Radeon HD 3870 and GeForce 9800 GT Rebrand - video card comparison
Radeon HD 3870
GeForce 9800 GT Rebrand
Architecture
TeraScale (2005−2013)
Tesla (2006−2010)
GPU code name
RV670
G92
Market segment
Desktop
Desktop
Release date
November 2007
July 2008
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
777 MHz
725 MHz
Floating-point performance
497.3 gflops
448.0 gflops
Manufacturing process technology
55 nm
65 nm
Number of transistors
666 million
754 million
Pipelines / CUDA cores
320
128
Power consumption (TDP)
106 Watt
125 Watt
Texture fill rate
12.43
46.40
Memory type
GDDR4
GDDR3
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
2252 MHz
2000 MHz
Memory bandwidth
72.06 GB/s
64 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
11.1 (10_0)
CUDA
-
1.1
OpenCL
N/A
1.1
OpenGL
3.3
3.3
Shader Model
4.1
4.0
Vulkan
N/A
N/A