Radeon 620 Mobile vs GeForce 945A
We compared two Mobile platform GPUs: 2GB VRAM Radeon 620 Mobile and 1024MB VRAM GeForce 945A 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 2 months late
More VRAM (2GB vs 1024GB)
GeForce 945A 's Advantages
Boost Clock has increased by 16% (1189MHz vs 1024MHz)
Larger VRAM bandwidth (40.10GB/s vs 14.40GB/s)
Lower TDP (33W vs 50W)
Score
Benchmark
FP32 (float)
Radeon 620 Mobile
786
GeForce 945A
+16%
913
Graphics Card
May 2019
Release Date
Mar 2015
Mobility Radeon
Generation
GeForce 900A
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x8
Clock Speeds
730 MHz
Base Clock
1006 MHz
1024 MHz
Boost Clock
1189 MHz
900 MHz
Memory Clock
1253 MHz
Memory
2GB
Memory Size
1024MB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
64bit
14.40GB/s
Bandwidth
40.10GB/s
Render Config
6
Compute Units
-
384
Shading Units
384
24
TMUs
24
8
ROPs
8
16 KB (per CU)
L1 Cache
64 KB (per SMM)
128 KB
L2 Cache
1024 KB
Theoretical Performance
8.192 GPixel/s
Pixel Rate
9.512 GPixel/s
24.58 GTexel/s
Texture Rate
28.54 GTexel/s
786.4 GFLOPS
FP16 (half)
-
786.4 GFLOPS
FP32 (float)
913.2 GFLOPS
49.15 GFLOPS
FP64 (double)
28.54 GFLOPS
Board Design
50W
TDP
33W
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
Polaris 24
GPU Name
GM108
Polaris 24 XL
GPU Variant
-
GCN 3.0
Architecture
Maxwell
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.55 billion
Transistors
Unknown
125 mm²
Die Size
Unknown
Graphics Features
12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
3.0
1.2
Vulkan
1.3
-
CUDA
5.0
6.3
Shader Model
5.1