AMD Radeon R9 M390 Mac Edition vs AMD Radeon RX 470 Mobile
GPU · Specs Compare
Graphics Card
Release Date
May 2015
Aug 2016
Generation
Crystal System
Mobility Radeon
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Memory Clock
1365 MHz
1750 MHz
Base Clock
—
926 MHz
Boost Clock
—
1074 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
174.7GB/s
224.0GB/s
Render Config
Compute Units
16
32
Shading Units
1024
2048
TMUs
64
128
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
34.37 GPixel/s
Texture Rate
61.31 GTexel/s
137.5 GTexel/s
FP32 (float)
1.962 TFLOPS
4.399 TFLOPS
FP64 (double)
122.6 GFLOPS
274.9 GFLOPS
FP16 (half)
—
4.399 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Ellesmere
GPU Variant
Pitcairn PRO(215-0828062)
Ellesmere PRO
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
2.8 billion
5.7 billion
Die Size
212 mm²
232 mm²
Board Design
TDP
80W
85W
Outputs
No outputs
No outputs
Power Connectors
None
None
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
▲ Specs Compare
Data sourced from official specifications and benchmark tests.