AMD Radeon RX 580X vs AMD Radeon R9 M295X
GPU · Specs Compare
Graphics Card
Release Date
Apr 2018
Nov 2014
Generation
Polaris
Crystal System
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
1257 MHz
—
Boost Clock
1340 MHz
—
Memory Clock
2000 MHz
1250 MHz
Memory
Memory Size
8GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
256.0GB/s
160.0GB/s
Render Config
Compute Units
36
32
Shading Units
2304
2048
TMUs
144
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
512 KB
Theoretical Performance
Pixel Rate
42.88 GPixel/s
23.14 GPixel/s
Texture Rate
193.0 GTexel/s
92.54 GTexel/s
FP16 (half)
6.175 TFLOPS
2.961 TFLOPS
FP32 (float)
6.175 TFLOPS
2.961 TFLOPS
FP64 (double)
385.9 GFLOPS
185.1 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Amethyst
GPU Variant
Polaris 20 XTX(215-0910038)
Amethyst XT
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
Board Design
TDP
185W
250W
Suggested PSU
450 W
—
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
No outputs
Power Connectors
1x 8-pin
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.