Radeon HD 6390 and Radeon HD 5550 - video card comparison
Radeon HD 6390
Radeon HD 5550
Architecture
TeraScale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
Redwood
Redwood
Market segment
Desktop
Desktop
Release date
July 2011
February 2010
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Core clock speed
550 MHz
550 MHz
Floating-point performance
352.0 gflops
352.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
627 million
627 million
Pipelines / CUDA cores
320
320
Power consumption (TDP)
39 Watt
39 Watt
Texture fill rate
8.800
8.800
Memory type
DDR2
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1000 MHz
3200 MHz
Memory bandwidth
16 GB/s
51.2 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
11.2 (11_0)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.4
4.4
Shader Model
5.0
5.0
Vulkan
N/A
N/A