NVIDIA Tesla M40 vs NVIDIA Tesla K20m

VS

We compared two Professional market GPUs: 12GB VRAM Tesla M40 and 5GB VRAM Tesla K20m to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla M40 's Advantages

Released 2 years and 10 months late

Boost Clock1112MHz

More VRAM (12GB vs 5GB)

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

576 additional rendering cores

NVIDIA Tesla K20m 's Advantages

Lower TDP (225W vs 250W)

Score

Benchmark

FP32 (float)

Tesla M40 +93%

6.832 TFLOPS

Tesla K20m

3.524 TFLOPS

Tesla M40

VS

Tesla K20m

Graphics Card

Nov 2015

Release Date

Jan 2013

Tesla Maxwell

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

948 MHz

Base Clock

-

1112 MHz

Boost Clock

-

1502 MHz

Memory Clock

1300 MHz

Memory

12GB

Memory Size

5GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

320bit

288.4GB/s

Bandwidth

208.0GB/s

Render Config

-

SM Count

-

Compute Units

-

3072

Shading Units

2496

192

TMUs

208

96

ROPs

40

-

Tensor Cores

-

RT Cores

-

48 KB (per SMM)

L1 Cache

16 KB (per SMX)

3 MB

L2 Cache

1280 KB

Theoretical Performance

106.8 GPixel/s

Pixel Rate

36.71 GPixel/s

213.5 GTexel/s

Texture Rate

146.8 GTexel/s

-

FP16 (half)

-

6.832 TFLOPS

FP32 (float)

3.524 TFLOPS

213.5 GFLOPS

FP64 (double)

1175 GFLOPS

Graphics Processor

GM200

GPU Name

GK110

GM200-895-A1

GPU Variant

-

Maxwell 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

8 billion

Transistors

7.08 billion

601 mm²

Die Size

561 mm²

Board Design

250W

TDP

225W

600 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.2

CUDA

3.5

6.7

Shader Model

5.1

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