AMD Radeon RX 550 512SP vs AMD Radeon RX 6900 XT

VS

AMD Radeon RX 550 512SP

AMD Radeon RX 6900 XT

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 512SP and 16GB VRAM Radeon RX 6900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 512SP 's Advantages

Lower TDP (50W vs 300W)

AMD Radeon RX 6900 XT 's Advantages

Released 3 years late

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

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 96.00GB/s)

4608 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550 512SP

1.097 TFLOPS

Radeon RX 6900 XT +2000%

23.04 TFLOPS

Radeon RX 550 512SP

VS

Radeon RX 6900 XT

Graphics Card

Oct 2017

Release Date

Oct 2020

Polaris

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1019 MHz

Base Clock

1825 MHz

1071 MHz

Boost Clock

2250 MHz

1500 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

256bit

96.00GB/s

Bandwidth

512.0GB/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

17.14 GPixel/s

Pixel Rate

288.0 GPixel/s

34.27 GTexel/s

Texture Rate

720.0 GTexel/s

1097 GFLOPS

FP16 (half)

46.08 TFLOPS

1097 GFLOPS

FP32 (float)

23.04 TFLOPS

68.54 GFLOPS

FP64 (double)

1440 GFLOPS

Board Design

50W

TDP

300W

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

Baffin

GPU Name

Navi 21

Baffin LE

GPU Variant

Navi 21 XTX (215-121000167)

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

3 billion

Transistors

26.8 billion

123 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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