GeForce GT 550M and Mobility Radeon HD 3870 - video card comparison
GeForce GT 550M
Mobility Radeon HD 3870
Architecture
Fermi (2010−2014)
RV6xx (2007−2010)
GPU code name
N12P-GT
M88-XT
Market segment
Laptop
Laptop
Release date
January 2011
March 2008
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Core clock speed
740 MHz
660 MHz
CUDA cores
96
-
Floating-point performance
284.16 gflops
422.4 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
585 million
666 million
Pipelines / CUDA cores
96
320
Power consumption (TDP)
35 Watt
55 Watt
Texture fill rate
11.8 billion/sec
10.56
Memory type
DDR3
GDDR3
Maximum RAM amount
1536 MB
512 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
900 MHz
850 MHz
Memory bandwidth
28.8 GB/s
54.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 API
10.1 (10_1)
CUDA
+
-
OpenCL
1.1
N/A
OpenGL
4.5
3.3
Shader Model
5.1
4.1
Vulkan
N/A
N/A
Optimus
+
-