AMD Radeon R9 M390 Mac Edition vs AMD Radeon Pro V420
GPU Specs Compare
Graphics Card
Release Date
May 2015
Unknown
Generation
Crystal System
Radeon Pro Vega
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1365 MHz
800 MHz
Base Clock
-
800 MHz
Boost Clock
-
1700 MHz
Memory
Memory Size
2GB
32GB
Memory Type
GDDR5
HBM2
Memory Bus
256bit
4096bit
Bandwidth
174.7GB/s
819.2GB/s
Render Config
Compute Units
16
64
Shading Units
1024
4096
TMUs
64
256
ROPs
32
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
4 MB
Theoretical Performance
Pixel Rate
30.66 GPixel/s
108.8 GPixel/s
Texture Rate
61.31 GTexel/s
435.2 GTexel/s
FP32 (float)
1.962 TFLOPS
13.93 TFLOPS
FP64 (double)
122.6 GFLOPS
6.963 TFLOPS
FP16 (half)
-
27.85 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Vega 20
GPU Variant
Pitcairn PRO(215-0828062)
Vega 20 GLXT WS(215-0914026)
Architecture
GCN 1.0
GCN 5.1
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
2.8 billion
13.23 billion
Die Size
212 mm²
331 mm²
Board Design
TDP
80W
300W
Outputs
No outputs
6x mini-DisplayPort 1.4a
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
-
700 W
Graphics Features
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.3
Shader Model
5.1
6.7