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Gpus > ATI > ATI Mobility Radeon HD 4870 GDDR3

ATI Mobility Radeon HD 4870 GDDR3

Brand
Brand
ATI
RAM
RAM
GDDR3
RAM Capacity
RAM Capacity
56.83 GB/s

ATI Mobility Radeon HD 4870 GDDR3 Prices

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ATI Mobility Radeon HD 4870 GDDR3 Key Specifications

Brand
ATI
Model
ATI Mobility Radeon HD 4870 GDDR3
Category
Gpus
Released Date
2009-01-01
RAM
GDDR3
RAM Capacity
56.83 GB/s

ATI Mobility Radeon HD 4870 GDDR3 Technical Specifications

Product Overview

Model
ATI Mobility Radeon HD 4870 GDDR3
Manufacturer
ATI
Market segment
Mobile
Mgpu model number
M98-XT
Category
GPUs

Display

RESOLUTION

Max digital resolution
2560 x 1600
Max monitors supported
Up to 2 displays
Max vga resolution
2048 x 1536
Hdmi support
Present
Hdmi version
1.3

TECHNOLOGIES

Decoders
  • DivX
  • H.264
  • MPEG 1
  • MPEG-2
  • VC-1
Additional features
  • ATI/AMD PowerPlay
  • HDCP
  • High Dynamic Range (HDR) Support
Color rops
16
Max crossfire configuration
2-way

Memory

Size
512 MB
Type
GDDR3
Memory interface width
256 bit
Clock speed
888 MHz
Effective memory clock
1776 MHz
Memory bandwidth
56.83 GB/s

Performance

COMPUTE POWER

Single precision
880 GFLOPS
Double precision
176 GFLOPS

FILL RATES

Texture fill rate
22 Gigatexels/s
Pixel fill rate
8.8 Gigapixels/s

ADDITIONAL PERFORMANCE METRICS

Textures per pixel
Up to 128
Texture fetches per clock cycle
Up to 160

Technology

ARCHITECTURE

Architecture
Unified Superscalar Shader Architecture
Die name
RV770
Transistor count
956 million
Fabrication process
55 nm
Bus interface
PCI-E 2.0 x 16

CORE

Texture units
40
Stream processors
800
Ramdacs
400 MHz

CLOCK FREQUENCIES

Graphics clock
550 MHz

API

Directx support
10.1
Opengl support
3.3
Opencl support
1.0
Shader model
4.1

WINDOWS DRIVER SUPPORT

Windows driver support
  • Windows 7
  • Windows Vista
  • Windows XP

Connectors

Size
512 MB
Type
GDDR3
Memory interface width
256 bit
Clock speed
888 MHz
Effective memory clock
1776 MHz
Memory bandwidth
56.83 GB/s
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