NVIDIA Tesla P40 vs NVIDIA Tesla K40st

VS

NVIDIA Tesla P40

NVIDIA Tesla K40st

We compared two Professional market GPUs: 24GB VRAM Tesla P40 and 12GB VRAM Tesla K40st to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla P40 's Advantages

Released 2 years and 10 months late

Boost Clock1531MHz

More VRAM (24GB vs 12GB)

Larger VRAM bandwidth (347.1GB/s vs 288.4GB/s)

960 additional rendering cores

NVIDIA Tesla K40st 's Advantages

Lower TDP (245W vs 250W)

Score

Benchmark

FP32 (float)

Tesla P40 +255%

11.76 TFLOPS

Tesla K40st

3.312 TFLOPS

Tesla P40

VS

Tesla K40st

Graphics Card

Sep 2016

Release Date

Nov 2013

Tesla Pascal

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1303 MHz

Base Clock

-

1531 MHz

Boost Clock

-

1808 MHz

Memory Clock

1502 MHz

Memory

24GB

Memory Size

12GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

347.1GB/s

Bandwidth

288.4GB/s

Render Config

-

30

SM Count

-

3840

Shading Units

2880

240

TMUs

240

96

ROPs

48

-

48 KB (per SM)

L1 Cache

16 KB (per SMX)

3 MB

L2 Cache

1536 KB

-

Theoretical Performance

147.0 GPixel/s

Pixel Rate

34.50 GPixel/s

367.4 GTexel/s

Texture Rate

138.0 GTexel/s

183.7 GFLOPS

FP16 (half)

-

11.76 TFLOPS

FP32 (float)

3.312 TFLOPS

367.4 GFLOPS

FP64 (double)

1104 GFLOPS

Board Design

250W

TDP

245W

600 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

-

Graphics Processor

GP102

GPU Name

GK110B

-

Pascal

Architecture

Kepler

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

11.8 billion

Transistors

7.08 billion

471 mm²

Die Size

561 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

6.1

CUDA

3.5

6.7

Shader Model

5.1

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