Radeon HD 3850 and GeForce 9800 GT Rebrand - video card comparison
Radeon HD 3850
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
668 MHz
725 MHz
Floating-point performance
427.5 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)
75 Watt
125 Watt
Texture fill rate
10.69
46.40
Memory type
GDDR3
GDDR3
Maximum RAM amount
1 GB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1660 MHz
2000 MHz
Memory bandwidth
53.12 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