NVIDIA GeForce GTX 960 OEM vs NVIDIA GeForce GTX 645 OEM

Comparative analysis of NVIDIA GeForce GTX 960 OEM and NVIDIA GeForce GTX 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: CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, CompuBench 1.5 Desktop - T-Rex (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).

NVIDIA GeForce GTX 960 OEM

NVIDIA GeForce GTX 645 OEM

Differences

Reasons to consider the NVIDIA GeForce GTX 960 OEM

Videocard is newer: launch date 2 year(s) 7 month(s) later
Around 43% higher core clock speed: 1176 MHz vs 824 MHz
Around 94% higher texture fill rate: 76.86 GTexel / s vs 39.55 GTexel / s
Around 78% higher pipelines: 1024 vs 576
2.6x better floating-point performance: 2,460 gflops vs 949.2 gflops
4x more maximum memory size: 4 GB vs 1 GB
Around 75% higher memory clock speed: 7012 MHz vs 4000 MHz
5.6x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 76.687 vs 13.806
Around 63% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 890.785 vs 546.51
Around 4% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 28.659 vs 27.524

Specifications (specs)
Launch date	26 November 2015 vs 22 April 2013
Core clock speed	1176 MHz vs 824 MHz
Texture fill rate	76.86 GTexel / s vs 39.55 GTexel / s
Pipelines	1024 vs 576
Floating-point performance	2,460 gflops vs 949.2 gflops
Maximum memory size	4 GB vs 1 GB
Memory clock speed	7012 MHz vs 4000 MHz
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	76.687 vs 13.806
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	890.785 vs 546.51
CompuBench 1.5 Desktop - Video Composition (Frames/s)	28.659 vs 27.524

Compare benchmarks

GPU 1: NVIDIA GeForce GTX 960 OEM
GPU 2: NVIDIA GeForce GTX 645 OEM

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

GPU 1

GPU 2

76.687

13.806

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

GPU 1

GPU 2

890.785

546.51

CompuBench 1.5 Desktop - Video Composition (Frames/s)

GPU 1

GPU 2

28.659

27.524

Name	NVIDIA GeForce GTX 960 OEM	NVIDIA GeForce GTX 645 OEM
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	76.687	13.806
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	890.785	546.51
CompuBench 1.5 Desktop - Video Composition (Frames/s)	28.659	27.524
PassMark - G3D Mark		1877
PassMark - G2D Mark		430
Geekbench - OpenCL		5235
CompuBench 1.5 Desktop - T-Rex (Frames/s)		1.535
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		38.664
GFXBench 4.0 - Car Chase Offscreen (Frames)		1435
GFXBench 4.0 - Manhattan (Frames)		3531
GFXBench 4.0 - T-Rex (Frames)		3300
GFXBench 4.0 - Car Chase Offscreen (Fps)		1435
GFXBench 4.0 - Manhattan (Fps)		3531
GFXBench 4.0 - T-Rex (Fps)		3300

Compare specifications (specs)

	NVIDIA GeForce GTX 960 OEM	NVIDIA GeForce GTX 645 OEM
Essentials
Architecture	Maxwell 2.0	Kepler
Code name	GM206	GK106
Launch date	26 November 2015	22 April 2013
Place in performance rating	961	964
Type	Desktop	Desktop
Technical info
Boost clock speed	1201 MHz
Core clock speed	1176 MHz	824 MHz
Floating-point performance	2,460 gflops	949.2 gflops
Manufacturing process technology	28 nm	28 nm
Pipelines	1024	576
Texture fill rate	76.86 GTexel / s	39.55 GTexel / s
Transistor count	2,940 million	2,540 million
Thermal Design Power (TDP)		65 Watt
Video outputs and ports
Display Connectors	No outputs	1x DVI, 1x HDMI, 1x DisplayPort
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x16	PCIe 3.0 x16
Supplementary power connectors	None	None
Length		147 mm
API support
DirectX	12.0 (12_1)	12.0 (11_0)
OpenGL	4.6	4.6
Memory
Maximum RAM amount	4 GB	1 GB
Memory bandwidth	112.2 GB / s	64 GB / s
Memory bus width	128 Bit	128 Bit
Memory clock speed	7012 MHz	4000 MHz
Memory type	GDDR5	GDDR5