GeForce GT 640M and GeForce MX550 - video card comparison
Passmark - benchmark score GeForce GT 640M vs GeForce MX550
GeForce GT 640M
943
GeForce MX550
4713
GeForce GT 640M
GeForce MX550
Architecture
Kepler (2012−2018)
Turing (2018−2021)
GPU code name
N13P-GS
GN18-S5
Market segment
Laptop
Laptop
Release date
March 2012
December 2021
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
-
None
Boost clock speed
645 MHz
1320 MHz
Core clock speed
Up to 625 MHz
-
CUDA cores
384
-
Floating-point performance
480.0 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
1,270 million
4,700 million
Pipelines / CUDA cores
384
1024
Power consumption (TDP)
32 Watt
15-25 Watt
Texture fill rate
Up to 20.0 billion/sec
42.24
Memory type
DDR3\GDDR5
GDDR6
Maximum RAM amount
2 GB
2 GB
Memory bus width
128bit
64 Bit
Memory clock speed
1800 - 4000 MHz
12000 MHz
Memory bandwidth
Up to 64.0 GB/s
96 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (12_1)
CUDA
+
7.5
OpenCL
1.1
3.0
OpenGL
4.5
4.6
Shader Model
5.1
6.6
Vulkan
1.1.126
1.2
3D Blu-Ray
+
-
Optimus
+
+