AMD Radeon RX 580G vs AMD Radeon RX 560X
GPU · Specs Compare
Graphics Card
Release Date
Oct 2018
Apr 2018
Generation
Polaris
Polaris
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Clock Speeds
Base Clock
1257 MHz
1175 MHz
Boost Clock
1330 MHz
1275 MHz
Memory Clock
2000 MHz
1750 MHz
Memory
Memory Size
8GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
256.0GB/s
112.0GB/s
Render Config
Compute Units
36
16
Shading Units
2304
1024
TMUs
144
64
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
1024 KB
Theoretical Performance
Pixel Rate
42.56 GPixel/s
20.40 GPixel/s
Texture Rate
191.5 GTexel/s
81.60 GTexel/s
FP16 (half)
6.129 TFLOPS
2.611 TFLOPS
FP32 (float)
6.129 TFLOPS
2.611 TFLOPS
FP64 (double)
383.0 GFLOPS
163.2 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Polaris 21
GPU Variant
Polaris 20 XTX(215-0910038)
Polaris 21 XT(215-0908004)
Architecture
GCN 4.0
GCN 4.0
Foundry
GlobalFoundries
GlobalFoundries
Process Size
14 nm
14 nm
Transistors
5.7 billion
3 billion
Die Size
232 mm²
123 mm²
Board Design
TDP
185W
75W
Suggested PSU
450 W
250 W
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Power Connectors
1x 8-pin
None
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2
1.2
Shader Model
6.4
6.4
▲ Specs Compare
Data sourced from official specifications and benchmark tests.