Radeon RX 550 640SP and Neptune - video card comparison
Radeon RX 550 640SP
Neptune
Architecture
GCN 4.0 (2016−2020)
GCN 1.0 (2012−2020)
GPU code name
Baffin
Neptune
Market segment
Desktop
Desktop
Release date
October 2017
-
Interface
PCIe 3.0 x8
-
Supplementary power connectors
None
-
Boost clock speed
1071 MHz
-
Core clock speed
1019 MHz
-
Floating-point performance
1,371 gflops
-
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
2,800 million
Pipelines / CUDA cores
640
1280
Power consumption (TDP)
60 Watt
-
Texture fill rate
42.84
-
Memory type
GDDR5
-
Maximum RAM amount
2 GB
-
Memory bus width
128 Bit
-
Memory clock speed
6000 MHz
-
Memory bandwidth
96 GB/s
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
-
HDMI
+
-
DirectX
12 (12_0)
12 (11_1)
OpenCL
2.0
2.1 (1.2)
OpenGL
4.6
4.6
Shader Model
6.4
6.5 (5.1)
Vulkan
1.2.131
1.2.170