GeForce GT 640M and Mobility Radeon HD 5145 - video card comparison
GeForce GT 640M
Mobility Radeon HD 5145
Architecture
Kepler (2012−2018)
Terascale 1 (2008−2010)
GPU code name
N13P-GS
M92
Market segment
Laptop
Laptop
Release date
March 2012
January 2010
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Boost clock speed
645 MHz
-
Core clock speed
Up to 625 MHz
720 MHz
CUDA cores
384
-
Floating-point performance
480.0 gflops
115.2 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
1,270 million
242 million
Pipelines / CUDA cores
384
80
Power consumption (TDP)
32 Watt
15 Watt
Texture fill rate
Up to 20.0 billion/sec
5.760
Memory type
DDR3\GDDR5
DDR3, GDDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
128bit
64 Bit
Memory clock speed
1800 - 4000 MHz
900 MHz
Memory bandwidth
Up to 64.0 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
10.1 (10_1)
CUDA
+
-
OpenCL
1.1
1.1
OpenGL
4.5
3.3
Shader Model
5.1
4.1
Vulkan
1.1.126
N/A
3D Blu-Ray
+
-
Optimus
+
-