GeForce 7900 GX2 and Radeon 550X - video card comparison
GeForce 7900 GX2
Radeon 550X
Architecture
Curie (2003−2013)
GCN 4.0 (2016−2020)
GPU code name
G71
Lexa
Market segment
Desktop
Desktop
Release date
April 2006
March 2019
Interface
PCIe 1.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 6-pin
None
Boost clock speed
-
1218 MHz
Core clock speed
500 MHz
1082 MHz
Manufacturing process technology
90 nm
14 nm
Number of transistors
278 million
2,200 million
Pipelines / CUDA cores
-
512
Power consumption (TDP)
-
50 Watt
Texture fill rate
12.00
38.98
Memory type
GDDR3
GDDR5
Maximum RAM amount
512 MB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1200 MHz
7000 MHz
Memory bandwidth
38.4 GB/s
112.0 GB/s
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
9.0c (9_3)
12 (12_0)
OpenCL
N/A
2.0
OpenGL
2.1
4.6
Shader Model
3.0
6.4
Vulkan
N/A
1.2.131