Radeon HD 4870 and GeForce 7900 GT - video card comparison
Passmark - benchmark score Radeon HD 4870 vs GeForce 7900 GT
Radeon HD 4870
1411
GeForce 7900 GT
266
Radeon HD 4870
GeForce 7900 GT
Architecture
TeraScale (2005−2013)
Curie (2003−2013)
GPU code name
RV770
G71
Market segment
Desktop
Desktop
Release date
June 2008
March 2006
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
Core clock speed
750 MHz
450 MHz
Floating-point performance
1,200.0 gflops
-
Manufacturing process technology
55 nm
90 nm
Number of transistors
956 million
278 million
Pipelines / CUDA cores
800
-
Power consumption (TDP)
150 Watt
48 Watt
Texture fill rate
30.00
10.80
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
256 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
3600 MHz
1320 MHz
Memory bandwidth
115.2 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