Radeon RX 550 and Radeon HD 5450 PCIe x1 - video card comparison
Radeon RX 550
Radeon HD 5450 PCIe x1
Architecture
GCN 4.0 (2016−2020)
TeraScale 2 (2009−2015)
GPU code name
Lexa
Cedar
Market segment
Desktop
Desktop
Release date
April 2017
February 2010
Interface
PCIe 3.0 x8
PCIe 2.0 x1
Supplementary power connectors
None
-
Boost clock speed
1183 MHz
-
Core clock speed
1100 MHz
650 MHz
Floating-point performance
1,211 gflops
104 gflops
Manufacturing process technology
14 nm
40 nm
Number of transistors
2,200 million
292 million
Pipelines / CUDA cores
512
80
Power consumption (TDP)
50 Watt
19 Watt
Texture fill rate
37.86
5.200
Memory type
GDDR5
DDR3
Maximum RAM amount
4 GB
512 MB
Memory bus width
128 Bit
64 Bit
Memory clock speed
7000 MHz
1000 MHz
Memory bandwidth
112.0 GB/s
8 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
12 (12_0)
11.2 (11_0)
OpenCL
2.0
1.2
OpenGL
4.6
4.4
Shader Model
6.4
5.0
Vulkan
1.2.131
N/A