NVIDIA Tesla K20Xm vs NVIDIA Tesla T40 24 GB

VS

NVIDIA Tesla K20Xm

NVIDIA Tesla T40 24 GB

We compared two Professional market GPUs: 6GB VRAM Tesla K20Xm and 24GB VRAM Tesla T40 24 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20Xm 's Advantages

Lower TDP (235W vs 260W)

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

Score

Benchmark

FP32 (float)

Tesla K20Xm

3.935 TFLOPS

Tesla T40 24 GB +265%

14.38 TFLOPS

Tesla K20Xm

VS

Tesla T40 24 GB

Graphics Card

Nov 2012

Release Date

Unknown

Tesla

Generation

Tesla Turing

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1305 MHz

-

Boost Clock

1560 MHz

1300 MHz

Memory Clock

1625 MHz

Memory

6GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

384bit

249.6GB/s

Bandwidth

624.0GB/s

Render Config

-

SM Count

72

2688

Shading Units

4608

224

TMUs

288

48

ROPs

96

-

Tensor Cores

576

-

RT Cores

72

16 KB (per SMX)

L1 Cache

64 KB (per SM)

1536 KB

L2 Cache

6 MB

-

Theoretical Performance

40.99 GPixel/s

Pixel Rate

149.8 GPixel/s

164.0 GTexel/s

Texture Rate

449.3 GTexel/s

-

FP16 (half)

28.75 TFLOPS

3.935 TFLOPS

FP32 (float)

14.38 TFLOPS

1312 GFLOPS

FP64 (double)

449.3 GFLOPS

Board Design

235W

TDP

260W

550 W

Suggested PSU

600 W

No outputs

Outputs

No outputs

-

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GK110

GPU Name

TU102

-

Kepler

Architecture

Turing

TSMC

Foundry

TSMC

28 nm

Process Size

12 nm

7.08 billion

Transistors

18.6 billion

561 mm²

Die Size

754 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

7.5

5.1

Shader Model

6.7

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