ATI Radeon HD 4580 vs ATI Radeon HD 4450

Comparative analysis of ATI Radeon HD 4580 and ATI Radeon HD 4450 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory.

 

Differences

Reasons to consider the ATI Radeon HD 4580

  • Around 33% higher core clock speed: 796 MHz vs 600 MHz
  • Around 33% higher texture fill rate: 6.37 GTexel / s vs 4.8 GTexel / s
  • Around 50% higher pipelines: 120 vs 80
  • Around 99% better floating-point performance: 191.04 gflops vs 96 gflops
  • Around 73% higher memory clock speed: 1386 MHz vs 800 MHz
Core clock speed 796 MHz vs 600 MHz
Texture fill rate 6.37 GTexel / s vs 4.8 GTexel / s
Pipelines 120 vs 80
Floating-point performance 191.04 gflops vs 96 gflops
Memory clock speed 1386 MHz vs 800 MHz

Reasons to consider the ATI Radeon HD 4450

  • 2.6x lower typical power consumption: 25 Watt vs 65 Watt
Thermal Design Power (TDP) 25 Watt vs 65 Watt

Compare specifications (specs)

ATI Radeon HD 4580 ATI Radeon HD 4450

Essentials

Architecture TeraScale TeraScale
Code name RV635 RV710
Launch date 20 November 2011 18 November 2011
Place in performance rating not rated not rated
Type Desktop Desktop

Technical info

Core clock speed 796 MHz 600 MHz
Floating-point performance 191.04 gflops 96 gflops
Manufacturing process technology 55 nm 55 nm
Pipelines 120 80
Texture fill rate 6.37 GTexel / s 4.8 GTexel / s
Thermal Design Power (TDP) 65 Watt 25 Watt
Transistor count 378 million 242 million

Video outputs and ports

Display Connectors 2x DVI, 1x S-Video 1x DVI, 1x HDMI, 1x DisplayPort

Compatibility, dimensions and requirements

Interface PCIe 2.0 x16 PCIe 2.0 x16
Length 190 mm 168 mm
Supplementary power connectors None None

API support

DirectX 10.1 10.1
OpenGL 3.3 3.3

Memory

Maximum RAM amount 512 MB 512 MB
Memory bandwidth 22.18 GB / s 6.4 GB / s
Memory bus width 128 Bit 64 Bit
Memory clock speed 1386 MHz 800 MHz
Memory type GDDR3 DDR2

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