NVIDIA L20 vs NVIDIA GeForce RTX 4090

VS

We compared two Desktop platform GPUs: 48GB VRAM L20 and 24GB VRAM GeForce RTX 4090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA L20 's Advantages

Released 1 years and 2 months late

More VRAM (48GB vs 24GB)

Lower TDP (275W vs 450W)

NVIDIA GeForce RTX 4090 's Advantages

Larger VRAM bandwidth (1008GB/s vs 864.0GB/s)

4608 additional rendering cores

Score

Benchmark

FP32 (float)

L20

59.35 TFLOPS

GeForce RTX 4090 +39%

82.58 TFLOPS

L20

VS

GeForce RTX 4090

Graphics Card

Nov 2023

Release Date

Sep 2022

Tesla Ada

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1440 MHz

Base Clock

2235 MHz

2520 MHz

Boost Clock

2520 MHz

2250 MHz

Memory Clock

1313 MHz

Memory

48GB

Memory Size

24GB

GDDR6

Memory Type

GDDR6X

384bit

Memory Bus

384bit

864.0GB/s

Bandwidth

1008GB/s

Render Config

92

SM Count

128

-

Compute Units

-

11776

Shading Units

16384

368

TMUs

512

128

ROPs

176

368

Tensor Cores

512

92

RT Cores

128

128 KB (per SM)

L1 Cache

128 KB (per SM)

96 MB

L2 Cache

72 MB

Theoretical Performance

322.6 GPixel/s

Pixel Rate

443.5 GPixel/s

927.4 GTexel/s

Texture Rate

1290 GTexel/s

59.35 TFLOPS

FP16 (half)

82.58 TFLOPS

59.35 TFLOPS

FP32 (float)

82.58 TFLOPS

927.4 GFLOPS

FP64 (double)

1290 GFLOPS

Graphics Processor

AD102

GPU Name

AD102

GPU Variant

AD102-300-A1

Ada Lovelace

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

5 nm

Process Size

5 nm

76.3 billion

Transistors

76.3 billion

609 mm²

Die Size

609 mm²

Board Design

275W

TDP

450W

600 W

Suggested PSU

850 W

4x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 16-pin

Power Connectors

1x 16-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

8.9

CUDA

8.9

6.7

Shader Model

6.7

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