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63.7×2: GDDR3 256×2: 2000 400.0 250 2-way Crossfire: $339 Radeon HD 4870 X2 August 12, 2008 R700 (2xRV770 XT) 750 900 12×2: 30×2: 1024×2: 115.2×2: GDDR5 2400 480.0 286 $449 Model 4 Launch Code name Fab (nm) Transistors (million) Die size (mm 2) Bus interface Clock rate Core config 1 Fillrate Memory 2 Processing power (GFLOPS) TDP 3 (Watts ...
The R420 GPU, developed by ATI Technologies, was the company's basis for its 3rd-generation DirectX 9.0/OpenGL 2.0-capable graphics cards.Used first on the Radeon X800, the R420 was produced on a 0.13 micrometer (130 nm) low-K photolithography process and used GDDR-3 memory.
The R520 is the foundation for a line of DirectX 9.0c and OpenGL 2.0 3D accelerator X1000 video cards. It is ATI's first major architectural overhaul since the R300 and is highly optimized for Shader Model 3.0. The Radeon X1000 series using the core was introduced on October 5, 2005, and competed primarily against Nvidia's GeForce 7 series.
The Radeon R700 is the engineering codename for a graphics processing unit series developed by Advanced Micro Devices under the ATI brand name. The foundation chip, codenamed RV770, was announced and demonstrated on June 16, 2008 as part of the FireStream 9250 and Cinema 2.0 initiative launch media event, [5] with official release of the Radeon HD 4800 series on June 25, 2008.
Unified Video Decoder (UVD2.2) [8] is present on the dies of all products and supported by AMD Catalyst 9.11 and later through DXVA 2.0 on Microsoft Windows and VDPAU on Linux and FreeBSD. The free and open-source graphics device driver#ATI/AMD also support UVD.
HD 6850 has 960 stream processors at 775 MHz, a 256-bit memory interface and 1 GB GDDR5 DRAM at 1 GHz with maximum power draw of 127 W. Compared to competitors, performance falls in line with the 1 GB cards of the Nvidia GeForce GTX 460. Compared to predecessor graphics of the Radeon 5800 series, the 6850 is significantly faster than the Radeon ...
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