Tesla K20X and Tesla A100 - video card comparison

Tesla K20X

Tesla A100

Architecture

Kepler (2012−2018)

Ampere (2020−2022)

GPU code name

GK110

GA100

Market segment

Workstation

Workstation

Release date

November 2012

-

Interface

PCIe 3.0 x16

PCIe 4.0 x16

Supplementary power connectors

1x 6-pin + 1x 8-pin

None

Core clock speed

732 MHz

1110 MHz

Floating-point performance

3,935 gflops

-

Manufacturing process technology

28 nm

7 nm

Number of transistors

7,080 million

38,000 million

Pipelines / CUDA cores

2688

7936

Power consumption (TDP)

235 Watt

260 Watt

Texture fill rate

164.0

550.6

Memory type

GDDR5

HBM2e

Maximum RAM amount

6 GB

32 GB

Memory bus width

384 Bit

4096 Bit

Memory clock speed

5200 MHz

2400 MHz

Memory bandwidth

249.6 GB/s

1,229 GB/s

Display Connectors

No outputs

No outputs

DirectX

12 (11_0)

12 (12_1)

CUDA

3.5

-

OpenCL

1.2

-

OpenGL

4.6

4.6

Shader Model

5.1

-

Vulkan

1.1.126

-