Tesla K80m and Tesla K40s - video card comparison

Tesla K80m

Tesla K40s

Architecture

Kepler 2.0 (2013−2015)

Kepler (2012−2018)

GPU code name

GK210

GK110B

Market segment

Workstation

Workstation

Release date

November 2014

November 2013

Interface

PCIe 3.0 x16

PCIe 3.0 x16

Supplementary power connectors

1x 8-pin

-

Boost clock speed

824 MHz

876 MHz

Core clock speed

562 MHz

745 MHz

Floating-point performance

2x 4,373 gflops

4,291 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

7,100 million

7,080 million

Pipelines / CUDA cores

2x 2496

2880

Power consumption (TDP)

300 Watt

245 Watt

Texture fill rate

2x 182.2 billion/sec

210.2

Memory type

GDDR5

GDDR5

Maximum RAM amount

2x 12 GB

12 GB

Memory bus width

2x 384 Bit

384 Bit

Memory clock speed

5012 MHz

6008 MHz

Memory bandwidth

2x 240.6 GB/s

288.4 GB/s

Display Connectors

No outputs

No outputs

DirectX

12.0 (11_1)

12 (11_1)

CUDA

-

3.5

OpenCL

-

1.2

OpenGL

4.6

4.6

Shader Model

-

5.1

Vulkan

-

1.1.126