AMD Radeon RX 580X Mobile vs AMD Radeon R9 M290X Mac Edition
GPU · Specs Compare
Graphics Card
Release Date
Apr 2018
Nov 2014
Generation
Mobility Radeon
Crystal System
Type
Mobile
Mobile
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Base Clock
1000 MHz
850 MHz
Boost Clock
1077 MHz
975 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
34.46 GPixel/s
31.20 GPixel/s
Texture Rate
155.1 GTexel/s
62.40 GTexel/s
FP16 (half)
4.963 TFLOPS
—
FP32 (float)
4.963 TFLOPS
1.997 TFLOPS
FP64 (double)
310.2 GFLOPS
124.8 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Pitcairn
GPU Variant
Polaris 20M XT
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
100W
80W
Outputs
No outputs
No outputs
Power Connectors
None
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
▲ Specs Compare
Data sourced from official specifications and benchmark tests.