AMD Radeon HD 7950M vs NVIDIA GeForce GT 640 OEM

Comparative analysis of AMD Radeon HD 7950M and NVIDIA GeForce GT 640 OEM 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: 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).

AMD Radeon HD 7950M

NVIDIA GeForce GT 640 OEM

Differences

Reasons to consider the AMD Radeon HD 7950M

3.3x more pipelines: 1280 vs 384
2.2x more memory clock speed: 4000 MHz vs 1782 MHz

Pipelines	1280 vs 384
Memory clock speed	4000 MHz vs 1782 MHz

Reasons to consider the NVIDIA GeForce GT 640 OEM

Around 14% higher core clock speed: 797 MHz vs 700 MHz
Around 50% lower typical power consumption: 50 Watt vs 75 Watt

Core clock speed	797 MHz vs 700 MHz
Thermal Design Power (TDP)	50 Watt vs 75 Watt

Compare benchmarks

GPU 1: AMD Radeon HD 7950M
GPU 2: NVIDIA GeForce GT 640 OEM

Name	AMD Radeon HD 7950M	NVIDIA GeForce GT 640 OEM
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		9.932
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		254.345
CompuBench 1.5 Desktop - T-Rex (Frames/s)		1.14
CompuBench 1.5 Desktop - Video Composition (Frames/s)		13.613
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		15.32
GFXBench 4.0 - Car Chase Offscreen (Frames)		1502
GFXBench 4.0 - Manhattan (Frames)		2167
GFXBench 4.0 - T-Rex (Frames)		3334
GFXBench 4.0 - Car Chase Offscreen (Fps)		1502
GFXBench 4.0 - Manhattan (Fps)		2167
GFXBench 4.0 - T-Rex (Fps)		3334

Compare specifications (specs)

	AMD Radeon HD 7950M	NVIDIA GeForce GT 640 OEM
Essentials
Architecture	GCN 1.0	Kepler
Code name	Wimbledon	GK107
Launch date	24 April 2012	24 April 2012
Place in performance rating	not rated	1386
Type	Laptop	Desktop
Technical info
Core clock speed	700 MHz	797 MHz
Manufacturing process technology	28 nm	28 nm
Pipelines	1280	384
Thermal Design Power (TDP)	75 Watt	50 Watt
Transistor count	2,800 million	1,270 million
Floating-point performance		612.1 gflops
Texture fill rate		25.5 GTexel / s
Video outputs and ports
Display Connectors	No outputs	1x DVI, 1x HDMI, 1x DisplayPort
Compatibility, dimensions and requirements
Interface	MXM-B (3.0)	PCIe 3.0 x16
Laptop size	large
Length		145 mm
Supplementary power connectors		None
API support
DirectX	12.0 (11_1)	12.0 (11_0)
OpenGL	4.5	4.6
Memory
Maximum RAM amount	2 GB	2 GB
Memory bus width	256 Bit	128 Bit
Memory clock speed	4000 MHz	1782 MHz
Memory type	GDDR5	DDR3
Shared memory	0
Memory bandwidth		28.51 GB / s