AMD Radeon R9 M395X Mac Edition vs AMD Radeon Pro 580X
GPU · Specs Compare
Graphics Card
Release Date
May 2015
Mar 2019
Generation
Crystal System
Radeon Pro Mac
Type
Mobile
Mobile
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Memory Clock
1365 MHz
1710 MHz
Base Clock
—
1100 MHz
Boost Clock
—
1200 MHz
Memory
Memory Size
4GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
174.7GB/s
218.9GB/s
Render Config
Compute Units
32
36
Shading Units
2048
2304
TMUs
128
144
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
29.09 GPixel/s
38.40 GPixel/s
Texture Rate
116.4 GTexel/s
172.8 GTexel/s
FP16 (half)
3.723 TFLOPS
5.530 TFLOPS
FP32 (float)
3.723 TFLOPS
5.530 TFLOPS
FP64 (double)
232.7 GFLOPS
345.6 GFLOPS
Graphics Processor
GPU Name
Amethyst
Ellesmere
GPU Variant
Amethyst XT
Ellesmere XTA(216-0886220)
Architecture
GCN 3.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
5 billion
5.7 billion
Die Size
366 mm²
232 mm²
Board Design
TDP
250W
185W
Outputs
No outputs
2x HDMI 2.0b
Power Connectors
None
None
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.0
2.1
Vulkan
1.2
1.2
Shader Model
6.3
6.4
Benchmark
Blender
—
338
▲ Specs Compare
Data sourced from official specifications and benchmark tests.