NVIDIA Tesla K8 vs NVIDIA Tesla P40

VS

NVIDIA Tesla K8 NVIDIA Tesla P40

We compared two Professional market GPUs: 8GB VRAM Tesla K8 and 24GB VRAM Tesla P40 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K8 's Advantages

Lower TDP (100W vs 250W)

NVIDIA Tesla P40 's Advantages

Released 2 years late

Boost Clock has increased by 89% (1531MHz vs 811MHz)

More VRAM (24GB vs 8GB)

Larger VRAM bandwidth (347.1GB/s vs 160.0GB/s)

2304 additional rendering cores

Score

Benchmark

FP32 (float)

Tesla K8

2.491 TFLOPS

Tesla P40 +372%

11.76 TFLOPS

Tesla K8

VS

Tesla P40

Graphics Card

Sep 2014

Release Date

Sep 2016

Tesla

Generation

Tesla Pascal

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

693 MHz

Base Clock

1303 MHz

811 MHz

Boost Clock

1531 MHz

1250 MHz

Memory Clock

1808 MHz

Memory

8GB

Memory Size

24GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

160.0GB/s

Bandwidth

347.1GB/s

Render Config

-

SM Count

30

-

Compute Units

-

1536

Shading Units

3840

128

TMUs

240

32

ROPs

96

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

512 KB

L2 Cache

3 MB

Theoretical Performance

25.95 GPixel/s

Pixel Rate

147.0 GPixel/s

103.8 GTexel/s

Texture Rate

367.4 GTexel/s

-

FP16 (half)

183.7 GFLOPS

2.491 TFLOPS

FP32 (float)

11.76 TFLOPS

103.8 GFLOPS

FP64 (double)

367.4 GFLOPS

Graphics Processor

GK104

GPU Name

GP102

-

GPU Variant

-

Kepler

Architecture

Pascal

TSMC

Foundry

TSMC

28 nm

Process Size

16 nm

3.54 billion

Transistors

11.8 billion

294 mm²

Die Size

471 mm²

Board Design

100W

TDP

250W

300 W

Suggested PSU

600 W

No outputs

Outputs

No outputs

1x 6-pin

Power Connectors

8-pin EPS

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

6.1

5.1

Shader Model

6.7

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