Radeon R9 M395X Mac Edition vs Radeon Pro 580
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 8GB VRAM Radeon Pro 580 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon Pro 580 's Advantages
Released 2 years and 1 months late
Boost Clock1200MHz
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (217.0GB/s vs 174.7GB/s)
256 additional rendering cores
Lower TDP (185W vs 250W)
Score
Benchmark
FP32 (float)
Radeon R9 M395X Mac Edition
3723
Radeon Pro 580
+48%
5530
Graphics Card
May 2015
Release Date
Jun 2017
Crystal System
Generation
Radeon Pro Mac
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
1100 MHz
-
Boost Clock
1200 MHz
1365 MHz
Memory Clock
1695 MHz
Memory
4GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
174.7GB/s
Bandwidth
217.0GB/s
Render Config
32
Compute Units
36
2048
Shading Units
2304
128
TMUs
144
32
ROPs
32
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
2 MB
Theoretical Performance
29.09 GPixel/s
Pixel Rate
38.40 GPixel/s
116.4 GTexel/s
Texture Rate
172.8 GTexel/s
3.723 TFLOPS
FP16 (half)
5.530 TFLOPS
3.723 TFLOPS
FP32 (float)
5.530 TFLOPS
232.7 GFLOPS
FP64 (double)
345.6 GFLOPS
Board Design
250W
TDP
185W
No outputs
Outputs
No outputs
None
Power Connectors
None
Graphics Processor
Amethyst
GPU Name
Ellesmere
Amethyst XT
GPU Variant
Ellesmere XTA
(216-0886220)
GCN 3.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
5 billion
Transistors
5.7 billion
366 mm²
Die Size
232 mm²
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.0
OpenCL
2.1
1.2
Vulkan
1.2
6.3
Shader Model
6.4
