Radeon HD 3870 X2 and Radeon HD 6550A - video card comparison
Passmark - benchmark score Radeon HD 3870 X2 vs Radeon HD 6550A
Radeon HD 3870 X2
729
Radeon HD 6550A
728
Radeon HD 3870 X2
Radeon HD 6550A
Architecture
TeraScale (2005−2013)
TeraScale 2 (2009−2015)
GPU code name
R680
Pinewood
Market segment
Desktop
Desktop
Release date
January 2008
February 2011
Interface
PCIe 2.0 x16
MXM-A (3.0)
Supplementary power connectors
1x 6-pin + 1x 8-pin
-
Core clock speed
825 MHz
550 MHz
Floating-point performance
2x 528.0 gflops
624.0 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
666 million
627 million
Pipelines / CUDA cores
320
480
Power consumption (TDP)
165 Watt
35 Watt
Texture fill rate
13.20
13.20
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1802 MHz
1600 MHz
Memory bandwidth
57.66 GB/s
25.6 GB/s
Display Connectors
2x DVI, 1x S-Video
No outputs
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