Radeon HD 3450 and Radeon HD 6870 1600SP Edition - video card comparison
Radeon HD 3450
Radeon HD 6870 1600SP Edition
Architecture
TeraScale (2005−2013)
TeraScale 2 (2009−2015)
GPU code name
RV620
Cypress
Market segment
Desktop
Desktop
Release date
December 2007
January 2013
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
2x 6-pin
Core clock speed
600 MHz
850 MHz
Floating-point performance
48 gflops
2,720 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
181 million
2,154 million
Pipelines / CUDA cores
40
1600
Power consumption (TDP)
25 Watt
175 Watt
Texture fill rate
2.400
68.00
Memory type
DDR2
GDDR5
Maximum RAM amount
256 MB
1 GB
Memory bus width
64 Bit
256 Bit
Memory clock speed
1000 MHz
4200 MHz
Memory bandwidth
8 GB/s
134.4 GB/s
Display Connectors
1x DVI, 1x VGA, 1x S-Video
2x DVI, 1x HDMI, 2x mini-DisplayPort
HDMI
-
+
DirectX
10.1 (10_1)
11.2 (11_0)
OpenCL
N/A
1.2
OpenGL
3.3
4.4
Shader Model
4.1
5.0
Vulkan
N/A
N/A