Radeon 620 Mobile vs GeForce 805A
We compared two Mobile platform GPUs: 2GB VRAM Radeon 620 Mobile and 1024MB VRAM GeForce 805A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon 620 Mobile 's Advantages
Released 4 years and 10 months late
Boost Clock has increased by 35% (1024MHz vs 758MHz)
More VRAM (2GB vs 1024GB)
192 additional rendering cores
GeForce 805A 's Advantages
Larger VRAM bandwidth (16.02GB/s vs 14.40GB/s)
Lower TDP (15W vs 50W)
Score
Benchmark
FP32 (float)
Radeon 620 Mobile
+170%
786
GeForce 805A
291
Graphics Card
May 2019
Release Date
Jul 2014
Mobility Radeon
Generation
GeForce 800A
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x8
Clock Speeds
730 MHz
Base Clock
719 MHz
1024 MHz
Boost Clock
758 MHz
900 MHz
Memory Clock
1001 MHz
Memory
2GB
Memory Size
1024MB
DDR3
Memory Type
DDR3
64bit
Memory Bus
64bit
14.40GB/s
Bandwidth
16.02GB/s
Render Config
6
Compute Units
-
384
Shading Units
192
24
TMUs
16
8
ROPs
8
16 KB (per CU)
L1 Cache
16 KB (per SMX)
128 KB
L2 Cache
512 KB
Theoretical Performance
8.192 GPixel/s
Pixel Rate
6.064 GPixel/s
24.58 GTexel/s
Texture Rate
12.13 GTexel/s
786.4 GFLOPS
FP16 (half)
-
786.4 GFLOPS
FP32 (float)
291.1 GFLOPS
49.15 GFLOPS
FP64 (double)
12.13 GFLOPS
Board Design
50W
TDP
15W
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
Polaris 24
GPU Name
GK208
Polaris 24 XL
GPU Variant
-
GCN 3.0
Architecture
Kepler 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.55 billion
Transistors
1.02 billion
125 mm²
Die Size
87 mm²
Graphics Features
12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
3.0
1.2
Vulkan
1.1
-
CUDA
3.5
6.3
Shader Model
5.1