AMD Radeon RX 580G vs AMD Radeon R9 M390 Mac Edition
GPU Specs Compare
Graphics Card
Release Date
Oct 2018
May 2015
Generation
Polaris
Crystal System
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1257 MHz
-
Boost Clock
1330 MHz
-
Memory Clock
2000 MHz
1365 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
256.0GB/s
174.7GB/s
Render Config
Compute Units
36
16
Shading Units
2304
1024
TMUs
144
64
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
512 KB
Theoretical Performance
Pixel Rate
42.56 GPixel/s
30.66 GPixel/s
Texture Rate
191.5 GTexel/s
61.31 GTexel/s
FP16 (half)
6.129 TFLOPS
-
FP32 (float)
6.129 TFLOPS
1.962 TFLOPS
FP64 (double)
383.0 GFLOPS
122.6 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Pitcairn
GPU Variant
Polaris 20 XTX(215-0910038)
Pitcairn PRO(215-0828062)
Architecture
GCN 4.0
GCN 1.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
5.7 billion
2.8 billion
Die Size
232 mm²
212 mm²
Board Design
TDP
185W
80W
Suggested PSU
450 W
-
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
No outputs
Power Connectors
1x 8-pin
None
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.2
1.2
Shader Model
6.4
5.1