NVIDIA GeForce GT 645M vs ATI Mobility Radeon HD 3400

Comparative analysis of NVIDIA GeForce GT 645M and ATI Mobility Radeon HD 3400 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, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

NVIDIA GeForce GT 645M

ATI Mobility Radeon HD 3400

Differences

Reasons to consider the NVIDIA GeForce GT 645M

Videocard is newer: launch date 2 year(s) 1 month(s) later
8.4x better performance in PassMark - G3D Mark: 936 vs 111
3.6x better performance in GFXBench 4.0 - T-Rex (Frames): 3341 vs 918
3.6x better performance in GFXBench 4.0 - T-Rex (Fps): 3341 vs 918

Specifications (specs)
Launch date	1 October 2012 vs 1 August 2010
Benchmarks
PassMark - G3D Mark	936 vs 111
GFXBench 4.0 - T-Rex (Frames)	3341 vs 918
GFXBench 4.0 - T-Rex (Fps)	3341 vs 918

Reasons to consider the ATI Mobility Radeon HD 3400

Around 46% better performance in PassMark - G2D Mark: 239 vs 164

Benchmarks
PassMark - G2D Mark	239 vs 164

Compare benchmarks

GPU 1: NVIDIA GeForce GT 645M
GPU 2: ATI Mobility Radeon HD 3400

PassMark - G3D Mark

GPU 1

GPU 2

936

111

PassMark - G2D Mark

GPU 1

GPU 2

164

239

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3341

918

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3341

918

Name	NVIDIA GeForce GT 645M	ATI Mobility Radeon HD 3400
PassMark - G3D Mark	936	111
PassMark - G2D Mark	164	239
Geekbench - OpenCL	2683
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	8.493
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	285.42
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.863
CompuBench 1.5 Desktop - Video Composition (Frames/s)	17.242
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	19.116
GFXBench 4.0 - Car Chase Offscreen (Frames)	1913
GFXBench 4.0 - Manhattan (Frames)	3670
GFXBench 4.0 - T-Rex (Frames)	3341	918
GFXBench 4.0 - Car Chase Offscreen (Fps)	1913
GFXBench 4.0 - Manhattan (Fps)	3670
GFXBench 4.0 - T-Rex (Fps)	3341	918

Compare specifications (specs)

	NVIDIA GeForce GT 645M	ATI Mobility Radeon HD 3400
Essentials
Architecture	Kepler	RV6xx
Code name	GK107
Launch date	1 October 2012	1 August 2010
Place in performance rating	1187	1189
Type	Laptop	Laptop
Technical info
CUDA cores	384
Floating-point performance	544.5 gflops
Manufacturing process technology	28 nm
Pipelines	384
Texture fill rate	22.7 billion / sec
Thermal Design Power (TDP)	32 Watt
Transistor count	1,270 million
Video outputs and ports
Display Connectors	No outputs
HDCP
HDMI
Maximum VGA resolution	Up to 2048x1536
Compatibility, dimensions and requirements
Bus support	PCI Express 2.0, PCI Express 3.0
Interface	PCIe 3.0 x16
Laptop size	medium sized
API support
DirectX	12 API
OpenCL	1.1
OpenGL	4.5
Memory
Maximum RAM amount	2 GB
Memory bus width	128bit
Memory clock speed	1800 MHz
Memory type	DDR3\GDDR5
Shared memory	0	yes
Technologies
3D Blu-Ray
3D Vision
CUDA
DirectCompute
DirectX 11	DirectX 11
Optimus