Radeon 550X 640SP and Radeon RX 550 512SP - video card comparison
Radeon 550X 640SP
Radeon RX 550 512SP
Architecture
GCN 4.0 (2016−2020)
GCN 4.0 (2016−2020)
GPU code name
Lexa
Baffin
Market segment
Desktop
Desktop
Release date
April 2018
October 2017
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
1071 MHz
1071 MHz
Core clock speed
1019 MHz
-
Floating-point performance
1,371 gflops
-
Manufacturing process technology
14 nm
14 nm
Number of transistors
2,200 million
3,000 million
Pipelines / CUDA cores
640
512
Power consumption (TDP)
50 Watt
50 Watt
Texture fill rate
42.84
34.27
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
6000 MHz
6 GB/s
Memory bandwidth
48 GB/s
96 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x 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