NVIDIA Tesla T40 24 GB vs NVIDIA Tesla K20X

VS

NVIDIA Tesla T40 24 GB

NVIDIA Tesla K20X

We compared two Professional market GPUs: 24GB VRAM Tesla T40 24 GB and 6GB VRAM Tesla K20X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla T40 24 GB 's Advantages

Boost Clock1560MHz

More VRAM (24GB vs 6GB)

Larger VRAM bandwidth (624.0GB/s vs 249.6GB/s)

1920 additional rendering cores

NVIDIA Tesla K20X 's Advantages

Lower TDP (235W vs 260W)

Score

Benchmark

FP32 (float)

Tesla T40 24 GB +265%

14.38 TFLOPS

Tesla K20X

3.935 TFLOPS

Tesla T40 24 GB

VS

Tesla K20X

Graphics Card

Unknown

Release Date

Nov 2012

Tesla Turing

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1305 MHz

Base Clock

-

1560 MHz

Boost Clock

-

1625 MHz

Memory Clock

1300 MHz

Memory

24GB

Memory Size

6GB

GDDR6

Memory Type

GDDR5

384bit

Memory Bus

384bit

624.0GB/s

Bandwidth

249.6GB/s

Render Config

-

72

SM Count

-

4608

Shading Units

2688

288

TMUs

224

96

ROPs

48

576

Tensor Cores

-

72

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

6 MB

L2 Cache

1536 KB

-

Theoretical Performance

149.8 GPixel/s

Pixel Rate

40.99 GPixel/s

449.3 GTexel/s

Texture Rate

164.0 GTexel/s

28.75 TFLOPS

FP16 (half)

-

14.38 TFLOPS

FP32 (float)

3.935 TFLOPS

449.3 GFLOPS

FP64 (double)

1312 GFLOPS

Board Design

260W

TDP

235W

600 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

TU102

GPU Name

GK110

-

Turing

Architecture

Kepler

TSMC

Foundry

TSMC

12 nm

Process Size

28 nm

18.6 billion

Transistors

7.08 billion

754 mm²

Die Size

561 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

7.5

CUDA

3.5

6.7

Shader Model

5.1

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