It features 1024 shading units, 64 texture mapping units, and 32 ROPs. Unlike the fully unlocked Radeon HD 7870 GHz Edition, which uses the same GPU but has all 1280 shaders enabled, AMD has disabled some shading units on the Radeon HD 7850 to reach the product's target shader count. The Pitcairn graphics processor is an average sized chip with a die area of 212 mm² and 2,800 million transistors. Even though it supports DirectX 12, the feature level is only 11_1, which can be problematic with newer DirectX 12 titles. Built on the 28 nm process, and based on the Pitcairn graphics processor, in its Pitcairn PRO variant, the card supports DirectX 12. The Radeon HD 7850 was a performance-segment graphics card by AMD, launched on March 5th, 2012.
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