Radeon R7 450 OEM and Radeon R9 255 OEM - video card comparison
Radeon R7 450 OEM
Radeon R9 255 OEM
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Cape Verde
Cape Verde
Market segment
Desktop
Desktop
Release date
June 2016
December 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
1x 6-pin
Boost clock speed
-
930 MHz
Core clock speed
925 MHz
900 MHz
Floating-point performance
947.2 gflops
952.3 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
1,500 million
Pipelines / CUDA cores
512
512
Power consumption (TDP)
65 Watt
65 Watt
Texture fill rate
29.60
29.76
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
4600 MHz
Memory bandwidth
72 GB/s
73.6 GB/s
Display Connectors
1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
No outputs
HDMI
+
-
DirectX
12 (11_1)
12 (11_1)
OpenCL
2.1 (1.2)
1.2
OpenGL
4.6
4.6
Shader Model
6.5 (5.1)
5.1
Vulkan
1.2.170
1.2.131