Radeon RX 560 and Radeon R9 255 OEM - video card comparison
Radeon RX 560
Radeon R9 255 OEM
Architecture
GCN 4.0 (2016−2020)
GCN 1.0 (2012−2020)
GPU code name
Polaris 21
Cape Verde
Market segment
Desktop
Desktop
Release date
April 2017
December 2013
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
1x 6-pin
Boost clock speed
1275 MHz
930 MHz
Core clock speed
1175 MHz
900 MHz
Floating-point performance
2,611 gflops
952.3 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
1,500 million
Pipelines / CUDA cores
1024
512
Power consumption (TDP)
75 Watt
65 Watt
Texture fill rate
81.60
29.76
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
7000 MHz
4600 MHz
Memory bandwidth
112.0 GB/s
73.6 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (12_0)
12 (11_1)
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
1.2.131