NVIDIA Tesla K20X vs NVIDIA L40S

VS

NVIDIA Tesla K20X NVIDIA L40S

We compared two Professional market GPUs: 6GB VRAM Tesla K20X and 48GB VRAM L40S to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20X 's Advantages

Lower TDP (235W vs 300W)

NVIDIA L40S 's Advantages

Released 9 years and 11 months late

Boost Clock2520MHz

More VRAM (48GB vs 6GB)

Larger VRAM bandwidth (864.0GB/s vs 249.6GB/s)

15488 additional rendering cores

Score

Benchmark

FP32 (float)

Tesla K20X

3.935 TFLOPS

L40S +2228%

91.61 TFLOPS

Tesla K20X

VS

L40S

Graphics Card

Nov 2012

Release Date

Oct 2022

Tesla

Generation

Tesla Ada

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1110 MHz

-

Boost Clock

2520 MHz

1300 MHz

Memory Clock

2250 MHz

Memory

6GB

Memory Size

48GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

384bit

249.6GB/s

Bandwidth

864.0GB/s

Render Config

-

SM Count

142

-

Compute Units

-

2688

Shading Units

18176

224

TMUs

568

48

ROPs

192

-

Tensor Cores

568

-

RT Cores

142

16 KB (per SMX)

L1 Cache

128 KB (per SM)

1536 KB

L2 Cache

48 MB

Theoretical Performance

40.99 GPixel/s

Pixel Rate

483.8 GPixel/s

164.0 GTexel/s

Texture Rate

1431 GTexel/s

-

FP16 (half)

91.61 TFLOPS

3.935 TFLOPS

FP32 (float)

91.61 TFLOPS

1312 GFLOPS

FP64 (double)

1431 GFLOPS

Graphics Processor

GK110

GPU Name

AD102

-

GPU Variant

AD102-???-A1

Kepler

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

7.08 billion

Transistors

76.3 billion

561 mm²

Die Size

609 mm²

Board Design

235W

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

6.7

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