NVIDIA GeForce GT 640M Mac Edition videocard review

GeForce GT 640M Mac Edition videocard released by NVIDIA; release date: 3 February 2013. The videocard is designed for desktop-computers and based on Kepler microarchitecture codenamed GK107.

Core clock speed - 745 MHz. Texture fill rate - 23.84 GTexel / s. Pipelines - 384. Floating-point performance - 572.2 gflops. Manufacturing process technology - 28 nm. Transistors count - 1,270 million. Power consumption (TDP) - 32 Watt.

Memory type: GDDR5. Maximum RAM amount - 512 MB. Memory bus width - 64 Bit. Memory clock speed - 5000 MHz. Memory bandwidth - 40 GB / s.

Benchmarks

CompuBench 1.5 Desktop
Face Detection

Top 1 GPU

This GPU

939.363 mPixels/s

6.577 mPixels/s

CompuBench 1.5 Desktop
Ocean Surface Simulation

Top 1 GPU

This GPU

14101.507 Frames/s

226.218 Frames/s

CompuBench 1.5 Desktop
T-Rex

Top 1 GPU

This GPU

95.851 Frames/s

0.559 Frames/s

CompuBench 1.5 Desktop
Video Composition

Top 1 GPU

This GPU

461.690 Frames/s

11.947 Frames/s

CompuBench 1.5 Desktop
Bitcoin Mining

Top 1 GPU

This GPU

4429.590 mHash/s

12.554 mHash/s

GFXBench 4.0
Car Chase Offscreen

Top 1 GPU

This GPU

34770 Frames

1706 Frames

GFXBench 4.0
Manhattan

Top 1 GPU

This GPU

27823 Frames

2983 Frames

GFXBench 4.0
T-Rex

Top 1 GPU

This GPU

69225 Frames

5586 Frames

GFXBench 4.0
Car Chase Offscreen

Top 1 GPU

This GPU

34770.000 Fps

28.900 Fps

GFXBench 4.0
Manhattan

Top 1 GPU

This GPU

27823.000 Fps

48.100 Fps

GFXBench 4.0
T-Rex

Top 1 GPU

This GPU

69225.000 Fps

99.800 Fps

Name	Value
CompuBench 1.5 Desktop - Face Detection	6.577 mPixels/s
CompuBench 1.5 Desktop - Ocean Surface Simulation	226.218 Frames/s
CompuBench 1.5 Desktop - T-Rex	0.559 Frames/s
CompuBench 1.5 Desktop - Video Composition	11.947 Frames/s
CompuBench 1.5 Desktop - Bitcoin Mining	12.554 mHash/s
GFXBench 4.0 - Car Chase Offscreen	1706 Frames
GFXBench 4.0 - Manhattan	2983 Frames
GFXBench 4.0 - T-Rex	5586 Frames
GFXBench 4.0 - Car Chase Offscreen	28.900 Fps
GFXBench 4.0 - Manhattan	48.100 Fps
GFXBench 4.0 - T-Rex	99.800 Fps

Specifications (specs)

Essentials
Architecture	Kepler
Code name	GK107
Launch date	3 February 2013
Place in performance rating	1507
Type	Desktop
Technical info
Core clock speed	745 MHz
Floating-point performance	572.2 gflops
Manufacturing process technology	28 nm
Pipelines	384
Texture fill rate	23.84 GTexel / s
Thermal Design Power (TDP)	32 Watt
Transistor count	1,270 million

Video outputs and ports
Display Connectors	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x16
API support
DirectX	12.0 (11_0)
OpenGL	4.6
Memory
Maximum RAM amount	512 MB
Memory bandwidth	40 GB / s
Memory bus width	64 Bit
Memory clock speed	5000 MHz
Memory type	GDDR5