Quadro P400 and RTX A40 - video card comparison
Quadro P400
RTX A40
Architecture
Pascal (2016−2021)
Ampere (2020−2022)
GPU code name
GP107
GA102
Market segment
Workstation
Desktop
Release date
February 2017
October 2020
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
None
8-pin EPS
Boost clock speed
1252 MHz
1755 MHz
Core clock speed
1228 MHz
-
Floating-point performance
679.9 gflops
-
Manufacturing process technology
14 nm
8 nm
Number of transistors
3,300 million
28,300 million
Pipelines / CUDA cores
256
10752
Power consumption (TDP)
30 Watt
300 Watt
Texture fill rate
20.03
589.7
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
48 GB
Memory bus width
64 Bit
384 Bit
Memory clock speed
4008 MHz
14.5 GB/s
Memory bandwidth
32.06 GB/s
695.8 GB/s
Display Connectors
3x mini-DisplayPort
3x DisplayPort
DirectX
12 (12_1)
12 Ultimate (12_2)
CUDA
6.1
8.6
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
6.4
6.5
Vulkan
1.2.131
1.2