AMD Radeon RX 6400 vs AMD Radeon HD 6490

VS

AMD Radeon RX 6400

AMD Radeon HD 6490

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 1024MB VRAM Radeon HD 6490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Released 10 years and 6 months late

Boost Clock2321MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (128.0GB/s vs 16.00GB/s)

448 additional rendering cores

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 53W)

Score

Benchmark

FP32 (float)

Radeon RX 6400 +912%

3.565 TFLOPS

Radeon HD 6490

0.352 TFLOPS

Radeon RX 6400

VS

Radeon HD 6490

Graphics Card

Jan 2022

Release Date

Jul 2011

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 2.0 x16

Clock Speeds

1923 MHz

Base Clock

-

2321 MHz

Boost Clock

-

2000 MHz

Memory Clock

500 MHz

Memory

4GB

Memory Size

1024MB

GDDR6

Memory Type

DDR2

64bit

Memory Bus

128bit

128.0GB/s

Bandwidth

16.00GB/s

Render Config

12

Compute Units

4

-

768

Shading Units

320

48

TMUs

16

32

ROPs

8

-

12

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

256 KB

16 MB

L3 Cache

-

Theoretical Performance

74.27 GPixel/s

Pixel Rate

4.400 GPixel/s

111.4 GTexel/s

Texture Rate

8.800 GTexel/s

7.130 TFLOPS

FP16 (half)

-

3.565 TFLOPS

FP32 (float)

352.0 GFLOPS

222.8 GFLOPS

FP64 (double)

-

Board Design

53W

TDP

39W

250 W

Suggested PSU

200 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

Navi 24

GPU Name

Redwood

Navi 24 XL (215-135000046)

GPU Variant

Redwood LE

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

6 nm

Process Size

40 nm

5.4 billion

Transistors

0.627 billion

107 mm²

Die Size

104 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.2

OpenCL

1.2

1.3

Vulkan

N/A

-

6.7

Shader Model

5.0

Related GPU Comparisons

1

AMD Radeon RX 6400 vs NVIDIA GeForce RTX 3060 3840SP

2

AMD Radeon RX 6400 vs AMD Radeon R9 270 1024SP

3

AMD Radeon RX 6400 vs AMD Radeon RX 5600 XT

4

AMD Radeon RX 6400 vs NVIDIA GeForce GTX 1060 8 GB GDDR5X

5

AMD Radeon RX 6400 vs ATI Radeon HD 4770

6

AMD Radeon RX 6400 vs NVIDIA GeForce RTX 3060 GA104

7

AMD Radeon RX 6400 vs AMD FirePro R5000

8

AMD Radeon RX 6400 vs AMD Radeon R5 230 OEM

9

AMD Radeon RX 6400 vs NVIDIA GeForce GTX TITAN Z

10

AMD Radeon RX 6400 vs ATI Radeon X1650 GTO

Related News

1

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

2

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

3

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

4

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

5

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

6

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU

7

Cyberpunk 2077 Update 2.2: Intel Arrow Lake Gaming Performance Soars by 33%!

8

Intel Finally Achieves Frame Generation! 'F1 24' Becomes the First XeSS 2 Game

9

World's First! Intel Arc B580 Graphics Card Arrives Early

10

Linux Creator Criticizes AMD and Intel's x86 Microarchitecture: A Complete Disaster