AMD Radeon Pro Vega 20 vs AMD Radeon Pro V620
GPU Specs Compare
Graphics Card
Release Date
Nov 2018
Nov 2021
Generation
Radeon Pro Mac
Radeon Pro
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
815 MHz
1825 MHz
Boost Clock
1283 MHz
2200 MHz
Memory Clock
740 MHz
2000 MHz
Memory
Memory Size
4GB
32GB
Memory Type
HBM2
GDDR6
Memory Bus
1024bit
256bit
Bandwidth
189.4GB/s
512.0GB/s
Render Config
Compute Units
20
72
Shading Units
1280
4608
TMUs
80
288
ROPs
32
128
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
1024 KB
4 MB
RT Cores
-
72
L3 Cache
-
128 MB
Theoretical Performance
Pixel Rate
41.06 GPixel/s
281.6 GPixel/s
Texture Rate
102.6 GTexel/s
633.6 GTexel/s
FP16 (half)
6.569 TFLOPS
40.55 TFLOPS
FP32 (float)
3.284 TFLOPS
20.28 TFLOPS
FP64 (double)
205.3 GFLOPS
1267 GFLOPS
Graphics Processor
GPU Name
Vega 12
Navi 21
GPU Variant
Vega 12 XTA
Navi 21 XT(215-121000177)
Architecture
GCN 5.0
RDNA 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
7 nm
Transistors
Unknown
26.8 billion
Die Size
Unknown
520 mm²
Board Design
TDP
100W
300W
Outputs
No outputs
No outputs
Suggested PSU
-
700 W
Power Connectors
-
2x 8-pin
Graphics Features
DirectX
12 (12_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2
1.3
Shader Model
6.3
6.5
📊 Benchmark
3DMark Time Spy
2,596
-
3DMark Time Spy Extreme
1,211
-