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

VS

AMD Radeon RX 6900 XTX AMD Radeon RX 550 512SP

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

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock has increased by 127% (2435MHz vs 1071MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 96.00GB/s)

4608 additional rendering cores

AMD Radeon RX 550 512SP 's Advantages

Lower TDP (50W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +2172%

24.93 TFLOPS

Radeon RX 550 512SP

1.097 TFLOPS

Radeon RX 6900 XTX

VS

Radeon RX 550 512SP

Graphics Card

Unknown

Release Date

Oct 2017

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

2075 MHz

Base Clock

1019 MHz

2435 MHz

Boost Clock

1071 MHz

2250 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

-

80

Compute Units

8

5120

Shading Units

512

320

TMUs

32

128

ROPs

16

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

Theoretical Performance

311.7 GPixel/s

Pixel Rate

17.14 GPixel/s

779.2 GTexel/s

Texture Rate

34.27 GTexel/s

49.87 TFLOPS

FP16 (half)

1097 GFLOPS

24.93 TFLOPS

FP32 (float)

1097 GFLOPS

1.558 TFLOPS

FP64 (double)

68.54 GFLOPS

Graphics Processor

Navi 21

GPU Name

Baffin

Navi 21 XTXH (215-121000247)

GPU Variant

Baffin LE

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

26.8 billion

Transistors

3 billion

520 mm²

Die Size

123 mm²

Board Design

330W

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

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