NVIDIA L20 vs AMD Radeon HD 7990

VS

NVIDIA L20

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 48GB VRAM L20 and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA L20 's Advantages

Released 10 years and 7 months late

Boost Clock has increased by 152% (2520MHz vs 1000MHz)

More VRAM (48GB vs 3GB)

Larger VRAM bandwidth (864.0GB/s vs 288.0GB/s)

9728 additional rendering cores

Lower TDP (275W vs 375W)

Score

Benchmark

FP32 (float)

L20 +1348%

59.35 TFLOPS

Radeon HD 7990

4.096 TFLOPS

L20

VS

Radeon HD 7990

Graphics Card

Nov 2023

Release Date

Apr 2013

Tesla Ada

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1440 MHz

Base Clock

950 MHz

2520 MHz

Boost Clock

1000 MHz

2250 MHz

Memory Clock

1500 MHz

Memory

48GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

384bit

Memory Bus

384bit

864.0GB/s

Bandwidth

288.0GB/s

Render Config

-

Compute Units

32

92

SM Count

-

11776

Shading Units

2048

368

TMUs

128

ROPs

32

368

Tensor Cores

-

92

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

96 MB

L2 Cache

768 KB

-

Theoretical Performance

322.6 GPixel/s

Pixel Rate

32.00 GPixel/s

927.4 GTexel/s

Texture Rate

128.0 GTexel/s

59.35 TFLOPS

FP16 (half)

-

59.35 TFLOPS

FP32 (float)

4.096 TFLOPS

927.4 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

275W

TDP

375W

600 W

Suggested PSU

750 W

4x DisplayPort 1.4a

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 16-pin

Power Connectors

2x 8-pin

Graphics Processor

AD102

GPU Name

Malta

AD102

GPU Variant

Malta XT (215-0849026)

Ada Lovelace

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

76.3 billion

Transistors

4.313 billion

609 mm²

Die Size

365 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

8.9

CUDA

-

6.7

Shader Model

5.1

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