GeForce GTX 580M and GeForce GT 650M SLI - video card comparison
GeForce GTX 580M
GeForce GT 650M SLI
Architecture
Fermi (2010−2014)
Kepler (2012−2018)
GPU code name
N12E-GTX2
N13E-GE
Market segment
Laptop
Laptop
Release date
June 2011
March 2012
Bus support
PCI-E 2.0
-
Interface
MXM-B (3.0)
-
Supplementary power connectors
None
-
SLI options
+
-
Boost clock speed
-
835 MHz
Core clock speed
620 MHz
790 MHz
CUDA cores
384
-
Floating-point performance
952.3 gflops
-
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,950 million
-
Pipelines / CUDA cores
384
768
Power consumption (TDP)
100 Watt
-
Texture fill rate
39.7 billion/sec
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 MB
2x2 GB
Memory bus width
256 Bit
2x 128 Bit
Memory clock speed
1500 MHz
4000 MHz
Memory bandwidth
96.0 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
-
DirectX
12 API
11
CUDA
+
+
OpenCL
1.1
-
OpenGL
4.5
-
Shader Model
5.1
-
Vulkan
N/A
-
3D Blu-Ray
+
-
3D Gaming
+
-
Optimus
+
+