NVIDIA L40 CNX vs NVIDIA Tesla K20m

VS

NVIDIA L40 CNX

NVIDIA Tesla K20m

We compared two Professional market GPUs: 24GB VRAM L40 CNX and 5GB VRAM Tesla K20m to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA L40 CNX 's Advantages

Released 9 years and 9 months late

Boost Clock2475MHz

More VRAM (24GB vs 5GB)

Larger VRAM bandwidth (864.0GB/s vs 208.0GB/s)

15680 additional rendering cores

NVIDIA Tesla K20m 's Advantages

Lower TDP (225W vs 300W)

Score

Benchmark

FP32 (float)

L40 CNX +2453%

89.97 TFLOPS

Tesla K20m

3.524 TFLOPS

L40 CNX

VS

Tesla K20m

Graphics Card

Oct 2022

Release Date

Jan 2013

Tesla Ada

Generation

Tesla

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1005 MHz

Base Clock

-

2475 MHz

Boost Clock

-

2250 MHz

Memory Clock

1300 MHz

Memory

24GB

Memory Size

5GB

GDDR6

Memory Type

GDDR5

384bit

Memory Bus

320bit

864.0GB/s

Bandwidth

208.0GB/s

Render Config

-

142

SM Count

-

18176

Shading Units

2496

568

TMUs

208

192

ROPs

40

568

Tensor Cores

-

142

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

48 MB

L2 Cache

1280 KB

-

Theoretical Performance

475.2 GPixel/s

Pixel Rate

36.71 GPixel/s

1406 GTexel/s

Texture Rate

146.8 GTexel/s

89.97 TFLOPS

FP16 (half)

-

89.97 TFLOPS

FP32 (float)

3.524 TFLOPS

1406 GFLOPS

FP64 (double)

1175 GFLOPS

Board Design

300W

TDP

225W

700 W

Suggested PSU

550 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

No outputs

1x 16-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

AD102

GPU Name

GK110

AD102-???-A1

GPU Variant

-

Ada Lovelace

Architecture

Kepler

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

76.3 billion

Transistors

7.08 billion

608 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

8.9

CUDA

3.5

6.6

Shader Model

5.1

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