NVIDIA GeForce 940MX vs NVIDIA GeForce GT 640 OEM Rebrand

Comparative analysis of NVIDIA GeForce 940MX and NVIDIA GeForce GT 640 OEM Rebrand 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 940MX

NVIDIA GeForce GT 640 OEM Rebrand

Differences

Reasons to consider the NVIDIA GeForce 940MX

Videocard is newer: launch date 4 year(s) 2 month(s) later
Around 33% higher core clock speed: 954 MHz vs 720 MHz
Around 38% higher texture fill rate: 23.83 GTexel / s vs 17.28 GTexel / s
2.7x more pipelines: 384 vs 144
Around 84% better floating-point performance: 762.6 gflops vs 414.7 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
3.3x lower typical power consumption: 23 Watt vs 75 Watt
2.7x more maximum memory size: 4 GB vs 1536 MB
3.1x more memory clock speed: 5012 MHz vs 1600 MHz
Around 43% better performance in 3DMark Fire Strike - Graphics Score: 585 vs 410

Specifications (specs)
Launch date	28 June 2016 vs 24 April 2012
Core clock speed	954 MHz vs 720 MHz
Texture fill rate	23.83 GTexel / s vs 17.28 GTexel / s
Pipelines	384 vs 144
Floating-point performance	762.6 gflops vs 414.7 gflops
Manufacturing process technology	28 nm vs 40 nm
Thermal Design Power (TDP)	23 Watt vs 75 Watt
Maximum memory size	4 GB vs 1536 MB
Memory clock speed	5012 MHz vs 1600 MHz
Benchmarks
3DMark Fire Strike - Graphics Score	585 vs 410

Compare benchmarks

GPU 1: NVIDIA GeForce 940MX
GPU 2: NVIDIA GeForce GT 640 OEM Rebrand

3DMark Fire Strike - Graphics Score

GPU 1

GPU 2

585

410

Name	NVIDIA GeForce 940MX	NVIDIA GeForce GT 640 OEM Rebrand
PassMark - G3D Mark	1516
PassMark - G2D Mark	172
Geekbench - OpenCL	6325
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	28.91
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	312.94
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.83
CompuBench 1.5 Desktop - Video Composition (Frames/s)	27.833
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	103.937
GFXBench 4.0 - Car Chase Offscreen (Frames)	2486
GFXBench 4.0 - Manhattan (Frames)	3587
GFXBench 4.0 - T-Rex (Frames)	3357
GFXBench 4.0 - Car Chase Offscreen (Fps)	2486
GFXBench 4.0 - Manhattan (Fps)	3587
GFXBench 4.0 - T-Rex (Fps)	3357
3DMark Fire Strike - Graphics Score	585	410

Compare specifications (specs)

	NVIDIA GeForce 940MX	NVIDIA GeForce GT 640 OEM Rebrand
Essentials
Architecture	Maxwell	Fermi 2.0
Code name	GM108	GF116
Launch date	28 June 2016	24 April 2012
Place in performance rating	1071	1602
Type	Laptop	Desktop
Technical info
Boost clock speed	993 MHz
Core clock speed	954 MHz	720 MHz
Floating-point performance	762.6 gflops	414.7 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	384	144
Texture fill rate	23.83 GTexel / s	17.28 GTexel / s
Thermal Design Power (TDP)	23 Watt	75 Watt
Transistor count	1,870 million	1,170 million
Video outputs and ports
Display Connectors	No outputs	2x DVI, 1x mini-HDMI
Compatibility, dimensions and requirements
Bus support	PCI Express 3.0
Interface	PCIe 3.0 x8	PCIe 2.0 x16
Laptop size	medium sized
Supplementary power connectors	None	None
Length		145 mm
API support
DirectX	12.0 (11_0)	12.0 (11_0)
OpenGL	4.5	4.6
Memory
Maximum RAM amount	4 GB	1536 MB
Memory bandwidth	40.1 GB / s	38.4 GB / s
Memory bus width	64 Bit	192 Bit
Memory clock speed	5012 MHz	1600 MHz
Memory type	DDR3, GDDR5	DDR3
Shared memory	0
Technologies
CUDA
GameWorks
GeForce Experience
GPU Boost
Optimus