NVIDIA GeForce GT 445M vs ATI Mobility Radeon HD 3870 X2

Comparative analysis of NVIDIA GeForce GT 445M and ATI Mobility Radeon HD 3870 X2 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, Geekbench - OpenCL, GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

NVIDIA GeForce GT 445M

ATI Mobility Radeon HD 3870 X2

Differences

Reasons to consider the NVIDIA GeForce GT 445M

Videocard is newer: launch date 2 year(s) 0 month(s) later
Around 79% higher core clock speed: 1180 MHz vs 660 MHz
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 40 nm vs 55 nm
3.1x lower typical power consumption: 35 Watt vs 110 Watt
3x more maximum memory size: 3 GB vs 2x 512 MB
Around 70% better performance in PassMark - G3D Mark: 811 vs 478
Around 9% better performance in PassMark - G2D Mark: 203 vs 187

Specifications (specs)
Launch date	3 September 2010 vs 1 September 2008
Core clock speed	1180 MHz vs 660 MHz
Manufacturing process technology	40 nm vs 55 nm
Thermal Design Power (TDP)	35 Watt vs 110 Watt
Maximum memory size	3 GB vs 2x 512 MB
Benchmarks
PassMark - G3D Mark	811 vs 478
PassMark - G2D Mark	203 vs 187

Reasons to consider the ATI Mobility Radeon HD 3870 X2

19.9x more texture fill rate: 2x 10.56 GTexel / s billion / sec vs 10.6 billion / sec
4.4x more pipelines: 640 vs 144
2.5x better floating-point performance: 2x 422.4 gflops vs 339.8 gflops
Around 36% higher memory clock speed: 1700 MHz vs 1250 MHz

Texture fill rate	2x 10.56 GTexel / s billion / sec vs 10.6 billion / sec
Pipelines	640 vs 144
Floating-point performance	2x 422.4 gflops vs 339.8 gflops
Memory clock speed	1700 MHz vs 1250 MHz

Compare benchmarks

GPU 1: NVIDIA GeForce GT 445M
GPU 2: ATI Mobility Radeon HD 3870 X2

PassMark - G3D Mark

GPU 1

GPU 2

811

478

PassMark - G2D Mark

GPU 1

GPU 2

203

187

Name	NVIDIA GeForce GT 445M	ATI Mobility Radeon HD 3870 X2
PassMark - G3D Mark	811	478
PassMark - G2D Mark	203	187
Geekbench - OpenCL	12379
GFXBench 4.0 - Manhattan (Frames)	3274
GFXBench 4.0 - Manhattan (Fps)	3274
GFXBench 4.0 - T-Rex (Frames)	3350
GFXBench 4.0 - T-Rex (Fps)	3350

Compare specifications (specs)

	NVIDIA GeForce GT 445M	ATI Mobility Radeon HD 3870 X2
Essentials
Architecture	Fermi	TeraScale
Code name	GF106	M88
Launch date	3 September 2010	1 September 2008
Place in performance rating	880	881
Type	Laptop	Laptop
Technical info
Core clock speed	1180 MHz	660 MHz
CUDA cores	144
Floating-point performance	339.8 gflops	2x 422.4 gflops
Manufacturing process technology	40 nm	55 nm
Pipelines	144	640
Texture fill rate	10.6 billion / sec	2x 10.56 GTexel / s billion / sec
Thermal Design Power (TDP)	35 Watt	110 Watt
Transistor count	1,170 million	666 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Laptop size	large	large
API support
DirectX	12 API	10.1
OpenCL	1.1
OpenGL	4.5	3.3
Memory
Maximum RAM amount	3 GB	2x 512 MB
Memory bandwidth	60.0 GB / s	2x 54.4 GB / s
Memory bus width	192 Bit	256 Bit
Memory clock speed	1250 MHz	1700 MHz
Memory type	GDDR5	GDDR3
Shared memory	0	0
Technologies
3D Vision
CUDA
DirectCompute
DirectX 11	DirectX 11
Optimus
SLI