Radeon HD 8550M and Radeon HD 3870 - video card comparison
Radeon HD 8550M
Radeon HD 3870
Architecture
GCN (2011−2017)
TeraScale (2005−2013)
GPU code name
Sun
RV670
Market segment
Laptop
Desktop
Release date
November 2012
November 2007
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
-
1x 6-pin
Boost clock speed
850 MHz
-
Core clock speed
700 MHz
777 MHz
Floating-point performance
544.0 gflops
497.3 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
690 million
666 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
-
106 Watt
Texture fill rate
17.00
12.43
Memory type
DDR3
GDDR4
Maximum RAM amount
1 GB
512 MB
Memory bus width
64 Bit
256 Bit
Memory clock speed
1800 MHz
2252 MHz
Memory bandwidth
14.4 GB/s
72.06 GB/s
Shared memory
-
-
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
12 (11_1)
10.1 (10_1)
OpenCL
1.2
N/A
OpenGL
4.6
3.3
Shader Model
5.1
4.1
Vulkan
1.2.131
N/A