Radeon R7 450 OEM and GeForce GTX 645 OEM - video card comparison
Radeon R7 450 OEM
GeForce GTX 645 OEM
Architecture
GCN 1.0 (2012−2020)
Kepler (2012−2018)
GPU code name
Cape Verde
GK106
Market segment
Desktop
Desktop
Release date
June 2016
April 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
None
Core clock speed
925 MHz
824 MHz
Floating-point performance
947.2 gflops
949.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
2,540 million
Pipelines / CUDA cores
512
576
Power consumption (TDP)
65 Watt
65 Watt
Texture fill rate
29.60
39.55
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4.5 GB/s
4000 MHz
Memory bandwidth
72 GB/s
64 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 (11_0)
CUDA
-
3.0
OpenCL
2.1 (1.2)
1.2
OpenGL
4.6
4.6
Shader Model
6.5 (5.1)
5.1
Vulkan
1.2.170
1.1.126