AMD Radeon R9 M390 Mac Edition vs AMD Radeon RX 590
GPU Specs Compare
Graphics Card
Release Date
May 2015
Nov 2018
Generation
Crystal System
Polaris
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1365 MHz
2000 MHz
Base Clock
-
1469 MHz
Boost Clock
-
1545 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
174.7GB/s
256.0GB/s
Render Config
Compute Units
16
36
Shading Units
1024
2304
TMUs
64
144
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
30.66 GPixel/s
49.44 GPixel/s
Texture Rate
61.31 GTexel/s
222.5 GTexel/s
FP32 (float)
1.962 TFLOPS
7.119 TFLOPS
FP64 (double)
122.6 GFLOPS
445.0 GFLOPS
FP16 (half)
-
7.119 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Polaris 30
GPU Variant
Pitcairn PRO(215-0828062)
Polaris 30 XT(215-0922006)
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
12 nm
Transistors
2.8 billion
5.7 billion
Die Size
212 mm²
232 mm²
Board Design
TDP
80W
175W
Outputs
No outputs
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
None
1x 8-pin
Suggested PSU
-
450 W
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.2
Shader Model
5.1
6.4