NVIDIA L20 vs AMD Radeon HD 6490

VS

NVIDIA L20

AMD Radeon HD 6490

We compared two Desktop platform GPUs: 48GB VRAM L20 and 1024MB VRAM Radeon HD 6490 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 4 months late

Boost Clock2520MHz

More VRAM (48GB vs 1024GB)

Larger VRAM bandwidth (864.0GB/s vs 16.00GB/s)

11456 additional rendering cores

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 275W)

Score

Benchmark

FP32 (float)

L20 +16760%

59.35 TFLOPS

Radeon HD 6490

0.352 TFLOPS

L20

VS

Radeon HD 6490

Graphics Card

Nov 2023

Release Date

Jul 2011

Tesla Ada

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1440 MHz

Base Clock

-

2520 MHz

Boost Clock

-

2250 MHz

Memory Clock

500 MHz

Memory

48GB

Memory Size

1024MB

GDDR6

Memory Type

DDR2

384bit

Memory Bus

128bit

864.0GB/s

Bandwidth

16.00GB/s

Render Config

-

Compute Units

4

92

SM Count

-

11776

Shading Units

320

368

TMUs

16

128

ROPs

8

368

Tensor Cores

-

92

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

96 MB

L2 Cache

256 KB

-

Theoretical Performance

322.6 GPixel/s

Pixel Rate

4.400 GPixel/s

927.4 GTexel/s

Texture Rate

8.800 GTexel/s

59.35 TFLOPS

FP16 (half)

-

59.35 TFLOPS

FP32 (float)

352.0 GFLOPS

927.4 GFLOPS

FP64 (double)

-

Board Design

275W

TDP

39W

600 W

Suggested PSU

200 W

4x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 16-pin

Power Connectors

None

Graphics Processor

AD102

GPU Name

Redwood

AD102

GPU Variant

Redwood LE

Ada Lovelace

Architecture

TeraScale 2

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

76.3 billion

Transistors

0.627 billion

609 mm²

Die Size

104 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

8.9

CUDA

-

6.7

Shader Model

5.0

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