AMD Radeon RX 7990 XTX vs NVIDIA L20

VS

AMD Radeon RX 7990 XTX

NVIDIA L20

We compared two Desktop platform GPUs: 24GB VRAM Radeon RX 7990 XTX and 48GB VRAM L20 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock has increased by 43% (3599MHz vs 2520MHz)

Larger VRAM bandwidth (1152GB/s vs 864.0GB/s)

NVIDIA L20 's Advantages

More VRAM (48GB vs 24GB)

5632 additional rendering cores

Lower TDP (275W vs 405W)

Score

Benchmark

FP32 (float)

Radeon RX 7990 XTX +49%

88.45 TFLOPS

L20

59.35 TFLOPS

Radeon RX 7990 XTX

VS

L20

Graphics Card

Unknown

Release Date

Nov 2023

Navi III

Generation

Tesla Ada

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2500 MHz

Base Clock

1440 MHz

3599 MHz

Boost Clock

2520 MHz

3000 MHz

Memory Clock

2250 MHz

Memory

24GB

Memory Size

48GB

GDDR6

Memory Type

GDDR6

384bit

Memory Bus

384bit

1152GB/s

Bandwidth

864.0GB/s

Render Config

96

Compute Units

-

SM Count

92

6144

Shading Units

11776

384

TMUs

368

192

ROPs

128

-

Tensor Cores

368

96

RT Cores

92

256 KB per Array

L1 Cache

128 KB (per SM)

6 MB

L2 Cache

96 MB

192 MB

L3 Cache

-

Theoretical Performance

691.0 GPixel/s

Pixel Rate

322.6 GPixel/s

1382 GTexel/s

Texture Rate

927.4 GTexel/s

176.9 TFLOPS

FP16 (half)

59.35 TFLOPS

88.45 TFLOPS

FP32 (float)

59.35 TFLOPS

2.764 TFLOPS

FP64 (double)

927.4 GFLOPS

Board Design

405W

TDP

275W

800 W

Suggested PSU

600 W

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

Outputs

4x DisplayPort 1.4a

3x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Navi 31

GPU Name

AD102

Navi 31 XTX+

GPU Variant

AD102

RDNA 3.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

5 nm

Process Size

5 nm

57.7 billion

Transistors

76.3 billion

529 mm²

Die Size

609 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

8.9

6.7

Shader Model

6.7

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