AMD Radeon RX 6800 XT vs AMD Radeon RX 6400

VS

AMD Radeon RX 6800 XT AMD Radeon RX 6400

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 4GB VRAM Radeon RX 6400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 XT 's Advantages

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (512.0GB/s vs 128.0GB/s)

3840 additional rendering cores

AMD Radeon RX 6400 's Advantages

Released 1 years and 3 months late

Boost Clock has increased by 3% (2321MHz vs 2250MHz)

Lower TDP (53W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 XT +481%

20.74 TFLOPS

Radeon RX 6400

3.565 TFLOPS

3DMark Time Spy

Radeon RX 6800 XT +442%

19428

Radeon RX 6400

3579

Blender

Radeon RX 6800 XT +714%

2647

Radeon RX 6400

325

Shadow of the Tomb Raider 2160p

Radeon RX 6800 XT +800%

72

Radeon RX 6400

8

Shadow of the Tomb Raider 1440p

Radeon RX 6800 XT +570%

134

Radeon RX 6400

20

Shadow of the Tomb Raider 1080p

Radeon RX 6800 XT +437%

188

Radeon RX 6400

35

Cyberpunk 2077 2160p

Radeon RX 6800 XT +650%

60

Radeon RX 6400

8

Cyberpunk 2077 1440p

Radeon RX 6800 XT +527%

69

Radeon RX 6400

11

Cyberpunk 2077 1080p

Radeon RX 6800 XT +385%

102

Radeon RX 6400

21

Battlefield 5 2160p

Radeon RX 6800 XT +447%

104

Radeon RX 6400

19

Battlefield 5 1440p

Radeon RX 6800 XT +397%

179

Radeon RX 6400

36

Battlefield 5 1080p

Radeon RX 6800 XT +314%

199

Radeon RX 6400

48

Radeon RX 6800 XT

VS

Radeon RX 6400

Graphics Card

Oct 2020

Release Date

Jan 2022

Navi II

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

1825 MHz

Base Clock

1923 MHz

2250 MHz

Boost Clock

2321 MHz

2000 MHz

Memory Clock

2000 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

64bit

512.0GB/s

Bandwidth

128.0GB/s

Render Config

-

SM Count

-

72

Compute Units

12

4608

Shading Units

768

288

TMUs

48

128

ROPs

32

-

Tensor Cores

-

72

RT Cores

12

128 KB per Array

L1 Cache

128 KB per Array

4 MB

L2 Cache

1024 KB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

74.27 GPixel/s

648.0 GTexel/s

Texture Rate

111.4 GTexel/s

41.47 TFLOPS

FP16 (half)

7.130 TFLOPS

20.74 TFLOPS

FP32 (float)

3.565 TFLOPS

1296 GFLOPS

FP64 (double)

222.8 GFLOPS

Graphics Processor

Navi 21

GPU Name

Navi 24

Navi 21 XT (215-121000177)

GPU Variant

Navi 24 XL (215-135000046)

RDNA 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

6 nm

26.8 billion

Transistors

5.4 billion

520 mm²

Die Size

107 mm²

Board Design

300W

TDP

53W

700 W

Suggested PSU

250 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

2x 8-pin

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.2

1.3

Vulkan

1.3

-

CUDA

-

6.5

Shader Model

6.6

Related GPU Comparisons

1

AMD Radeon RX 6800 XT vs AMD Radeon RX 7800 XT

2

AMD Radeon RX 6800 XT vs AMD Radeon RX 7700 XT

3

AMD Radeon RX 6800 XT vs AMD Radeon RX 6700 XT

4

AMD Radeon RX 6800 XT vs AMD Radeon RX 6900 XT

5

AMD Radeon RX 6800 XT vs AMD Radeon RX 6750 XT

6

AMD Radeon RX 6800 XT vs NVIDIA GeForce RTX 4070 Ti

7

AMD Radeon RX 6800 XT vs NVIDIA GeForce RTX 4060 Ti 8 GB

8

AMD Radeon RX 6800 XT vs NVIDIA GeForce GT 120 Mac Edition

9

AMD Radeon RX 6800 XT vs NVIDIA GeForce RTX 4080 16 GB

10

AMD Radeon RX 6800 XT vs AMD Radeon RX 590 GME

Related News

1

AMD's Latest Breakthrough Technology Could Change the Game in the Future

2

Researchers Utilize NVIDIA Omniverse Platform to Analyze and Improve 3D Stacked Chip Designs

3

TSMC to Receive Over 60 EUV Lithography Machines Over the Next Two Years, Investing More Than $12.3 Billion

4

Samsung's Own 3nm Yield is Disheartening: Galaxy S25 May Introduce MediaTek for the First Time

5

AMD Ryzen 9000 DDR5 Memory Frequency Soars: Reaches 8000MHz with All Four Slots Occupied

6

Snapdragon 8 Gen 4 to Feature Frame Interpolation for GPU: A Game-Changing Experience

7

Intel Adds 5 New Device IDs to Latest Linux Xe Kernel in Preparation for Battlemage

8

Ryzen AI 9 365 Benchmark Results Leaked: Significant Improvements in Multi-Core and IPC Performance Over Previous Generation

9

Concerns Raised by Unstable 13th/14th Gen Core CPUs: Motherboard Manufacturers Worry About Impact on Arrow Lake Release and Sales

10

Do You Really Know What a "Rendering Engine" Is? Read This Article to Understand All About It