Radeon RX 580 and Radeon X1550 PCI - video card comparison
Radeon RX 580
Radeon X1550 PCI
Architecture
Polaris (2016−2019)
Ultra-Threaded SE
GPU code name
Polaris 20
RV516
Market segment
Desktop
Desktop
Release date
April 2017
2007
Interface
PCIe 3.0 x16
PCI
Supplementary power connectors
1x 8-pin
None
Boost clock speed
1340 MHz
-
Core clock speed
1257 MHz
452 MHz
Floating-point performance
6,175 gflops
-
Manufacturing process technology
14 nm
90 nm
Number of transistors
5,700 million
105 million
Pipelines / CUDA cores
2304
-
Power consumption (TDP)
185 Watt
27 Watt
Texture fill rate
193.0
1.808
Memory type
GDDR5
DDR2
Maximum RAM amount
8 GB
256 MB
Memory bus width
256 Bit
64 Bit
Memory clock speed
8000 MHz
532 MBps
Memory bandwidth
256.0 GB/s
4.256 GB/s
Display Connectors
1x HDMI, 3x DisplayPort
1x DVI, 1x VGA, 1x S-Video
HDMI
+
-
DirectX
12 (12_0)
9.0c (9_3)
OpenCL
2.0
N/A
OpenGL
4.6
2.1
Shader Model
6.4
3.0
Vulkan
1.2.131
N/A