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Sapphire HD 4890 - Bjorn3D.com
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iXBT Labs - i3DSpeed, January 2010 - ATI RADEON HD 4890 1024MB DDR5 (850/850/3900 MHz)
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I got a brand new ATI Radeon HD 4890! : r/Amd
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The Cards and The Test - ATI Radeon HD 4890 vs. NVIDIA GeForce GTX 275
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