Radeon R9 255 OEM and Radeon RX 550 512SP - video card comparison
Radeon R9 255 OEM
Radeon RX 550 512SP
Architecture
GCN 1.0 (2012−2020)
GCN 4.0 (2016−2020)
GPU code name
Cape Verde
Baffin
Market segment
Desktop
Desktop
Release date
December 2013
October 2017
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin
None
Boost clock speed
930 MHz
1071 MHz
Core clock speed
900 MHz
-
Floating-point performance
952.3 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,500 million
3,000 million
Pipelines / CUDA cores
512
512
Power consumption (TDP)
65 Watt
50 Watt
Texture fill rate
29.76
34.27
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4600 MHz
6 GB/s
Memory bandwidth
73.6 GB/s
96 GB/s
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
12 (11_1)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.2.131
1.2