NVIDIA GeForce GT 745M vs AMD Radeon HD 7640G

Comparative analysis of NVIDIA GeForce GT 745M and AMD Radeon HD 7640G 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), 3DMark Fire Strike - Graphics Score.

NVIDIA GeForce GT 745M

AMD Radeon HD 7640G

Differences

Reasons to consider the NVIDIA GeForce GT 745M

Videocard is newer: launch date 10 month(s) later
Around 68% higher core clock speed: 837 MHz vs 497 MHz
Around 50% higher pipelines: 384 vs 256
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 32 nm
2.4x better performance in PassMark - G3D Mark: 1091 vs 459
Around 44% better performance in PassMark - G2D Mark: 179 vs 124
2.9x better performance in Geekbench - OpenCL: 3439 vs 1196
3.5x better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 2255 vs 636
Around 40% better performance in GFXBench 4.0 - Manhattan (Frames): 3133 vs 2245
3.5x better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 2255 vs 636
Around 40% better performance in GFXBench 4.0 - Manhattan (Fps): 3133 vs 2245

Specifications (specs)
Launch date	1 April 2013 vs 15 May 2012
Core clock speed	837 MHz vs 497 MHz
Pipelines	384 vs 256
Manufacturing process technology	28 nm vs 32 nm
Benchmarks
PassMark - G3D Mark	1091 vs 459
PassMark - G2D Mark	179 vs 124
Geekbench - OpenCL	3439 vs 1196
GFXBench 4.0 - Car Chase Offscreen (Frames)	2255 vs 636
GFXBench 4.0 - Manhattan (Frames)	3133 vs 2245
GFXBench 4.0 - Car Chase Offscreen (Fps)	2255 vs 636
GFXBench 4.0 - Manhattan (Fps)	3133 vs 2245

Reasons to consider the AMD Radeon HD 7640G

Benchmarks
GFXBench 4.0 - T-Rex (Frames)	3355 vs 3352
GFXBench 4.0 - T-Rex (Fps)	3355 vs 3352

Compare benchmarks

GPU 1: NVIDIA GeForce GT 745M
GPU 2: AMD Radeon HD 7640G

PassMark - G3D Mark

GPU 1

GPU 2

1091

459

PassMark - G2D Mark

GPU 1

GPU 2

179

124

Geekbench - OpenCL

GPU 1

GPU 2

3439

1196

GFXBench 4.0 - Car Chase Offscreen (Frames)

GPU 1

GPU 2

2255

636

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

3133

2245

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3352

3355

GFXBench 4.0 - Car Chase Offscreen (Fps)

GPU 1

GPU 2

2255

636

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

3133

2245

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3352

3355

Name	NVIDIA GeForce GT 745M	AMD Radeon HD 7640G
PassMark - G3D Mark	1091	459
PassMark - G2D Mark	179	124
Geekbench - OpenCL	3439	1196
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	10.489
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	202.905
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.66
CompuBench 1.5 Desktop - Video Composition (Frames/s)	8.184
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	19.323
GFXBench 4.0 - Car Chase Offscreen (Frames)	2255	636
GFXBench 4.0 - Manhattan (Frames)	3133	2245
GFXBench 4.0 - T-Rex (Frames)	3352	3355
GFXBench 4.0 - Car Chase Offscreen (Fps)	2255	636
GFXBench 4.0 - Manhattan (Fps)	3133	2245
GFXBench 4.0 - T-Rex (Fps)	3352	3355
3DMark Fire Strike - Graphics Score	0

Compare specifications (specs)

	NVIDIA GeForce GT 745M	AMD Radeon HD 7640G
Essentials
Architecture	Kepler	Terascale 3
Code name	GK107	Trinity
Launch date	1 April 2013	15 May 2012
Place in performance rating	1287	1289
Type	Laptop	Laptop
Technical info
Core clock speed	837 MHz	497 MHz
Floating-point performance	642.8 gflops
Manufacturing process technology	28 nm	32 nm
Pipelines	384	256
Texture fill rate	26.78 GTexel / s
Thermal Design Power (TDP)	45 Watt
Transistor count	1,270 million
Boost clock speed		686 MHz
Video outputs and ports
7.1 channel HD audio on HDMI
Display Connectors	No outputs
DisplayPort Multimode (DP++) support	Up to 3840x2160
eDP 1.2 signal support	Up to 3840x2160
HDCP content protection
HDMI
LVDS signal support	Up to 1920x1200
TrueHD and DTS-HD audio bitstreaming
VGA аnalog display support	Up to 2048x1536
Compatibility, dimensions and requirements
Bus support	PCI Express 3.0
Interface	PCIe 3.0 x16
Laptop size	medium sized	medium sized
API support
DirectX	12 API	11
OpenCL	1.1
OpenGL	4.5
Memory
Maximum RAM amount	2 GB
Memory bandwidth	28.8 GB / s
Memory bus width	128 Bit
Memory clock speed	1800 MHz
Memory type	DDR3, GDDR5
Shared memory	0	1
Standard memory configuration	DDR3 / GDDR5
Technologies
3D Vision
3D Vision / 3DTV Play
Blu-Ray 3D Support
CUDA
Direct Compute
FXAA
H.264, VC1, MPEG2 1080p video decoder
Optimus