iXBT Labs - Computer Hardware in Detail

Platform

Video

Multimedia

Mobile

Other

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

Specifications, architecture, technologies, etc.

June 22, 2009



<< Previous page

     Next page >>

Other AMD(ATI) GPU references

R(V)7XX GPU specifications


Code name RV770 RV730 RV710 RV790 RV740
Baseline review Here Here Here Here
Process technology, nm 55 40
Transistors, M 956 514 242 959 826
Unified processors 160*5 64*5 16*5 160*5 128*5
Texture units 40 32 8 40 32
Blending units 16 8 4 16 16
Memory bus 256 128 64 256 128
Memory types DDR, DDR2, GDDR3, GDDR4, GDDR5
System bus PCI-Express 2.0 16x
RAMDAC 2 x 400MHz
Interfaces TV-Out
TV-In (video capture chip required)
2 x Dual Link DVI
HDMI
DisplayPort
Vertex shaders 4.1
Pixel shaders 4.1
Pixel precision FP32/FP64
Vertex precision FP32/FP64
Texture component formats FP32, FP16
I8
DXTC, S3TC
3Dc
Rendering formats FP32 and FP16
I8
I10 (RGBA 10:10:10:2)
etc.
MRT Yes
Antialiasing 2x-8x MSAA
CFAA 24x
Z generation 2x in Z-only mode

R(V)7XX-based reference card specifications


Graphics card GPU
Bus
ALU/TMU Core clock (MHz) Memory frequency (MHz) Memory capacity (MB) Memory bandwidth (GB)
bit
Texel rate (Mtex) Fill rate (Mpix)
RADEON HD 4550 RV710
PEG16x
80/8 600 800(1600) 256/512 DDR3 12.8
(64)
4800 2400
RADEON HD 4650 RV730
PEG16x
320/32 600 500(1000) 512 DDR2 16.0
(128)
19200 4800
RADEON HD 4670 RV730
PEG16x
320/32 750 1000(2000) 512 GDDR3 32.0
(128)
24000 6000
RADEON HD 4850 RV770
PEG16x
800/40 625 1000(2000) 512 GDDR3 64.0
(256)
25000 10000
RADEON HD 4870 RV770
PEG16x
800/40 750 900(3600) 512 GDDR5 115.0
(256)
30000 12000
RADEON HD 4850 X2 2xRV770
PEG16x
2x(800/40) 625 1000(2000) 2x1024 GDDR3 2x64.0
(2x256)
50000 20000
RADEON HD 4870 X2 2xRV770
PEG16x
2x(800/40) 750 900(3600) 2x1024 GDDR5 2x115.0
(2x256)
60000 24000
RADEON HD 4770 RV740 PEG16x 640/32 750 800(3200) 512 GDDR5 51.2 (128) 24000 12000
RADEON HD 4890 RV790 PEG16x 800/40 850 975(3900) 1024 GDDR5 125.0 (256) 34000 13600

The RV770, RADEON HD 4800 series

  • Codename: RV770
  • Process technology: 55nm
  • 956 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
  • 256-bit memory bus: Four 64-bit controllers supporting GDDR3/GDDR5
  • Core clock: 625-750 MHz
  • 10 SIMD cores, including 800 scalar floating-point ALUs (integer and floating-point formats, support for FP32 and FP64 in compliance with IEEE 754)
  • 10 enlarged texture units supporting FP16 and FP32 formats
  • 40 texture address units
  • 160 texture fetch units
  • 40 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
  • 16 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 16 samples per cycle (including MSAA 2x/4x and FP16 buffers), 64 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 4870 specifications

  • Core clock: 750 MHz
  • Unified processors: 800
  • 40 texture units, 16 blending units
  • Effective memory frequency: 3600 MHz (4*900 MHz)
  • Memory type: GDDR5
  • Memory: 512 MB
  • Memory bandwidth: 115 GB/sec
  • Maximum theoretical fillrate: 12.0 gigapixel per second
  • Theoretical texture sampling rate: 30.0 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: up to 160W (two 6-pin connectors)
  • Two-slot design
  • MSRP: $299

RADEON HD 4850 specifications

  • Core clock: 625 MHz
  • Unified processors: 800
  • 40 texture units, 16 blending units
  • Effective memory frequency: 2000 MHz (2*1000 MHz)
  • Memory type: GDDR3
  • Memory: 512 MB
  • Memory bandwidth: 64 GB/sec
  • Maximum theoretical fillrate: 10.0 gigapixel per second
  • Theoretical texture sampling rate: 25.0 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: up to 110W (one 6-pin connector)
  • Single-slot design
  • MSRP: $199

Write a comment below. No registration needed!


Next page >>



blog comments powered by Disqus

  Most Popular Reviews More    RSS  

AMD Phenom II X4 955, Phenom II X4 960T, Phenom II X6 1075T, and Intel Pentium G2120, Core i3-3220, Core i5-3330 Processors

Comparing old, cheap solutions from AMD with new, budget offerings from Intel.
February 1, 2013 · Processor Roundups

Inno3D GeForce GTX 670 iChill, Inno3D GeForce GTX 660 Ti Graphics Cards

A couple of mid-range adapters with original cooling systems.
January 30, 2013 · Video cards: NVIDIA GPUs

Creative Sound Blaster X-Fi Surround 5.1

An external X-Fi solution in tests.
September 9, 2008 · Sound Cards

AMD FX-8350 Processor

The first worthwhile Piledriver CPU.
September 11, 2012 · Processors: AMD

Consumed Power, Energy Consumption: Ivy Bridge vs. Sandy Bridge

Trying out the new method.
September 18, 2012 · Processors: Intel
  Latest Reviews More    RSS  

i3DSpeed, September 2013

Retested all graphics cards with the new drivers.
Oct 18, 2013 · 3Digests

i3DSpeed, August 2013

Added new benchmarks: BioShock Infinite and Metro: Last Light.
Sep 06, 2013 · 3Digests

i3DSpeed, July 2013

Added the test results of NVIDIA GeForce GTX 760 and AMD Radeon HD 7730.
Aug 05, 2013 · 3Digests

Gainward GeForce GTX 650 Ti BOOST 2GB Golden Sample Graphics Card

An excellent hybrid of GeForce GTX 650 Ti and GeForce GTX 660.
Jun 24, 2013 · Video cards: NVIDIA GPUs

i3DSpeed, May 2013

Added the test results of NVIDIA GeForce GTX 770/780.
Jun 03, 2013 · 3Digests
  Latest News More    RSS  

Platform  ·  Video  ·  Multimedia  ·  Mobile  ·  Other  ||  About us & Privacy policy  ·  Twitter  ·  Facebook


Copyright © Byrds Research & Publishing, Ltd., 1997–2011. All rights reserved.