AMD Radeon Pro V620 vs AMD Radeon RX 580 Mobile
GPU · Specs Compare
Graphics Card
Release Date
Nov 2021
Apr 2017
Generation
Radeon Pro
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
1825 MHz
1000 MHz
Boost Clock
2200 MHz
1077 MHz
Memory Clock
2000 MHz
2000 MHz
Memory
Memory Size
32GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
512.0GB/s
256.0GB/s
Render Config
Compute Units
72
36
Shading Units
4608
2304
TMUs
288
144
ROPs
128
32
RT Cores
72
—
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
2 MB
L3 Cache
128 MB
—
Theoretical Performance
Pixel Rate
281.6 GPixel/s
34.46 GPixel/s
Texture Rate
633.6 GTexel/s
155.1 GTexel/s
FP16 (half)
40.55 TFLOPS
4.963 TFLOPS
FP32 (float)
20.28 TFLOPS
4.963 TFLOPS
FP64 (double)
1267 GFLOPS
310.2 GFLOPS
Graphics Processor
GPU Name
Navi 21
Polaris 20
GPU Variant
Navi 21 XT(215-121000177)
Polaris 20M XT
Architecture
RDNA 2.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
7 nm
14 nm
Transistors
26.8 billion
5.7 billion
Die Size
520 mm²
232 mm²
Board Design
TDP
300W
100W
Suggested PSU
700 W
—
Outputs
No outputs
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.2
Shader Model
6.5
6.4
Benchmark
3DMark Time Spy
—
3,553
3DMark Time Spy Extreme
—
1,626
▲ Specs Compare
Data sourced from official specifications and benchmark tests.