Radeon RX 550 and Radeon RX 580 XTR - video card comparison
Radeon RX 550
Radeon RX 580 XTR
Architecture
GCN 4.0 (2016−2020)
GCN 4.0 (2016−2020)
GPU code name
Lexa
Polaris 20
Market segment
Desktop
Desktop
Release date
April 2017
April 2017
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
1x 8-pin
Boost clock speed
1183 MHz
1340 MHz
Core clock speed
1100 MHz
1257 MHz
Floating-point performance
1,211 gflops
6,175 gflops
Manufacturing process technology
14 nm
14 nm
Number of transistors
2,200 million
5,700 million
Pipelines / CUDA cores
512
2304
Power consumption (TDP)
50 Watt
185 Watt
Texture fill rate
37.86
193.0
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
8 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
7000 MHz
8000 MHz
Memory bandwidth
112.0 GB/s
256.0 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
HDMI
+
+
DirectX
12 (12_0)
12.0 (12_0)
OpenCL
2.0
-
OpenGL
4.6
4.5
Shader Model
6.4
-
Vulkan
1.2.131
-