AMD Radeon R9 M295X Mac Edition vs AMD Radeon RX 580
GPU Specs Compare
Graphics Card
Release Date
Nov 2014
Apr 2017
Generation
Crystal System
Polaris
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Memory Clock
1362 MHz
2000 MHz
Base Clock
-
1257 MHz
Boost Clock
-
1340 MHz
Memory
Memory Size
4GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
174.3GB/s
256.0GB/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
27.20 GPixel/s
42.88 GPixel/s
Texture Rate
108.8 GTexel/s
193.0 GTexel/s
FP16 (half)
3.482 TFLOPS
6.175 TFLOPS
FP32 (float)
3.482 TFLOPS
6.175 TFLOPS
FP64 (double)
217.6 GFLOPS
385.9 GFLOPS
Graphics Processor
GPU Name
Amethyst
Polaris 20
GPU Variant
Amethyst XT
Polaris 20 XTX(215-0910038)
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
1x HDMI 2.0b3x DisplayPort 1.4a
Suggested PSU
-
450 W
Power Connectors
-
1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.0
2.1
Vulkan
1.2
1.3
Shader Model
6.3
6.7