Radeon RX 550 and Radeon RX 550 640SP - video card comparison
Radeon RX 550
Radeon RX 550 640SP
Architecture
GCN 4.0 (2016−2020)
GCN 4.0 (2016−2020)
GPU code name
Lexa
Baffin
Market segment
Desktop
Desktop
Release date
April 2017
October 2017
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
7000 MHz
6000 MHz
Memory bandwidth
112.0 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