AMD Radeon RX 6800 XT vs AMD Radeon 550X 640SP

VS

AMD Radeon RX 6800 XT AMD Radeon 550X 640SP

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 4GB VRAM Radeon 550X 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 XT 's Advantages

Released 2 years and 6 months late

Boost Clock has increased by 110% (2250MHz vs 1071MHz)

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (512.0GB/s vs 48.00GB/s)

3968 additional rendering cores

AMD Radeon 550X 640SP 's Advantages

Lower TDP (50W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 XT +1412%

20.74 TFLOPS

Radeon 550X 640SP

1.371 TFLOPS

Radeon RX 6800 XT

VS

Radeon 550X 640SP

Graphics Card

Oct 2020

Release Date

Apr 2018

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1825 MHz

Base Clock

1019 MHz

2250 MHz

Boost Clock

1071 MHz

2000 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

64bit

512.0GB/s

Bandwidth

48.00GB/s

Render Config

-

SM Count

-

72

Compute Units

10

4608

Shading Units

640

288

TMUs

40

128

ROPs

16

-

Tensor Cores

-

72

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

17.14 GPixel/s

648.0 GTexel/s

Texture Rate

42.84 GTexel/s

41.47 TFLOPS

FP16 (half)

1371 GFLOPS

20.74 TFLOPS

FP32 (float)

1371 GFLOPS

1296 GFLOPS

FP64 (double)

85.68 GFLOPS

Graphics Processor

Navi 21

GPU Name

Lexa

Navi 21 XT (215-121000177)

GPU Variant

Lexa PRO (215-0904018)

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

26.8 billion

Transistors

2.2 billion

520 mm²

Die Size

103 mm²

Board Design

300W

TDP

50W

700 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

2x 8-pin

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

6.4

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 330 OEM

9

AMD Radeon RX 6800 XT vs ATI Radeon HD 2900 PRO

10

AMD Radeon RX 6800 XT vs ATI All In Wonder HD 3650

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