NVIDIA GeForce 8400 vs ATI Radeon HD 3870

Comparative analysis of NVIDIA GeForce 8400 and ATI Radeon HD 3870 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).

NVIDIA GeForce 8400

ATI Radeon HD 3870

Differences

Reasons to consider the NVIDIA GeForce 8400

4.2x lower typical power consumption: 25 Watt vs 106 Watt
2.8x better performance in PassMark - G2D Mark: 160 vs 58

Specifications (specs)
Thermal Design Power (TDP)	25 Watt vs 106 Watt
Benchmarks
PassMark - G2D Mark	160 vs 58

Reasons to consider the ATI Radeon HD 3870

Around 44% higher core clock speed: 777 MHz vs 540 MHz
2.9x more texture fill rate: 12.43 GTexel / s vs 4.32 GTexel / s
40x more pipelines: 320 vs 8
23.9x better floating-point performance: 497.3 gflops vs 20.8 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 55 nm vs 65 nm
2x more maximum memory size: 512 MB vs 256 MB
2.3x more memory clock speed: 2252 MHz vs 1000 MHz
6.9x better performance in PassMark - G3D Mark: 555 vs 81
4.3x better performance in GFXBench 4.0 - T-Rex (Frames): 3131 vs 733
4.3x better performance in GFXBench 4.0 - T-Rex (Fps): 3131 vs 733

Specifications (specs)
Core clock speed	777 MHz vs 540 MHz
Texture fill rate	12.43 GTexel / s vs 4.32 GTexel / s
Pipelines	320 vs 8
Floating-point performance	497.3 gflops vs 20.8 gflops
Manufacturing process technology	55 nm vs 65 nm
Maximum memory size	512 MB vs 256 MB
Memory clock speed	2252 MHz vs 1000 MHz
Benchmarks
PassMark - G3D Mark	555 vs 81
GFXBench 4.0 - T-Rex (Frames)	3131 vs 733
GFXBench 4.0 - T-Rex (Fps)	3131 vs 733

Compare benchmarks

GPU 1: NVIDIA GeForce 8400
GPU 2: ATI Radeon HD 3870

PassMark - G3D Mark

GPU 1

GPU 2

555

PassMark - G2D Mark

GPU 1

GPU 2

160

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

733

3131

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

733

3131

Name	NVIDIA GeForce 8400	ATI Radeon HD 3870
PassMark - G3D Mark	81	555
PassMark - G2D Mark	160	58
GFXBench 4.0 - T-Rex (Frames)	733	3131
GFXBench 4.0 - T-Rex (Fps)	733	3131

Compare specifications (specs)

	NVIDIA GeForce 8400	ATI Radeon HD 3870
Essentials
Architecture	Tesla	TeraScale
Code name	G98	RV670
Launch date	4 December 2007	19 November 2007
Launch price (MSRP)	$69.78	$269
Place in performance rating	1391	1392
Price now	$69.78
Type	Desktop	Desktop
Value for money (0-100)	1.87
Technical info
Core clock speed	540 MHz	777 MHz
Floating-point performance	20.8 gflops	497.3 gflops
Manufacturing process technology	65 nm	55 nm
Pipelines	8	320
Texture fill rate	4.32 GTexel / s	12.43 GTexel / s
Thermal Design Power (TDP)	25 Watt	106 Watt
Transistor count	210 million	666 million
Video outputs and ports
Display Connectors	1x DVI, 1x VGA, 1x S-Video	2x DVI, 1x S-Video
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Supplementary power connectors	None	1x 6-pin
Length		241 mm
API support
DirectX	10.0	10.0
OpenGL	3.3	3.3
Memory
Maximum RAM amount	256 MB	512 MB
Memory bandwidth	8 GB / s	72.1 GB / s
Memory bus width	64 Bit	256 Bit
Memory clock speed	1000 MHz	2252 MHz
Memory type	DDR2	GDDR4