NVIDIA Tesla K20m vs NVIDIA L40G

VS

NVIDIA Tesla K20m NVIDIA L40G

We compared two Professional market GPUs: 5GB VRAM Tesla K20m and 24GB VRAM L40G to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20m 's Advantages

Lower TDP (225W vs 300W)

NVIDIA L40G '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

Score

Benchmark

FP32 (float)

Tesla K20m

3.524 TFLOPS

L40G +2453%

89.97 TFLOPS

Tesla K20m

VS

L40G

Graphics Card

Jan 2013

Release Date

Oct 2022

Tesla

Generation

Tesla Ada

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1005 MHz

-

Boost Clock

2475 MHz

1300 MHz

Memory Clock

2250 MHz

Memory

5GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6

320bit

Memory Bus

384bit

208.0GB/s

Bandwidth

864.0GB/s

Render Config

-

SM Count

142

-

Compute Units

-

2496

Shading Units

18176

208

TMUs

568

40

ROPs

192

-

Tensor Cores

568

-

RT Cores

142

16 KB (per SMX)

L1 Cache

128 KB (per SM)

1280 KB

L2 Cache

48 MB

Theoretical Performance

36.71 GPixel/s

Pixel Rate

475.2 GPixel/s

146.8 GTexel/s

Texture Rate

1406 GTexel/s

-

FP16 (half)

89.97 TFLOPS

3.524 TFLOPS

FP32 (float)

89.97 TFLOPS

1175 GFLOPS

FP64 (double)

1406 GFLOPS

Graphics Processor

GK110

GPU Name

AD102

-

GPU Variant

AD102-???-A1

Kepler

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

28 nm

Process Size

4 nm

7.08 billion

Transistors

76.3 billion

561 mm²

Die Size

608 mm²

Board Design

225W

TDP

300W

550 W

Suggested PSU

700 W

No outputs

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 16-pin

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

8.9

5.1

Shader Model

6.6

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