GeForce GTX 1660 Ti Mobile and GeForce GT 640M - video card comparison
Passmark - benchmark score GeForce GTX 1660 Ti Mobile vs GeForce GT 640M
GeForce GTX 1660 Ti Mobile
10494
GeForce GT 640M
943
GeForce GTX 1660 Ti Mobile
GeForce GT 640M
Architecture
Turing (2018−2021)
Kepler (2012−2018)
GPU code name
N18E-G0
N13P-GS
Market segment
Laptop
Laptop
Release date
April 2019
March 2012
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Boost clock speed
1590 MHz
645 MHz
Core clock speed
1455 MHz
Up to 625 MHz
CUDA cores
-
384
Floating-point performance
-
480.0 gflops
Manufacturing process technology
12 nm
28 nm
Number of transistors
6,600 million
1,270 million
Pipelines / CUDA cores
1536
384
Power consumption (TDP)
80 Watt
32 Watt
Texture fill rate
152.6
Up to 20.0 billion/sec
Memory type
GDDR6
DDR3\GDDR5
Maximum RAM amount
6 GB
2 GB
Memory bus width
192 Bit
128bit
Memory clock speed
12000 MHz
1800 - 4000 MHz
Memory bandwidth
288.0 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 (12_1)
12 API
CUDA
7.5
+
OpenCL
1.2
1.1
OpenGL
4.6
4.5
Shader Model
6.5
5.1
Vulkan
1.2.131
1.1.126
3D Blu-Ray
-
+
Optimus
-
+