NVIDIA GeForce 820M vs NVIDIA GeForce GT 755M Mac Edition

Comparative analysis of NVIDIA GeForce 820M and NVIDIA GeForce GT 755M 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, 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 820M

NVIDIA GeForce GT 755M Mac Edition

Differences

Reasons to consider the NVIDIA GeForce 820M

Videocard is newer: launch date 1 year(s) 4 month(s) later
Around 11% lower typical power consumption: 45 Watt vs 50 Watt
Around 19% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 22.768 vs 19.139
23.4x better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 1195 vs 51
30.8x better performance in GFXBench 4.0 - Manhattan (Fps): 1447 vs 47
56.2x better performance in GFXBench 4.0 - T-Rex (Fps): 3349 vs 59.6

Specifications (specs)
Launch date	21 March 2015 vs 8 November 2013
Thermal Design Power (TDP)	45 Watt vs 50 Watt
Benchmarks
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	22.768 vs 19.139
GFXBench 4.0 - T-Rex (Frames)	3349 vs 3335
GFXBench 4.0 - Car Chase Offscreen (Fps)	1195 vs 51
GFXBench 4.0 - Manhattan (Fps)	1447 vs 47
GFXBench 4.0 - T-Rex (Fps)	3349 vs 59.6

Reasons to consider the NVIDIA GeForce GT 755M Mac Edition

Around 34% higher core clock speed: 1085 MHz vs 810 MHz
3.5x more texture fill rate: 34.72 GTexel / s vs 10 GTexel / s
4x more pipelines: 384 vs 96
3.5x better floating-point performance: 833.3 gflops vs 240.0 gflops
2.8x more memory clock speed: 5000 MHz vs 1802 MHz
Around 32% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 10.243 vs 7.765
2.4x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 393.811 vs 161.305
Around 41% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.966 vs 0.686
Around 32% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 18.793 vs 14.257
2.5x better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 3011 vs 1195
2x better performance in GFXBench 4.0 - Manhattan (Frames): 2916 vs 1447

Specifications (specs)
Core clock speed	1085 MHz vs 810 MHz
Texture fill rate	34.72 GTexel / s vs 10 GTexel / s
Pipelines	384 vs 96
Floating-point performance	833.3 gflops vs 240.0 gflops
Memory clock speed	5000 MHz vs 1802 MHz
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	10.243 vs 7.765
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	393.811 vs 161.305
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.966 vs 0.686
CompuBench 1.5 Desktop - Video Composition (Frames/s)	18.793 vs 14.257
GFXBench 4.0 - Car Chase Offscreen (Frames)	3011 vs 1195
GFXBench 4.0 - Manhattan (Frames)	2916 vs 1447

Compare benchmarks

GPU 1: NVIDIA GeForce 820M
GPU 2: NVIDIA GeForce GT 755M Mac Edition

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

GPU 1

GPU 2

7.765

10.243

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

GPU 1

GPU 2

161.305

393.811

CompuBench 1.5 Desktop - T-Rex (Frames/s)

GPU 1

GPU 2

0.686

0.966

CompuBench 1.5 Desktop - Video Composition (Frames/s)

GPU 1

GPU 2

14.257

18.793

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

GPU 1

GPU 2

22.768

19.139

GFXBench 4.0 - Car Chase Offscreen (Frames)

GPU 1

GPU 2

1195

3011

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

1447

2916

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3349

3335

GFXBench 4.0 - Car Chase Offscreen (Fps)

GPU 1

GPU 2

1195

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

1447

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3349

59.6

Name	NVIDIA GeForce 820M	NVIDIA GeForce GT 755M Mac Edition
PassMark - G3D Mark	499
PassMark - G2D Mark	112
Geekbench - OpenCL	2736
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	7.765	10.243
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	161.305	393.811
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.686	0.966
CompuBench 1.5 Desktop - Video Composition (Frames/s)	14.257	18.793
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	22.768	19.139
GFXBench 4.0 - Car Chase Offscreen (Frames)	1195	3011
GFXBench 4.0 - Manhattan (Frames)	1447	2916
GFXBench 4.0 - T-Rex (Frames)	3349	3335
GFXBench 4.0 - Car Chase Offscreen (Fps)	1195	51
GFXBench 4.0 - Manhattan (Fps)	1447	47
GFXBench 4.0 - T-Rex (Fps)	3349	59.6
3DMark Fire Strike - Graphics Score	847

Compare specifications (specs)

	NVIDIA GeForce 820M	NVIDIA GeForce GT 755M Mac Edition
Essentials
Architecture	Kepler	Kepler
Code name	GK107	GK107
Launch date	21 March 2015	8 November 2013
Place in performance rating	1468	1470
Type	Laptop	Desktop
Technical info
Core clock speed	810 MHz	1085 MHz
Floating-point performance	240.0 gflops	833.3 gflops
Manufacturing process technology	28 nm	28 nm
Pipelines	96	384
Texture fill rate	10 GTexel / s	34.72 GTexel / s
Thermal Design Power (TDP)	45 Watt	50 Watt
Transistor count	1,270 million	1,270 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Bus support	PCI Express 2.0
Interface	PCIe 3.0 x16	PCIe 3.0 x16
API support
DirectX	12.0 (11_0)	12.0 (11_0)
OpenGL	4.5	4.6
Memory
Maximum RAM amount	1 GB	1 GB
Memory bandwidth	14.4 GB / s	80 GB / s
Memory bus width	64 Bit	128 Bit
Memory clock speed	1802 MHz	5000 MHz
Memory type	DDR3	GDDR5
Shared memory	0
Technologies
CUDA
GameWorks
GPU Boost
Optimus
Verde Drivers