AMD Radeon Pro V420 vs AMD Radeon Pro V620
GPU · Specs Compare
Graphics Card
Release Date
Unknown
Nov 2021
Generation
Radeon Pro Vega
Radeon Pro
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
800 MHz
1825 MHz
Boost Clock
1700 MHz
2200 MHz
Memory Clock
800 MHz
2000 MHz
Memory
Memory Size
32GB
32GB
Memory Type
HBM2
GDDR6
Memory Bus
4096bit
256bit
Bandwidth
819.2GB/s
512.0GB/s
Render Config
Compute Units
64
72
Shading Units
4096
4608
TMUs
256
288
ROPs
64
128
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
4 MB
4 MB
RT Cores
—
72
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
108.8 GPixel/s
281.6 GPixel/s
Texture Rate
435.2 GTexel/s
633.6 GTexel/s
FP16 (half)
27.85 TFLOPS
40.55 TFLOPS
FP32 (float)
13.93 TFLOPS
20.28 TFLOPS
FP64 (double)
6.963 TFLOPS
1267 GFLOPS
Graphics Processor
GPU Name
Vega 20
Navi 21
GPU Variant
Vega 20 GLXT WS(215-0914026)
Navi 21 XT(215-121000177)
Architecture
GCN 5.1
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
7 nm
Transistors
13.23 billion
26.8 billion
Die Size
331 mm²
520 mm²
Board Design
TDP
300W
300W
Suggested PSU
700 W
700 W
Outputs
6x mini-DisplayPort 1.4a
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
2x 8-pin
Graphics Features
DirectX
12 (12_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.3
Shader Model
6.7
6.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.