Radeon RX 550X 640SP and Radeon RX 590 - video card comparison
Radeon RX 550X 640SP
Radeon RX 590
Architecture
GCN 4.0 (2016−2020)
Polaris (2016−2019)
GPU code name
Baffin
Polaris 30
Market segment
Desktop
Desktop
Release date
April 2018
November 2018
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
1x 8-pin
Boost clock speed
1071 MHz
1545 MHz
Core clock speed
1019 MHz
1469 MHz
Floating-point performance
1,371 gflops
-
Manufacturing process technology
14 nm
12 nm
Number of transistors
3,000 million
5,700 million
Pipelines / CUDA cores
640
2304
Power consumption (TDP)
60 Watt
175 Watt
Texture fill rate
42.84
222.5
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
8 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
6000 MHz
8000 MHz
Memory bandwidth
96 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
HDMI
+
+
DirectX
12 (12_0)
12 (12_0)
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.4
6.4
Vulkan
1.2.131
1.2.131
FreeSync
-
+