AMD Radeon HD 6490 vs NVIDIA RTX A400

VS

AMD Radeon HD 6490

NVIDIA RTX A400

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6490 and 4GB VRAM RTX A400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 50W)

NVIDIA RTX A400 's Advantages

Released 12 years and 9 months late

Boost Clock1762MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (96.00GB/s vs 16.00GB/s)

448 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490

0.352 TFLOPS

RTX A400 +668%

2.706 TFLOPS

Radeon HD 6490

VS

RTX A400

Graphics Card

Jul 2011

Release Date

Apr 2024

Northern Islands

Generation

Quadro Ampere(Ax000)

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1417 MHz

-

Boost Clock

1762 MHz

500 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

4GB

DDR2

Memory Type

GDDR6

128bit

Memory Bus

64bit

16.00GB/s

Bandwidth

96.00GB/s

Render Config

4

Compute Units

-

SM Count

6

320

Shading Units

768

16

TMUs

24

8

ROPs

16

-

Tensor Cores

24

-

RT Cores

6

8 KB (per CU)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

28.19 GPixel/s

8.800 GTexel/s

Texture Rate

42.29 GTexel/s

-

FP16 (half)

2.706 TFLOPS

352.0 GFLOPS

FP32 (float)

2.706 TFLOPS

-

FP64 (double)

42.29 GFLOPS

Board Design

39W

TDP

50W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

4x mini-DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

Redwood

GPU Name

GA107

Redwood LE

GPU Variant

-

TeraScale 2

Architecture

Ampere

TSMC

Foundry

Samsung

40 nm

Process Size

8 nm

0.627 billion

Transistors

8.7 billion

104 mm²

Die Size

200 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

8.6

5.0

Shader Model

6.8

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