NVIDIA Tesla K20s vs NVIDIA Tesla M40 24 GB

VS

NVIDIA Tesla K20s

NVIDIA Tesla M40 24 GB

We compared two Professional market GPUs: 5GB VRAM Tesla K20s and 24GB VRAM Tesla M40 24 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20s 's Advantages

Lower TDP (225W vs 250W)

NVIDIA Tesla M40 24 GB 's Advantages

Released 2 years and 9 months late

Boost Clock1112MHz

More VRAM (24GB vs 5GB)

Larger VRAM bandwidth (288.4GB/s vs 208.0GB/s)

576 additional rendering cores

Score

Benchmark

FP32 (float)

Tesla K20s

2.87 TFLOPS

Tesla M40 24 GB +138%

6.832 TFLOPS

Tesla K20s

VS

Tesla M40 24 GB

Graphics Card

Feb 2013

Release Date

Nov 2015

Tesla

Generation

Tesla Maxwell

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

948 MHz

-

Boost Clock

1112 MHz

1300 MHz

Memory Clock

1502 MHz

Memory

5GB

Memory Size

24GB

GDDR5

Memory Type

GDDR5

320bit

Memory Bus

384bit

208.0GB/s

Bandwidth

288.4GB/s

Render Config

-

2496

Shading Units

3072

208

TMUs

192

40

ROPs

96

-

16 KB (per SMX)

L1 Cache

48 KB (per SMM)

1280 KB

L2 Cache

3 MB

-

Theoretical Performance

29.90 GPixel/s

Pixel Rate

106.8 GPixel/s

119.6 GTexel/s

Texture Rate

213.5 GTexel/s

-

2.870 TFLOPS

FP32 (float)

6.832 TFLOPS

956.8 GFLOPS

FP64 (double)

213.5 GFLOPS

Board Design

225W

TDP

250W

550 W

Suggested PSU

600 W

No outputs

Outputs

No outputs

-

Power Connectors

8-pin EPS

Graphics Processor

GK110

GPU Name

GM200

-

GPU Variant

GM200-895-A1

Kepler

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

8 billion

561 mm²

Die Size

601 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

5.2

5.1

Shader Model

6.7

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