GeForce GT 640 OEM and GeForce RTX 2080 Ti - video card comparison
GeForce GT 640 OEM
GeForce RTX 2080 Ti
Architecture
Kepler (2012−2018)
Turing (2018−2021)
GPU code name
GK107
Turing TU102
Market segment
Desktop
Desktop
Release date
April 2012
August 2018
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
2x 8-pin
Boost clock speed
-
1545 MHz
Core clock speed
797 MHz
1350 MHz
Floating-point performance
612.1 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
1,270 million
18,600 million
Pipelines / CUDA cores
384
4352
Power consumption (TDP)
50 Watt
270 Watt
Texture fill rate
25.50
420.2
Memory type
DDR3
GDDR6
Maximum RAM amount
2 GB
11 GB
Memory bus width
128 Bit
352 Bit
Memory clock speed
1782 MHz
14000 MHz
Memory bandwidth
28.51 GB/s
616.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort, 1x USB Type-C
HDMI
+
+
G-SYNC support
-
+
DirectX
12 (11_0)
12 Ultimate (12_1)
CUDA
3.0
7.5
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2.131
VR Ready
-
+