Radeon HD 4770 and GeForce 7900 GT - video card comparison
Passmark - benchmark score Radeon HD 4770 vs GeForce 7900 GT
Radeon HD 4770
935
GeForce 7900 GT
266
Radeon HD 4770
GeForce 7900 GT
Architecture
TeraScale (2005−2013)
Curie (2003−2013)
GPU code name
RV740
G71
Market segment
Desktop
Desktop
Release date
April 2009
March 2006
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
750 MHz
450 MHz
Floating-point performance
960.0 gflops
-
Manufacturing process technology
40 nm
90 nm
Number of transistors
826 million
278 million
Pipelines / CUDA cores
640
-
Power consumption (TDP)
80 Watt
48 Watt
Texture fill rate
24.00
10.80
Memory type
GDDR5
GDDR3
Maximum RAM amount
512 MB
256 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
3200 MHz
1320 MHz
Memory bandwidth
51.2 GB/s
42.24 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
9.0c (9_3)
OpenCL
1.1
N/A
OpenGL
3.3
2.1
Shader Model
4.1
3.0
Vulkan
N/A
N/A