GeForce GT 640M and GeForce RTX 3070 Mobile - video card comparison
Passmark - benchmark score GeForce GT 640M vs GeForce RTX 3070 Mobile
GeForce GT 640M
946
GeForce RTX 3070 Mobile
14795
GeForce GT 640M
GeForce RTX 3070 Mobile
Architecture
Kepler (2012−2018)
Ampere (2020−2022)
GPU code name
N13P-GS
GN20-E5 GA104
Market segment
Laptop
Laptop
Release date
March 2012
January 2021
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Boost clock speed
645 MHz
1290 - 1620 MHz
Core clock speed
Up to 625 MHz
780 - 1100 MHz
CUDA cores
384
-
Floating-point performance
480.0 gflops
-
Manufacturing process technology
28 nm
8 nm
Number of transistors
1,270 million
17,400 million
Pipelines / CUDA cores
384
5120
Power consumption (TDP)
32 Watt
125 Watt
Texture fill rate
Up to 20.0 billion/sec
287.0
Memory type
DDR3\GDDR5
GDDR6
Maximum RAM amount
2 GB
8 GB
Memory bus width
128bit
256 Bit
Memory clock speed
1800 - 4000 MHz
14000 MHz
Memory bandwidth
Up to 64.0 GB/s
320.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI, 3x DisplayPort
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 Ultimate (12_2)
CUDA
+
8.5
OpenCL
1.1
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2
3D Blu-Ray
+
-
Optimus
+
-