Radeon HD 3850 and Radeon HD 3450 PCI - video card comparison
Radeon HD 3850
Radeon HD 3450 PCI
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
RV670
RV620
Market segment
Desktop
Desktop
Release date
November 2007
January 2008
Interface
PCIe 2.0 x16
PCI
Supplementary power connectors
1x 6-pin
None
Core clock speed
668 MHz
600 MHz
Floating-point performance
427.5 gflops
48 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
666 million
181 million
Pipelines / CUDA cores
320
40
Power consumption (TDP)
75 Watt
25 Watt
Texture fill rate
10.69
2.400
Memory type
GDDR3
DDR2
Maximum RAM amount
1 GB
512 MB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1660 MHz
800 MHz
Memory bandwidth
53.12 GB/s
6.4 GB/s
Display Connectors
2x DVI, 1x S-Video
1x 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