ATI Radeon HD 4770 vs ATI Radeon HD 4550

Comparative analysis of ATI Radeon HD 4770 and ATI Radeon HD 4550 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

ATI Radeon HD 4770

ATI Radeon HD 4550

Differences

Reasons to consider the ATI Radeon HD 4770

Videocard is newer: launch date 6 month(s) later
Around 25% higher core clock speed: 750 MHz vs 600 MHz
5x more texture fill rate: 24 GTexel / s vs 4.8 GTexel / s
8x more pipelines: 640 vs 80
10x better floating-point performance: 960.0 gflops vs 96 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 40 nm vs 55 nm
2x more maximum memory size: 512 MB vs 256 MB
2.4x more memory clock speed: 3200 MHz vs 1310 MHz
3.8x better performance in PassMark - G3D Mark: 892 vs 236
15.4x better performance in GFXBench 4.0 - T-Rex (Frames): 8618 vs 558
15.4x better performance in GFXBench 4.0 - T-Rex (Fps): 8618 vs 558

Specifications (specs)
Launch date	28 April 2009 vs 30 September 2008
Core clock speed	750 MHz vs 600 MHz
Texture fill rate	24 GTexel / s vs 4.8 GTexel / s
Pipelines	640 vs 80
Floating-point performance	960.0 gflops vs 96 gflops
Manufacturing process technology	40 nm vs 55 nm
Maximum memory size	512 MB vs 256 MB
Memory clock speed	3200 MHz vs 1310 MHz
Benchmarks
PassMark - G3D Mark	892 vs 236
GFXBench 4.0 - T-Rex (Frames)	8618 vs 558
GFXBench 4.0 - T-Rex (Fps)	8618 vs 558

Reasons to consider the ATI Radeon HD 4550

3.2x lower typical power consumption: 25 Watt vs 80 Watt
4x better performance in PassMark - G2D Mark: 429 vs 107

Specifications (specs)
Thermal Design Power (TDP)	25 Watt vs 80 Watt
Benchmarks
PassMark - G2D Mark	429 vs 107

Compare benchmarks

GPU 1: ATI Radeon HD 4770
GPU 2: ATI Radeon HD 4550

PassMark - G3D Mark

GPU 1

GPU 2

892

236

PassMark - G2D Mark

GPU 1

GPU 2

107

429

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

8618

558

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

8618

558

Name	ATI Radeon HD 4770	ATI Radeon HD 4550
PassMark - G3D Mark	892	236
PassMark - G2D Mark	107	429
GFXBench 4.0 - T-Rex (Frames)	8618	558
GFXBench 4.0 - T-Rex (Fps)	8618	558

Compare specifications (specs)

	ATI Radeon HD 4770	ATI Radeon HD 4550
Essentials
Architecture	TeraScale	TeraScale
Code name	RV740	RV710
Launch date	28 April 2009	30 September 2008
Launch price (MSRP)	$109	$59
Place in performance rating	758	759
Type	Desktop	Desktop
Technical info
Core clock speed	750 MHz	600 MHz
Floating-point performance	960.0 gflops	96 gflops
Manufacturing process technology	40 nm	55 nm
Pipelines	640	80
Texture fill rate	24 GTexel / s	4.8 GTexel / s
Thermal Design Power (TDP)	80 Watt	25 Watt
Transistor count	826 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	203 mm	168 mm
Supplementary power connectors	1x 6-pin	None
API support
DirectX	10.1	10.1
OpenGL	3.3	3.3
Memory
Maximum RAM amount	512 MB	256 MB
Memory bandwidth	51.2 GB / s	10.48 GB / s
Memory bus width	128 Bit	64 Bit
Memory clock speed	3200 MHz	1310 MHz
Memory type	GDDR5	DDR2