Radeon HD 3850 and Radeon HD 3690 - video card comparison
Radeon HD 3850
Radeon HD 3690
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
RV670
RV670
Market segment
Desktop
Desktop
Release date
November 2007
March 2008
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
668 MHz
670 MHz
Floating-point performance
427.5 gflops
428.8 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
666 million
666 million
Pipelines / CUDA cores
320
320
Power consumption (TDP)
75 Watt
75 Watt
Texture fill rate
10.69
10.72
Memory type
GDDR3
GDDR3
Maximum RAM amount
1 GB
256 MB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1660 MHz
1660 MHz
Memory bandwidth
53.12 GB/s
26.56 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
10.1 (10_1)
OpenCL
N/A
N/A
OpenGL
3.3
3.3
Shader Model
4.1
4.1
Vulkan
N/A
N/A