AMD Radeon HD 6990 vs NVIDIA L20

VS

AMD Radeon HD 6990

NVIDIA L20

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 48GB VRAM L20 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA L20 's Advantages

Released 12 years and 8 months late

Boost Clock2520MHz

More VRAM (48GB vs 2GB)

Larger VRAM bandwidth (864.0GB/s vs 160.0GB/s)

10240 additional rendering cores

Lower TDP (275W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990

2.55 TFLOPS

L20 +2227%

59.35 TFLOPS

Radeon HD 6990

VS

L20

Graphics Card

Mar 2011

Release Date

Nov 2023

Northern Islands

Generation

Tesla Ada

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1440 MHz

-

Boost Clock

2520 MHz

1250 MHz

Memory Clock

2250 MHz

Memory

2GB

Memory Size

48GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

384bit

160.0GB/s

Bandwidth

864.0GB/s

Render Config

24

Compute Units

-

SM Count

92

1536

Shading Units

11776

96

TMUs

368

32

ROPs

128

-

Tensor Cores

368

-

RT Cores

92

8 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

96 MB

-

Theoretical Performance

26.56 GPixel/s

Pixel Rate

322.6 GPixel/s

79.68 GTexel/s

Texture Rate

927.4 GTexel/s

-

FP16 (half)

59.35 TFLOPS

2.550 TFLOPS

FP32 (float)

59.35 TFLOPS

637.4 GFLOPS

FP64 (double)

927.4 GFLOPS

Board Design

375W

TDP

275W

750 W

Suggested PSU

600 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

4x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Antilles

GPU Name

AD102

Antilles XT (215-0807027)

GPU Variant

AD102

TeraScale 3

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

40 nm

Process Size

5 nm

2.64 billion

Transistors

76.3 billion

389 mm²

Die Size

609 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.9

5.0

Shader Model

6.7

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