NVIDIA L20 vs AMD Radeon RX 6800 XT

VS

NVIDIA L20

AMD Radeon RX 6800 XT

We compared two Desktop platform GPUs: 48GB VRAM L20 and 16GB VRAM Radeon RX 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA L20 's Advantages

Released 3 years and 1 months late

Boost Clock has increased by 12% (2520MHz vs 2250MHz)

More VRAM (48GB vs 16GB)

Larger VRAM bandwidth (864.0GB/s vs 512.0GB/s)

7168 additional rendering cores

Lower TDP (275W vs 300W)

Score

Benchmark

FP32 (float)

L20 +186%

59.35 TFLOPS

Radeon RX 6800 XT

20.74 TFLOPS

L20

VS

Radeon RX 6800 XT

Graphics Card

Nov 2023

Release Date

Oct 2020

Tesla Ada

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1440 MHz

Base Clock

1825 MHz

2520 MHz

Boost Clock

2250 MHz

Memory Clock

2000 MHz

Memory

48GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

384bit

Memory Bus

256bit

864.0GB/s

Bandwidth

512.0GB/s

Render Config

-

Compute Units

72

92

SM Count

-

11776

Shading Units

4608

368

TMUs

288

128

ROPs

128

368

Tensor Cores

-

92

RT Cores

72

128 KB (per SM)

L1 Cache

128 KB per Array

96 MB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

322.6 GPixel/s

Pixel Rate

288.0 GPixel/s

927.4 GTexel/s

Texture Rate

648.0 GTexel/s

59.35 TFLOPS

FP16 (half)

41.47 TFLOPS

59.35 TFLOPS

FP32 (float)

20.74 TFLOPS

927.4 GFLOPS

FP64 (double)

1296 GFLOPS

Board Design

275W

TDP

300W

600 W

Suggested PSU

700 W

4x DisplayPort 1.4a

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

1x 16-pin

Power Connectors

2x 8-pin

Graphics Processor

AD102

GPU Name

Navi 21

AD102

GPU Variant

Navi 21 XT (215-121000177)

Ada Lovelace

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

76.3 billion

Transistors

26.8 billion

609 mm²

Die Size

520 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

8.9

CUDA

-

6.7

Shader Model

6.5

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