NVIDIA GeForce RTX 4090 D vs NVIDIA L20

VS

NVIDIA GeForce RTX 4090 D

NVIDIA L20

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

Main Differences

NVIDIA GeForce RTX 4090 D 's Advantages

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

2816 additional rendering cores

NVIDIA L20 's Advantages

More VRAM (48GB vs 24GB)

Lower TDP (275W vs 425W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 D +23%

73.54 TFLOPS

L20

59.35 TFLOPS

GeForce RTX 4090 D

VS

L20

Graphics Card

Dec 2023

Release Date

Nov 2023

GeForce 40

Generation

Tesla Ada

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2280 MHz

Base Clock

1440 MHz

2520 MHz

Boost Clock

2520 MHz

1313 MHz

Memory Clock

2250 MHz

Memory

24GB

Memory Size

48GB

GDDR6X

Memory Type

GDDR6

384bit

Memory Bus

384bit

1008GB/s

Bandwidth

864.0GB/s

Render Config

-

114

SM Count

92

14592

Shading Units

11776

456

TMUs

368

176

ROPs

128

456

Tensor Cores

368

114

RT Cores

92

128 KB (per SM)

L1 Cache

128 KB (per SM)

72 MB

L2 Cache

96 MB

-

Theoretical Performance

443.5 GPixel/s

Pixel Rate

322.6 GPixel/s

1149 GTexel/s

Texture Rate

927.4 GTexel/s

73.54 TFLOPS

FP16 (half)

59.35 TFLOPS

73.54 TFLOPS

FP32 (float)

59.35 TFLOPS

1149 GFLOPS

FP64 (double)

927.4 GFLOPS

Board Design

425W

TDP

275W

800 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

4x DisplayPort 1.4a

1x 16-pin

Power Connectors

1x 16-pin

Graphics Processor

AD102

GPU Name

AD102

AD102-250-A1

GPU Variant

AD102

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

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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