GeForce GT 650M SLI and GeForce GT 555M - video card comparison
GeForce GT 650M SLI
GeForce GT 555M
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
N13E-GE
N12E-GE-B
Market segment
Laptop
Laptop
Release date
March 2012
January 2011
Bus support
-
PCI Express 2.0
Interface
-
PCIe 2.0 x16
SLI options
-
+
Boost clock speed
835 MHz
753 MHz
Core clock speed
790 MHz
Up to 753 MHz
CUDA cores
-
Up to 144
Floating-point performance
-
388.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
-
1,170 million
Pipelines / CUDA cores
768
144
Power consumption (TDP)
-
35 Watt
Texture fill rate
-
Up to 16.2 billion/sec
Memory type
GDDR5
DDR3\DDR5
Maximum RAM amount
2x2 GB
3 GB
Memory bus width
2x 128 Bit
Up to 192 bit/128 Bit
Memory clock speed
4000 MHz
Up to 1569 MHz
Memory bandwidth
-
Up to 50.2 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
11
12 API
CUDA
+
+
OpenCL
-
1.1
OpenGL
-
4.5
Shader Model
-
5.1
Vulkan
-
N/A
3D Blu-Ray
-
+
3D Gaming
-
+
Optimus
+
+