Radeon R7 450 OEM and Radeon RX 455 OEM - video card comparison
Radeon R7 450 OEM
Radeon RX 455 OEM
Architecture
GCN 1.0 (2012−2020)
GCN 2.0 (2013−2017)
GPU code name
Cape Verde
Tobago
Market segment
Desktop
Desktop
Release date
June 2016
June 2016
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
1x 6-pin
Core clock speed
925 MHz
1050 MHz
Floating-point performance
947.2 gflops
1,613 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
2,080 million
Pipelines / CUDA cores
512
768
Power consumption (TDP)
65 Watt
100 Watt
Texture fill rate
29.60
50.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4.5 GB/s
6500 MHz
Memory bandwidth
72 GB/s
104.0 GB/s
Display Connectors
1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 (11_1)
12 (12_0)
OpenCL
2.1 (1.2)
2.0
OpenGL
4.6
4.6
Shader Model
6.5 (5.1)
6.3
Vulkan
1.2.170
1.2.131