AMD Radeon RX 550 vs AMD Radeon RX 6900 XTX

VS

AMD Radeon RX 550

AMD Radeon RX 6900 XTX

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 and 16GB VRAM Radeon RX 6900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 's Advantages

Lower TDP (50W vs 330W)

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock has increased by 106% (2435MHz vs 1183MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 112.0GB/s)

4608 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550

1.211 TFLOPS

Radeon RX 6900 XTX +1958%

24.93 TFLOPS

Radeon RX 550

VS

Radeon RX 6900 XTX

Graphics Card

Apr 2017

Release Date

Unknown

Polaris

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1100 MHz

Base Clock

2075 MHz

1183 MHz

Boost Clock

2435 MHz

1750 MHz

Memory Clock

2250 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

256bit

112.0GB/s

Bandwidth

576.0GB/s

Render Config

8

Compute Units

80

-

512

Shading Units

5120

32

TMUs

320

16

ROPs

128

-

RT Cores

80

16 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

18.93 GPixel/s

Pixel Rate

311.7 GPixel/s

37.86 GTexel/s

Texture Rate

779.2 GTexel/s

1211 GFLOPS

FP16 (half)

49.87 TFLOPS

1211 GFLOPS

FP32 (float)

24.93 TFLOPS

75.71 GFLOPS

FP64 (double)

1.558 TFLOPS

Board Design

50W

TDP

330W

250 W

Suggested PSU

700 W

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

Outputs

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

None

Power Connectors

2x 8-pin

Graphics Processor

Lexa

GPU Name

Navi 21

Lexa PRO (215-0904018)

GPU Variant

Navi 21 XTXH (215-121000247)

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

2.2 billion

Transistors

26.8 billion

103 mm²

Die Size

520 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

6.4

Shader Model

6.5

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