GeForce GT 640M and GeForce RTX 2080 Ti 12 GB - video card comparison
GeForce GT 640M
GeForce RTX 2080 Ti 12 GB
Architecture
Kepler (2012−2018)
Turing (2018−2021)
GPU code name
N13P-GS
TU102
Market segment
Laptop
Desktop
Release date
March 2012
October 2022
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
-
2x 8-pin
Boost clock speed
645 MHz
1650 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
18,600 million
Pipelines / CUDA cores
384
4608
Power consumption (TDP)
32 Watt
250 Watt
Texture fill rate
Up to 20.0 billion/sec
475.2
Memory type
DDR3\GDDR5
GDDR6
Maximum RAM amount
2 GB
12 GB
Memory bus width
128bit
384 Bit
Memory clock speed
1800 - 4000 MHz
16 GB/s
Memory bandwidth
Up to 64.0 GB/s
768.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI 2.0, 3x DisplayPort 1.4a, 1x USB Type-C
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 Ultimate (12_2)
CUDA
+
7.5
OpenCL
1.1
3.0
OpenGL
4.5
4.6
Shader Model
5.1
6.7
Vulkan
1.1.126
1.3
3D Blu-Ray
+
-
Optimus
+
-