GeForce GTX 550 Ti and GeForce GT 640M LE - video card comparison
Passmark - benchmark score GeForce GTX 550 Ti vs GeForce GT 640M LE
GeForce GTX 550 Ti
1599
GeForce GT 640M LE
720
GeForce GTX 550 Ti
GeForce GT 640M LE
Architecture
Fermi (2010−2014)
Fermi / Kepler (2012)
GPU code name
GF116
N13P-LP
Market segment
Desktop
Laptop
Release date
March 2011
March 2012
Bus support
16x PCI-E 2.0
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
One 6-pin
-
SLI options
+
-
Core clock speed
900 MHz
Up to 500 MHz
CUDA cores
192
Up to 384
Floating-point performance
691.2 gflops
384.0 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,170 million
585 million
Pipelines / CUDA cores
192
384
Power consumption (TDP)
116 Watt
20 Watt
Maximum GPU temperature
100 °C
-
Texture fill rate
28.8 billion/sec
Up to 16.0 billion/sec
Memory type
GDDR5
DDR3\DDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
192 Bit
128bit
Memory clock speed
4.1 GB/s
1800 - 4000 MHz
Memory bandwidth
98.4 GB/s
Up to 28.8 GB/s
Shared memory
-
-
Display Connectors
Two Dual Link DVI-IMini HDMI
No outputs
Multi monitor support
+
-
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
2048x1536
Up to 2048x1536
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 API
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
4.2
4.5
Shader Model
5.1
5.1
Vulkan
N/A
N/A
3D Blu-Ray
-
+
Optimus
-
+