NVIDIA GeForce GT 640M Mac Edition vs NVIDIA GeForce GT 320M

Comparative analysis of NVIDIA GeForce GT 640M Mac Edition and NVIDIA GeForce GT 320M 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: 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), PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL.

NVIDIA GeForce GT 640M Mac Edition

NVIDIA GeForce GT 320M

Differences

Reasons to consider the NVIDIA GeForce GT 640M Mac Edition

Videocard is newer: launch date 2 year(s) 10 month(s) later
Around 49% higher core clock speed: 745 MHz vs 500 MHz
3x more texture fill rate: 23.84 GTexel / s vs 8 GTexel / s
16x more pipelines: 384 vs 24
7.2x better floating-point performance: 572.2 gflops vs 80 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
3.2x more memory clock speed: 5000 MHz vs 1580 MHz
2x better performance in GFXBench 4.0 - Manhattan (Frames): 2983 vs 1458
3.1x better performance in GFXBench 4.0 - T-Rex (Frames): 5586 vs 1774

Specifications (specs)
Launch date	3 February 2013 vs 3 March 2010
Core clock speed	745 MHz vs 500 MHz
Texture fill rate	23.84 GTexel / s vs 8 GTexel / s
Pipelines	384 vs 24
Floating-point performance	572.2 gflops vs 80 gflops
Manufacturing process technology	28 nm vs 40 nm
Memory clock speed	5000 MHz vs 1580 MHz
Benchmarks
GFXBench 4.0 - Manhattan (Frames)	2983 vs 1458
GFXBench 4.0 - T-Rex (Frames)	5586 vs 1774

Reasons to consider the NVIDIA GeForce GT 320M

2.3x lower typical power consumption: 14 Watt vs 32 Watt
30.3x better performance in GFXBench 4.0 - Manhattan (Fps): 1458 vs 48.1
17.8x better performance in GFXBench 4.0 - T-Rex (Fps): 1774 vs 99.8

Specifications (specs)
Thermal Design Power (TDP)	14 Watt vs 32 Watt
Benchmarks
GFXBench 4.0 - Manhattan (Fps)	1458 vs 48.1
GFXBench 4.0 - T-Rex (Fps)	1774 vs 99.8

Compare benchmarks

GPU 1: NVIDIA GeForce GT 640M Mac Edition
GPU 2: NVIDIA GeForce GT 320M

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

2983

1458

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

5586

1774

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

48.1

1458

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

99.8

1774

Name	NVIDIA GeForce GT 640M Mac Edition	NVIDIA GeForce GT 320M
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	6.577
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	226.218
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.559
CompuBench 1.5 Desktop - Video Composition (Frames/s)	11.947
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	12.554
GFXBench 4.0 - Car Chase Offscreen (Frames)	1706
GFXBench 4.0 - Manhattan (Frames)	2983	1458
GFXBench 4.0 - T-Rex (Frames)	5586	1774
GFXBench 4.0 - Car Chase Offscreen (Fps)	28.9
GFXBench 4.0 - Manhattan (Fps)	48.1	1458
GFXBench 4.0 - T-Rex (Fps)	99.8	1774
PassMark - G3D Mark		106
PassMark - G2D Mark		35
Geekbench - OpenCL		3307

Compare specifications (specs)

	NVIDIA GeForce GT 640M Mac Edition	NVIDIA GeForce GT 320M
Essentials
Architecture	Kepler	Tesla 2.0
Code name	GK107	GT216
Launch date	3 February 2013	3 March 2010
Place in performance rating	1512	1509
Type	Desktop	Laptop
Technical info
Core clock speed	745 MHz	500 MHz
Floating-point performance	572.2 gflops	80 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	384	24
Texture fill rate	23.84 GTexel / s	8 GTexel / s
Thermal Design Power (TDP)	32 Watt	14 Watt
Transistor count	1,270 million	486 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Laptop size		medium sized
Supplementary power connectors		None
API support
DirectX	12.0 (11_0)	10.1
OpenGL	4.6	3.3
Memory
Maximum RAM amount	512 MB	512 MB
Memory bandwidth	40 GB / s	25.6 GB / s
Memory bus width	64 Bit	128 Bit
Memory clock speed	5000 MHz	1580 MHz
Memory type	GDDR5	DDR3
Shared memory		0
Technologies
HybridPower
PCI-E 2.0