AMD Radeon 620 vs NVIDIA GeForce 840A

Comparative analysis of AMD Radeon 620 and NVIDIA GeForce 840A 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: 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), PassMark - G2D Mark, PassMark - G3D Mark, Geekbench - OpenCL.

AMD Radeon 620

NVIDIA GeForce 840A

Differences

Reasons to consider the AMD Radeon 620

Videocard is newer: launch date 5 year(s) 1 month(s) later
1367.1x more texture fill rate: 24.58 GTexel/s vs 17.98 GTexel / s
2x more maximum memory size: 2 GB vs 1 GB

Launch date	13 May 2019 vs 17 March 2014
Texture fill rate	24.58 GTexel/s vs 17.98 GTexel / s
Maximum memory size	2 GB vs 1 GB

Reasons to consider the NVIDIA GeForce 840A

Around 41% higher core clock speed: 1029 MHz vs 730 MHz
Around 10% higher boost clock speed: 1124 MHz vs 1024 MHz
Around 52% lower typical power consumption: 33 Watt vs 50 Watt
2.2x more memory clock speed: 2002 MHz vs 900 MHz (1800 MHz effective)
Around 10% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 2188 vs 1991
Around 10% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 2188 vs 1991
3.3x better performance in GFXBench 4.0 - Manhattan (Frames): 2314 vs 694
3.3x better performance in GFXBench 4.0 - Manhattan (Fps): 2314 vs 694
2.8x better performance in GFXBench 4.0 - T-Rex (Frames): 3117 vs 1116
2.8x better performance in GFXBench 4.0 - T-Rex (Fps): 3117 vs 1116
Around 30% better performance in PassMark - G2D Mark: 266 vs 205
Around 32% better performance in PassMark - G3D Mark: 1180 vs 897

Specifications (specs)
Core clock speed	1029 MHz vs 730 MHz
Boost clock speed	1124 MHz vs 1024 MHz
Thermal Design Power (TDP)	33 Watt vs 50 Watt
Memory clock speed	2002 MHz vs 900 MHz (1800 MHz effective)
Benchmarks
GFXBench 4.0 - Car Chase Offscreen (Frames)	2188 vs 1991
GFXBench 4.0 - Car Chase Offscreen (Fps)	2188 vs 1991
GFXBench 4.0 - Manhattan (Frames)	2314 vs 694
GFXBench 4.0 - Manhattan (Fps)	2314 vs 694
GFXBench 4.0 - T-Rex (Frames)	3117 vs 1116
GFXBench 4.0 - T-Rex (Fps)	3117 vs 1116
PassMark - G2D Mark	266 vs 205
PassMark - G3D Mark	1180 vs 897

Compare benchmarks

GPU 1: AMD Radeon 620
GPU 2: NVIDIA GeForce 840A

GFXBench 4.0 - Car Chase Offscreen (Frames)

GPU 1

GPU 2

1991

2188

GFXBench 4.0 - Car Chase Offscreen (Fps)

GPU 1

GPU 2

1991

2188

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

694

2314

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

694

2314

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

1116

3117

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

1116

3117

PassMark - G2D Mark

GPU 1

GPU 2

205

266

PassMark - G3D Mark

GPU 1

GPU 2

897

1180

Name	AMD Radeon 620	NVIDIA GeForce 840A
GFXBench 4.0 - Car Chase Offscreen (Frames)	1991	2188
GFXBench 4.0 - Car Chase Offscreen (Fps)	1991	2188
GFXBench 4.0 - Manhattan (Frames)	694	2314
GFXBench 4.0 - Manhattan (Fps)	694	2314
GFXBench 4.0 - T-Rex (Frames)	1116	3117
GFXBench 4.0 - T-Rex (Fps)	1116	3117
PassMark - G2D Mark	205	266
PassMark - G3D Mark	897	1180
Geekbench - OpenCL		5596

Compare specifications (specs)

	AMD Radeon 620	NVIDIA GeForce 840A
Essentials
Architecture	GCN 3.0	Maxwell
Code name	Polaris 24	GM108
Launch date	13 May 2019	17 March 2014
Place in performance rating	1248	955
Type	Laptop	Desktop
Technical info
Boost clock speed	1024 MHz	1124 MHz
Compute units	6
Core clock speed	730 MHz	1029 MHz
Manufacturing process technology	28 nm	28 nm
Peak Double Precision (FP64) Performance	49.15 GFLOPS (1:16)
Peak Half Precision (FP16) Performance	786.4 GFLOPS (1:1)
Peak Single Precision (FP32) Performance	786.4 GFLOPS
Pipelines	384	384
Pixel fill rate	8.192 GPixel/s
Texture fill rate	24.58 GTexel/s	17.98 GTexel / s
Thermal Design Power (TDP)	50 Watt	33 Watt
Transistor count	1550 million
Floating-point performance		863.2 gflops
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x8	PCIe 3.0 x8
Supplementary power connectors	None
Width	IGP
API support
DirectX	12	12.0 (11_0)
OpenCL	2.0
OpenGL	4.6	4.6
Shader Model	6.3
Vulkan
Memory
Maximum RAM amount	2 GB	1 GB
Memory bandwidth	14.40 GB/s	16.02 GB / s
Memory bus width	64 bit	64 Bit
Memory clock speed	900 MHz (1800 MHz effective)	2002 MHz
Memory type	DDR3	DDR3