NVIDIA Tesla M40 24 GB vs NVIDIA Tesla K20Xm

VS

NVIDIA Tesla M40 24 GB

NVIDIA Tesla K20Xm

We compared two Professional market GPUs: 24GB VRAM Tesla M40 24 GB and 6GB VRAM Tesla K20Xm to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla M40 24 GB 's Advantages

Released 3 years late

Boost Clock1112MHz

More VRAM (24GB vs 6GB)

Larger VRAM bandwidth (288.4GB/s vs 249.6GB/s)

384 additional rendering cores

NVIDIA Tesla K20Xm 's Advantages

Lower TDP (235W vs 250W)

Score

Benchmark

FP32 (float)

Tesla M40 24 GB +73%

6.832 TFLOPS

Tesla K20Xm

3.935 TFLOPS

Blender

Tesla M40 24 GB +28%

478

Tesla K20Xm

372

OctaneBench

Tesla M40 24 GB +106%

130

Tesla K20Xm

63

Tesla M40 24 GB

VS

Tesla K20Xm

Graphics Card

Nov 2015

Release Date

Nov 2012

Tesla Maxwell

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

948 MHz

Base Clock

-

1112 MHz

Boost Clock

-

1502 MHz

Memory Clock

1300 MHz

Memory

24GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

288.4GB/s

Bandwidth

249.6GB/s

Render Config

-

3072

Shading Units

2688

192

TMUs

224

96

ROPs

48

-

48 KB (per SMM)

L1 Cache

16 KB (per SMX)

3 MB

L2 Cache

1536 KB

-

Theoretical Performance

106.8 GPixel/s

Pixel Rate

40.99 GPixel/s

213.5 GTexel/s

Texture Rate

164.0 GTexel/s

-

6.832 TFLOPS

FP32 (float)

3.935 TFLOPS

213.5 GFLOPS

FP64 (double)

1312 GFLOPS

Board Design

250W

TDP

235W

600 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

-

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

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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