GeForce GTX 460M and GeForce GT 640M - video card comparison
Passmark - benchmark score GeForce GTX 460M vs GeForce GT 640M
GeForce GTX 460M
1283
GeForce GT 640M
943
GeForce GTX 460M
GeForce GT 640M
Architecture
Fermi (2010−2014)
Kepler (2012−2018)
GPU code name
N11E-GS
N13P-GS
Market segment
Laptop
Laptop
Release date
September 2010
March 2012
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x16
SLI options
+
-
Boost clock speed
-
645 MHz
Core clock speed
675 MHz
Up to 625 MHz
CUDA cores
-
384
Floating-point performance
518.4 gflops
480.0 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,170 million
1,270 million
Pipelines / CUDA cores
192
384
Power consumption (TDP)
50 Watt
32 Watt
Texture fill rate
16.1 billion/sec
Up to 20.0 billion/sec
Memory type
GDDR5
DDR3\GDDR5
Maximum RAM amount
1536 MB
2 GB
Memory bus width
192 Bit
128bit
Memory clock speed
1250 MHz
1800 - 4000 MHz
Memory bandwidth
60.0 GB/s
Up to 64.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
12 API with Feature Level 12.1
12 API
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
4.5
4.5
Shader Model
5.1
5.1
Vulkan
N/A
1.1.126
3D Blu-Ray
-
+
Optimus
-
+