AMD Radeon E9390 PCIe vs AMD Radeon R9 M395X Mac Edition
GPU · Specs Compare
Graphics Card
Release Date
Oct 2019
May 2015
Generation
Embedded
Crystal System
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
713 MHz
—
Boost Clock
1089 MHz
—
Memory Clock
1250 MHz
1365 MHz
Memory
Memory Size
8GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
174.7GB/s
Render Config
Compute Units
28
32
Shading Units
1792
2048
TMUs
112
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
512 KB
Theoretical Performance
Pixel Rate
34.85 GPixel/s
29.09 GPixel/s
Texture Rate
122.0 GTexel/s
116.4 GTexel/s
FP16 (half)
3.903 TFLOPS
3.723 TFLOPS
FP32 (float)
3.903 TFLOPS
3.723 TFLOPS
FP64 (double)
243.9 GFLOPS
232.7 GFLOPS
Graphics Processor
GPU Name
Ellesmere
Amethyst
Architecture
GCN 4.0
GCN 3.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
5.7 billion
5 billion
Die Size
232 mm²
366 mm²
GPU Variant
—
Amethyst XT
Board Design
TDP
75W
250W
Outputs
4x DisplayPort 1.4a
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.2
1.2
Shader Model
6.4
6.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.