NVIDIA RTX A4 Mobile vs NVIDIA Quadro P620
We compared two Professional market GPUs: 4GB VRAM RTX A4 Mobile and 2GB VRAM Quadro P620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA RTX A4 Mobile 's Advantages
Released 3 years and 2 months late
Boost Clock has increased by 31% (1770MHz vs 1354MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (224.0GB/s vs 80.13GB/s)
1536 additional rendering cores
Score
Benchmark
FP32 (float)
RTX A4 Mobile
+423%
7.25 TFLOPS
Quadro P620
1.386 TFLOPS
Graphics Card
Apr 2021
Release Date
Feb 2018
Quadro Ampere-M
Generation
Quadro
Professional
Type
Professional
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
1297 MHz
Base Clock
1266 MHz
1770 MHz
Boost Clock
1354 MHz
1750 MHz
Memory Clock
1252 MHz
Memory
4GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
128bit
Memory Bus
128bit
224.0GB/s
Bandwidth
80.13GB/s
Render Config
-
-
-
16
SM Count
4
2048
Shading Units
512
64
TMUs
32
32
ROPs
16
64
Tensor Cores
-
16
RT Cores
-
128 KB (per SM)
L1 Cache
48 KB (per SM)
2 MB
L2 Cache
1024 KB
-
-
-
Theoretical Performance
56.64 GPixel/s
Pixel Rate
21.66 GPixel/s
113.3 GTexel/s
Texture Rate
43.33 GTexel/s
7.250 TFLOPS
FP16 (half)
21.66 GFLOPS
7.250 TFLOPS
FP32 (float)
1386 GFLOPS
113.3 GFLOPS
FP64 (double)
43.33 GFLOPS
Board Design
Unknown
TDP
40W
-
Suggested PSU
200 W
Portable Device Dependent
Outputs
4x mini-DisplayPort 1.4a
None
Power Connectors
None
Graphics Processor
GA107
GPU Name
GP107
-
-
-
Ampere
Architecture
Pascal
Samsung
Foundry
Samsung
8 nm
Process Size
14 nm
8.7 billion
Transistors
3.3 billion
200 mm²
Die Size
132 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_1)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
8.6
CUDA
6.1
6.7
Shader Model
6.4
