Radeon RX 550X and Radeon RX 550X 640SP - video card comparison
Radeon RX 550X
Radeon RX 550X 640SP
Architecture
GCN 4.0 (2016−2020)
GCN 4.0 (2016−2020)
GPU code name
Lexa
Baffin
Market segment
Desktop
Desktop
Release date
December 2018
April 2018
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
1183 MHz
1071 MHz
Core clock speed
1100 MHz
1019 MHz
Floating-point performance
1,211 gflops
1,371 gflops
Manufacturing process technology
14 nm
14 nm
Number of transistors
2,200 million
3,000 million
Pipelines / CUDA cores
512
640
Power consumption (TDP)
50 Watt
60 Watt
Texture fill rate
37.86
42.84
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
6000 MHz
6000 MHz
Memory bandwidth
96 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
1.2.131