NVIDIA Tesla K80 vs NVIDIA Tesla P40

VS

NVIDIA Tesla K80 NVIDIA Tesla P40

We compared two Professional market GPUs: 12GB VRAM Tesla K80 and 24GB VRAM Tesla P40 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla P40 's Advantages

Released 1 years and 10 months late

Boost Clock has increased by 86% (1531MHz vs 824MHz)

More VRAM (24GB vs 12GB)

Larger VRAM bandwidth (347.1GB/s vs 240.6GB/s)

1344 additional rendering cores

Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)

Tesla K80

4.113 TFLOPS

Tesla P40 +185%

11.76 TFLOPS

Blender

Tesla K80

373

Tesla P40 +114%

800

OctaneBench

Tesla K80

62

Tesla P40 +167%

166

Tesla K80

VS

Tesla P40

Graphics Card

Nov 2014

Release Date

Sep 2016

Tesla

Generation

Tesla Pascal

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

562 MHz

Base Clock

1303 MHz

824 MHz

Boost Clock

1531 MHz

1253 MHz

Memory Clock

1808 MHz

Memory

12GB

Memory Size

24GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

240.6GB/s

Bandwidth

347.1GB/s

Render Config

-

SM Count

30

-

Compute Units

-

2496

Shading Units

3840

208

TMUs

240

48

ROPs

96

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

1536 KB

L2 Cache

3 MB

Theoretical Performance

42.85 GPixel/s

Pixel Rate

147.0 GPixel/s

171.4 GTexel/s

Texture Rate

367.4 GTexel/s

-

FP16 (half)

183.7 GFLOPS

4.113 TFLOPS

FP32 (float)

11.76 TFLOPS

1371 GFLOPS

FP64 (double)

367.4 GFLOPS

Graphics Processor

GK210

GPU Name

GP102

GK210-885-A1

GPU Variant

-

Kepler 2.0

Architecture

Pascal

TSMC

Foundry

TSMC

28 nm

Process Size

16 nm

7.1 billion

Transistors

11.8 billion

561 mm²

Die Size

471 mm²

Board Design

300W

TDP

250W

700 W

Suggested PSU

600 W

No outputs

Outputs

No outputs

1x 8-pin

Power Connectors

8-pin EPS

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.7

CUDA

6.1

5.1

Shader Model

6.7

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