ATI Mobility Radeon HD 4650 vs ATI Radeon HD 2900 GT

Comparative analysis of ATI Mobility Radeon HD 4650 and ATI Radeon HD 2900 GT videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

ATI Mobility Radeon HD 4650

ATI Radeon HD 2900 GT

Differences

Reasons to consider the ATI Mobility Radeon HD 4650

Videocard is newer: launch date 1 year(s) 2 month(s) later
2.2x more texture fill rate: 16 GTexel / s vs 7.21 GTexel / s
Around 33% higher pipelines: 320 vs 240
Around 11% better floating-point performance: 320.0 gflops vs 288.48 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 55 nm vs 80 nm
4.3x lower typical power consumption: 35 Watt vs 150 Watt
2x more maximum memory size: 512 MB vs 256 MB
Around 37% better performance in PassMark - G3D Mark: 401 vs 292
Around 23% better performance in GFXBench 4.0 - T-Rex (Frames): 3262 vs 2648
Around 23% better performance in GFXBench 4.0 - T-Rex (Fps): 3262 vs 2648

Specifications (specs)
Launch date	9 January 2009 vs 6 November 2007
Texture fill rate	16 GTexel / s vs 7.21 GTexel / s
Pipelines	320 vs 240
Floating-point performance	320.0 gflops vs 288.48 gflops
Manufacturing process technology	55 nm vs 80 nm
Thermal Design Power (TDP)	35 Watt vs 150 Watt
Maximum memory size	512 MB vs 256 MB
Benchmarks
PassMark - G3D Mark	401 vs 292
GFXBench 4.0 - T-Rex (Frames)	3262 vs 2648
GFXBench 4.0 - T-Rex (Fps)	3262 vs 2648

Reasons to consider the ATI Radeon HD 2900 GT

Around 20% higher core clock speed: 601 MHz vs 500 MHz
Around 33% higher memory clock speed: 1600 MHz vs 1200 MHz
Around 8% better performance in PassMark - G2D Mark: 344 vs 320

Specifications (specs)
Core clock speed	601 MHz vs 500 MHz
Memory clock speed	1600 MHz vs 1200 MHz
Benchmarks
PassMark - G2D Mark	344 vs 320

Compare benchmarks

GPU 1: ATI Mobility Radeon HD 4650
GPU 2: ATI Radeon HD 2900 GT

PassMark - G3D Mark

GPU 1

GPU 2

401

292

PassMark - G2D Mark

GPU 1

GPU 2

320

344

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3262

2648

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3262

2648

Name	ATI Mobility Radeon HD 4650	ATI Radeon HD 2900 GT
PassMark - G3D Mark	401	292
PassMark - G2D Mark	320	344
GFXBench 4.0 - T-Rex (Frames)	3262	2648
GFXBench 4.0 - T-Rex (Fps)	3262	2648

Compare specifications (specs)

	ATI Mobility Radeon HD 4650	ATI Radeon HD 2900 GT
Essentials
Architecture	TeraScale	TeraScale
Code name	M96	R600
Launch date	9 January 2009	6 November 2007
Place in performance rating	772	773
Type	Laptop	Desktop
Technical info
Core clock speed	500 MHz	601 MHz
Floating-point performance	320.0 gflops	288.48 gflops
Manufacturing process technology	55 nm	80 nm
Pipelines	320	240
Texture fill rate	16 GTexel / s	7.21 GTexel / s
Thermal Design Power (TDP)	35 Watt	150 Watt
Transistor count	514 million	720 million
Video outputs and ports
Display Connectors	No outputs	2x DVI, 1x S-Video
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 1.0 x16
Laptop size	medium sized
Supplementary power connectors		1x 8-pin
API support
DirectX	10.1	10.0
OpenGL	3.3	3.3
Memory
Maximum RAM amount	512 MB	256 MB
Memory bandwidth	19.2 GB / s	51.2 GB / s
Memory bus width	128 Bit	256 Bit
Memory clock speed	1200 MHz	1600 MHz
Memory type	GDDR3, DDR2, DDR3	GDDR3
Shared memory	0
Technologies
1x Dual-Link/Single-Link DVI
1x Single-Link DVI Support (all display ports have to be supported by the laptop manufacturer)
DisplayPort support up to 2560x1600
HDMI support up to 1920x1080 (both with 7.1 AC3 Audio)
PCI-E 2.0 x16
Powerplay