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AMD(ATI) RADEON R(V)7XX Reference

Specifications, architecture, technologies, etc.

June 22, 2009



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The RV730, RADEON HD 4600 series

  • Codename: RV730
  • Process technology: 55nm
  • 514 million transistors
  • Unified architecture with an array of common processors for streaming processing of vertices and pixels, as well as other data
  • Hardware support for DirectX 10.1, including new Shader Model 4.1, geometry generation, and stream output
  • 128-bit memory bus: two 64-bit controllers supporting DDR2/DDR3/GDDR2/GDDR3 memory
  • Core clock: 600-750 MHz
  • 8 SIMD cores, including 320 scalar floating-point ALUs (integer and floating-point formats, support for FP32 and FP64 in compliance with IEEE 754)
  • 8 enlarged texture units supporting FP16 and FP32 formats
  • 32 texture address units
  • 128 texture fetch units
  • 32 bilinear filtering units that can filter FP16 textures at full speed, trilinear and anisotropic filtering for all texture formats
  • Dynamic branching in pixel and vertex shaders
  • 8 ROPs supporting antialiasing with programmable sample patterns (over 16 samples per pixel), including FP16 or FP32 formats of the frame buffer. Peak performance is up to 8 samples per cycle (including MSAA 2x/4x and FP16 buffers), 32 samples per cycle in Z only mode
  • Writing results up to eight frame buffers simultaneously (MRT)
  • Integrated support for two RAMDACs, two Dual Link DVIs, HDMI, HDTV, DisplayPort

RADEON HD 4670 specifications

  • Core clock: 750 MHz
  • Unified processors: 320
  • 32 texture units, 8 blending units
  • Effective memory frequency: 2000 MHz (2*1000 MHz)/1800 MHz
  • Memory type: GDDR3/DDR3
  • Memory: 512/1024 MB
  • Memory bandwidth: 32.0/28.8 GB/sec
  • Maximum theoretical fillrate: 6.0 gigapixel per second
  • Theoretical texture sampling rate: 24.0 gigatexel per second
  • Two CrossFireX connectors
  • PCI Express 2.0 x16
  • 2 x DVI-I Dual Link, 2560x1600 video output
  • TV-Out, HDTV-Out, support for HDCP, HDMI, DisplayPort
  • Power consumption: below 75W (without additional power connectors)
  • Single-slot design
  • MSRP: $79

RADEON HD 4650 specifications

  • Core clock: 600 MHz
  • Unified processors: 320
  • 32 texture units, 8 blending units
  • Effective memory frequency: 1000 MHz (2*500 MHz)
  • Memory type: DDR2
  • Memory: 512 MB
  • Memory bandwidth: 16.0 GB/sec
  • Maximum theoretical fillrate: 4.8 gigapixel per second
  • Theoretical texture sampling rate: 19.2 gigatexel per second
  • Two CrossFireX connectors
  • PCI Express 2.0 x16
  • 2 x DVI-I Dual Link, 2560x1600 video output
  • TV-Out, HDTV-Out, support for HDCP, HDMI, DisplayPort
  • Power consumption: below 60W (without additional power connectors)
  • Single-slot design
  • MSRP: $69

The RV710, RADEON HD 4500 series

  • Codename: RV710
  • Process technology: 55nm
  • 242 million transistors
  • Unified architecture with an array of common processors for streaming processing of vertices and pixels, as well as other data
  • Hardware support for DirectX 10.1, including new Shader Model 4.1, geometry generation, and stream output
  • 64-bit memory bus: one 64-bit controller supporting DDR2/DDR3/GDDR2/GDDR3 memory
  • Core clock: 600 MHz
  • 2 SIMD cores, including 80 scalar floating-point ALUs (integer and floating-point formats, support for FP32 and FP64 in compliance with IEEE 754)
  • 2 enlarged texture units supporting FP16 and FP32 formats
  • 8 texture address units
  • 32 texture fetch units
  • 8 bilinear filtering units that can filter FP16 textures at full speed, trilinear and anisotropic filtering for all texture formats
  • Dynamic branching in pixel and vertex shaders
  • 4 ROPs supporting antialiasing with programmable sample patterns (over 16 samples per pixel), including FP16 or FP32 formats of the frame buffer. Peak performance is up to 4 samples per cycle (including MSAA 2x/4x and FP16 buffers), 16 samples per cycle in Z only mode
  • Writing results up to eight frame buffers simultaneously (MRT)
  • Integrated support for two RAMDACs, two Dual Link DVIs, HDMI, HDTV, DisplayPort

RADEON HD 4550 specifications

  • Core clock: 600 MHz
  • Unified processors: 80
  • 8 texture units, 4 blending units
  • Effective memory frequency: 1600 MHz (2*800 MHz)
  • Memory type: DDR3
  • Memory: 256/512 MB
  • Memory bandwidth: 14.4 GB/sec
  • Maximum theoretical fillrate: 2.4 gigapixel per second
  • Theoretical texture sampling rate: 4.8 gigatexel per second
  • PCI Express 2.0 x16
  • 2 x DVI-I Dual Link, 2560x1600 video output
  • TV-Out, HDTV-Out, support for HDCP, HDMI, DisplayPort
  • Power consumption: below 25W (without additional power connectors)
  • Single-slot design, passive cooling
  • MSRP: $29-35

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