boosted up to 933 MHz, memory is running at 1250 MHz (5 Gbps effective).īeing a dual-slot card, the AMD Radeon R9 280 draws power from 1x 6-pin + 1x 8-pin power connector, with power draw rated at 200 W maximum. AMD has paired 3,072 MB GDDR5 memory with the Radeon R9 280, which are connected using a 384-bit memory interface. It features 1792 shading units, 112 texture mapping units, and 32 ROPs. Unlike the fully unlocked Radeon HD 7970, which uses the same GPU but has all 2048 shaders enabled, AMD has disabled some shading units on the Radeon R9 280 to reach the product's target shader count. The Tahiti graphics processor is a large chip with a die area of 352 mm² and 4,313 million transistors.
Built on the 28 nm process, and based on the Tahiti. Even though it supports DirectX 12, the feature level is only 11_1, which can be problematic with newer DirectX 12 titles. The Radeon R9 280X was a performance-segment graphics card by AMD, launched on October 8th, 2013. Built on the 28 nm process, and based on the Tahiti graphics processor, in its Tahiti PRO3 variant, the card supports DirectX 12. The Radeon R9 280 was a performance-segment graphics card by AMD, launched on March 4th, 2014.
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