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.

ATI Radeon HD 4580

ATI Radeon HD 4450

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