GeForce RTX 2070 Mobile and GeForce GT 640M - video card comparison
Passmark - benchmark score GeForce RTX 2070 Mobile vs GeForce GT 640M
GeForce RTX 2070 Mobile
12725
GeForce GT 640M
946
GeForce RTX 2070 Mobile
GeForce GT 640M
Architecture
Turing (2018−2021)
Kepler (2012−2018)
GPU code name
N18E-G2 TU106
N13P-GS
Market segment
Laptop
Laptop
Release date
January 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
1440 MHz
645 MHz
Core clock speed
1215 MHz
Up to 625 MHz
CUDA cores
-
384
Floating-point performance
-
480.0 gflops
Manufacturing process technology
12 nm
28 nm
Number of transistors
10,800 million
1,270 million
Pipelines / CUDA cores
2304
384
Power consumption (TDP)
115 Watt
32 Watt
Texture fill rate
213.8
Up to 20.0 billion/sec
Memory type
GDDR6
DDR3\GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
128bit
Memory clock speed
14000 MHz
1800 - 4000 MHz
Memory bandwidth
448.0 GB/s
Up to 64.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
G-SYNC support
+
-
DirectX
12 Ultimate (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
-
+
VR Ready
+
-