Tesla K40m and RTX A40 - video card comparison

Tesla K40m

RTX A40

Architecture

Kepler (2012−2018)

Ampere (2020−2022)

GPU code name

GK110B

GA102

Market segment

Workstation

Desktop

Release date

November 2013

October 2020

Interface

PCIe 3.0 x16

PCIe 4.0 x16

Supplementary power connectors

-

8-pin EPS

Boost clock speed

876 MHz

1755 MHz

Core clock speed

745 MHz

-

Floating-point performance

4,291 gflops

-

Manufacturing process technology

28 nm

8 nm

Number of transistors

7,080 million

28,300 million

Pipelines / CUDA cores

2880

10752

Power consumption (TDP)

245 Watt

300 Watt

Texture fill rate

210.2

589.7

Memory type

GDDR5

GDDR6

Maximum RAM amount

12 GB

48 GB

Memory bus width

384 Bit

384 Bit

Memory clock speed

6008 MHz

14.5 GB/s

Memory bandwidth

288.4 GB/s

695.8 GB/s

Display Connectors

No outputs

3x DisplayPort

DirectX

12 (11_1)

12 Ultimate (12_2)

CUDA

3.5

8.6

OpenCL

1.2

2.0

OpenGL

4.6

4.6

Shader Model

5.1

6.5

Vulkan

1.1.126

1.2