Radeon HD 8490 OEM and Radeon HD 3450 X2 - video card comparison
Radeon HD 8490 OEM
Radeon HD 3450 X2
Architecture
TeraScale 2 (2009−2015)
TeraScale (2005−2013)
GPU code name
Caicos
RV620
Market segment
Desktop
Desktop
Release date
July 2013
December 2007
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Core clock speed
875 MHz
600 MHz
Floating-point performance
280.0 gflops
2x 48 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
370 million
181 million
Pipelines / CUDA cores
160
40
Power consumption (TDP)
35 Watt
50 Watt
Texture fill rate
7.000
2.400
Memory type
DDR3
DDR2
Maximum RAM amount
1 GB
512 MB
Memory bus width
64 Bit
64 Bit
Memory clock speed
1800 MHz
1000 MHz
Memory bandwidth
14.4 GB/s
8 GB/s
Display Connectors
1x DVI, 1x DisplayPort
2x DMS-59
DirectX
11.2 (11_0)
10.1 (10_1)
OpenCL
1.2
N/A
OpenGL
4.4
3.3
Shader Model
5.0
4.1
Vulkan
N/A
N/A