GeForce GT 640 and Quadro RTX A6000 - video card comparison
GeForce GT 640
Quadro RTX A6000
Architecture
Kepler (2012−2018)
Ampere (2020−2022)
GPU code name
GK107
Ampere
Market segment
Desktop
Workstation
Release date
June 2012
October 2020
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
None
8-pin EPS
Boost clock speed
-
1800 MHz
Core clock speed
902 MHz
1410 MHz
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
8 nm
Number of transistors
1,270 million
28,300 million
Pipelines / CUDA cores
384
10752
Power consumption (TDP)
65 Watt
300 Watt
Texture fill rate
28.86
625.0
Memory type
DDR3
GDDR6
Maximum RAM amount
2 GB
48 GB
Memory bus width
128 Bit
384 Bit
Memory clock speed
1782 MHz
16000 MHz
Memory bandwidth
28.51 GB/s
768.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
4x DisplayPort
HDMI
+
-
DirectX
12 (11_0)
12 Ultimate (12_2)
CUDA
3.0
8.6
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2