9 Radeon HD 6850 Compared The Radeon HD 6850s are based on Barts, a GPU which is a sort of low-cost version of Cypress, used in the Radeon HD 5800s. A few small improvements have however been made, especially in terms of tessellation performance and support for DisplayPort 1.2 and MVC hardware decoding, the format used for 3D Blu-rays. Barts is made up of 224 vec5 processing units (1120 ‘cores’) divided into 14 blocks, two of which are disabled in the version used for the Radeon HD 6850, bringing the number of vec5 processing units down to 192 (960 ‘cores’). The processing units are supplied by a 256-bit GDDR5 memory controlller, which has been simplified to reduce costs and which hasn’t been designed to clock very high. http://www.behardware.com/articles/8...-hd-6850s.html |
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