Radeon R7 450 OEM and GeForce 7900 GX2 - video card comparison
Radeon R7 450 OEM
GeForce 7900 GX2
Architecture
GCN 1.0 (2012−2020)
Curie (2003−2013)
GPU code name
Cape Verde
G71
Market segment
Desktop
Desktop
Release date
June 2016
April 2006
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
2x 6-pin
Core clock speed
925 MHz
500 MHz
Floating-point performance
947.2 gflops
-
Manufacturing process technology
28 nm
90 nm
Number of transistors
1,500 million
278 million
Pipelines / CUDA cores
512
-
Power consumption (TDP)
65 Watt
-
Texture fill rate
29.60
12.00
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
512 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
4.5 GB/s
1200 MHz
Memory bandwidth
72 GB/s
38.4 GB/s
Display Connectors
1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (11_1)
9.0c (9_3)
OpenCL
2.1 (1.2)
N/A
OpenGL
4.6
2.1
Shader Model
6.5 (5.1)
3.0
Vulkan
1.2.170
N/A