NVIDIA Quadro M620 Mobile vs NVIDIA GeForce GT 645 OEM

Comparative analysis of NVIDIA Quadro M620 Mobile and NVIDIA GeForce GT 645 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: PassMark - G2D Mark, PassMark - G3D Mark, Geekbench - OpenCL, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

NVIDIA Quadro M620 Mobile

NVIDIA GeForce GT 645 OEM

Differences

Reasons to consider the NVIDIA Quadro M620 Mobile

Videocard is newer: launch date 4 year(s) 8 month(s) later
Around 78% higher pipelines: 512 vs 288
Around 12% better floating-point performance: 1,000 gflops vs 894.0 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
3.4x lower typical power consumption: 30 Watt vs 102 Watt
2x more maximum memory size: 2 GB vs 1 GB
Around 31% higher memory clock speed: 5012 MHz vs 3828 MHz
Around 39% better performance in PassMark - G3D Mark: 2792 vs 2006
Around 75% better performance in GFXBench 4.0 - T-Rex (Frames): 3358 vs 1914
Around 75% better performance in GFXBench 4.0 - T-Rex (Fps): 3358 vs 1914

Specifications (specs)
Launch date	11 January 2017 vs 24 April 2012
Pipelines	512 vs 288
Floating-point performance	1,000 gflops vs 894.0 gflops
Manufacturing process technology	28 nm vs 40 nm
Thermal Design Power (TDP)	30 Watt vs 102 Watt
Maximum memory size	2 GB vs 1 GB
Memory clock speed	5012 MHz vs 3828 MHz
Benchmarks
PassMark - G3D Mark	2792 vs 2006
GFXBench 4.0 - T-Rex (Frames)	3358 vs 1914
GFXBench 4.0 - T-Rex (Fps)	3358 vs 1914

Reasons to consider the NVIDIA GeForce GT 645 OEM

Around 3% higher core clock speed: 776 MHz vs 756 MHz
Around 19% higher texture fill rate: 37.2 GTexel / s vs 31.26 GTexel / s
Around 6% better performance in PassMark - G2D Mark: 443 vs 417

Specifications (specs)
Core clock speed	776 MHz vs 756 MHz
Texture fill rate	37.2 GTexel / s vs 31.26 GTexel / s
Benchmarks
PassMark - G2D Mark	443 vs 417

Compare benchmarks

GPU 1: NVIDIA Quadro M620 Mobile
GPU 2: NVIDIA GeForce GT 645 OEM

PassMark - G2D Mark

GPU 1

GPU 2

417

443

PassMark - G3D Mark

GPU 1

GPU 2

2792

2006

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3358

1914

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3358

1914

Name	NVIDIA Quadro M620 Mobile	NVIDIA GeForce GT 645 OEM
PassMark - G2D Mark	417	443
PassMark - G3D Mark	2792	2006
Geekbench - OpenCL	8001
GFXBench 4.0 - Car Chase Offscreen (Frames)	3854
GFXBench 4.0 - Car Chase Offscreen (Fps)	3854
GFXBench 4.0 - Manhattan (Frames)	3718
GFXBench 4.0 - Manhattan (Fps)	3718
GFXBench 4.0 - T-Rex (Frames)	3358	1914
GFXBench 4.0 - T-Rex (Fps)	3358	1914

Compare specifications (specs)

	NVIDIA Quadro M620 Mobile	NVIDIA GeForce GT 645 OEM
Essentials
Architecture	Maxwell	Fermi 2.0
Code name	GM107	GF114
Launch date	11 January 2017	24 April 2012
Place in performance rating	565	567
Type	Workstation	Desktop
Technical info
Boost clock speed	977 MHz
Core clock speed	756 MHz	776 MHz
Floating-point performance	1,000 gflops	894.0 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	512	288
Texture fill rate	31.26 GTexel / s	37.2 GTexel / s
Thermal Design Power (TDP)	30 Watt	102 Watt
Transistor count	1,870 million	1,950 million
Video outputs and ports
Display Connectors	No outputs	2x DVI, 1x mini-HDMI
Compatibility, dimensions and requirements
Interface	MXM-A (3.0)	PCIe 2.0 x16
Length		210 mm
API support
DirectX	12.0 (11_0)	12.0 (11_0)
OpenGL	4.6	4.6
Memory
Maximum RAM amount	2 GB	1 GB
Memory bandwidth	80.19 GB / s	91.9 GB / s
Memory bus width	128 Bit	192 Bit
Memory clock speed	5012 MHz	3828 MHz
Memory type	GDDR5	GDDR5