NVIDIA GeForce 945A vs AMD Radeon HD 7950 Mac Edition

Comparative analysis of NVIDIA GeForce 945A and AMD Radeon HD 7950 Mac Edition 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: 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), PassMark - G2D Mark, PassMark - G3D Mark.

NVIDIA GeForce 945A

AMD Radeon HD 7950 Mac Edition

Differences

Reasons to consider the NVIDIA GeForce 945A

Videocard is newer: launch date 2 year(s) 0 month(s) later
Around 34% higher core clock speed: 1072 MHz vs 800 MHz
6.1x lower typical power consumption: 33 Watt vs 200 Watt

Launch date	13 March 2015 vs 7 March 2013
Core clock speed	1072 MHz vs 800 MHz
Thermal Design Power (TDP)	33 Watt vs 200 Watt

Reasons to consider the AMD Radeon HD 7950 Mac Edition

3.2x more texture fill rate: 89.6 GTexel / s vs 28.22 GTexel / s
4.7x more pipelines: 1792 vs 384
3.2x better floating-point performance: 2,867 gflops vs 903.2 gflops
Around 50% higher maximum memory size: 3 GB vs 2 GB
2.8x more memory clock speed: 5000 MHz vs 1800 MHz
2.3x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 67.802 vs 28.865
3.2x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 1230.769 vs 381.898
2.7x better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 81.68 vs 30.793
3.4x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 370.179 vs 107.63

Specifications (specs)
Texture fill rate	89.6 GTexel / s vs 28.22 GTexel / s
Pipelines	1792 vs 384
Floating-point performance	2,867 gflops vs 903.2 gflops
Maximum memory size	3 GB vs 2 GB
Memory clock speed	5000 MHz vs 1800 MHz
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	67.802 vs 28.865
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	1230.769 vs 381.898
CompuBench 1.5 Desktop - Video Composition (Frames/s)	81.68 vs 30.793
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	370.179 vs 107.63

Compare benchmarks

GPU 1: NVIDIA GeForce 945A
GPU 2: AMD Radeon HD 7950 Mac Edition

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

GPU 1

GPU 2

28.865

67.802

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

GPU 1

GPU 2

381.898

1230.769

CompuBench 1.5 Desktop - Video Composition (Frames/s)

GPU 1

GPU 2

30.793

81.68

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

GPU 1

GPU 2

107.63

370.179

Name	NVIDIA GeForce 945A	AMD Radeon HD 7950 Mac Edition
Geekbench - OpenCL	32359
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	28.865	67.802
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	381.898	1230.769
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.991
CompuBench 1.5 Desktop - Video Composition (Frames/s)	30.793	81.68
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	107.63	370.179
PassMark - G2D Mark	716
PassMark - G3D Mark	1852

Compare specifications (specs)

	NVIDIA GeForce 945A	AMD Radeon HD 7950 Mac Edition
Essentials
Architecture	Maxwell	GCN 1.0
Code name	GM108	Tahiti
Launch date	13 March 2015	7 March 2013
Place in performance rating	597	599
Type	Desktop	Desktop
Launch price (MSRP)		$449
Technical info
Boost clock speed	1176 MHz
Core clock speed	1072 MHz	800 MHz
Floating-point performance	903.2 gflops	2,867 gflops
Manufacturing process technology	28 nm	28 nm
Pipelines	384	1792
Texture fill rate	28.22 GTexel / s	89.6 GTexel / s
Thermal Design Power (TDP)	33 Watt	200 Watt
Transistor count		4,313 million
Video outputs and ports
Display Connectors	No outputs	1x DVI, 1x HDMI, 2x mini-DisplayPort
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x8	PCIe 3.0 x16
Length		279 mm
Supplementary power connectors		2x 6-pin
API support
DirectX	12.0 (11_0)	12.0 (11_1)
OpenGL	4.6	4.5
Memory
Maximum RAM amount	2 GB	3 GB
Memory bandwidth	14.4 GB / s	240.0 GB / s
Memory bus width	64 Bit	384 Bit
Memory clock speed	1800 MHz	5000 MHz
Memory type	DDR3	GDDR5