AMD Radeon R9 M390 Mac Edition vs AMD Radeon E9260 PCIe
GPU · Specs Compare
Graphics Card
Release Date
May 2015
Sep 2016
Generation
Crystal System
Embedded
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Clock Speeds
Memory Clock
1365 MHz
1750 MHz
Base Clock
—
1090 MHz
Boost Clock
—
1200 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
174.7GB/s
112.0GB/s
Render Config
Compute Units
16
14
Shading Units
1024
896
TMUs
64
48
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Theoretical Performance
Pixel Rate
30.66 GPixel/s
19.20 GPixel/s
Texture Rate
61.31 GTexel/s
57.60 GTexel/s
FP32 (float)
1.962 TFLOPS
2.150 TFLOPS
FP64 (double)
122.6 GFLOPS
134.4 GFLOPS
FP16 (half)
—
2.150 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Baffin
GPU Variant
Pitcairn PRO(215-0828062)
Baffin E9260(216-0885288)
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
2.8 billion
3 billion
Die Size
212 mm²
123 mm²
Board Design
TDP
80W
80W
Outputs
No outputs
4x mini-DisplayPort 1.4a
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
1.3
Shader Model
5.1
6.7
▲ Specs Compare
Data sourced from official specifications and benchmark tests.