AMD Radeon 550X vs AMD Radeon RX 455 OEM

VS

AMD Radeon 550X

AMD Radeon RX 455 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon 550X and 2GB VRAM Radeon RX 455 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 's Advantages

Released 2 years and 9 months late

Boost Clock1218MHz

Larger VRAM bandwidth (112.0GB/s vs 104.0GB/s)

Lower TDP (50W vs 100W)

AMD Radeon RX 455 OEM 's Advantages

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X

1.247 TFLOPS

Radeon RX 455 OEM +29%

1.613 TFLOPS

Radeon 550X

VS

Radeon RX 455 OEM

Graphics Card

Mar 2019

Release Date

Jun 2016

Polaris

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1082 MHz

Base Clock

-

1218 MHz

Boost Clock

-

1750 MHz

Memory Clock

1625 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

112.0GB/s

Bandwidth

104.0GB/s

Render Config

8

Compute Units

12

-

512

Shading Units

768

32

TMUs

48

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

16.80 GPixel/s

38.98 GTexel/s

Texture Rate

50.40 GTexel/s

1247 GFLOPS

FP16 (half)

-

1247 GFLOPS

FP32 (float)

1.613 TFLOPS

77.95 GFLOPS

FP64 (double)

100.8 GFLOPS

Board Design

50W

TDP

100W

250 W

Suggested PSU

300 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

Lexa

GPU Name

Tobago

Lexa PRO (215-0904018)

GPU Variant

Tobago PRO (215-0875010)

GCN 4.0

Architecture

GCN 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

2.08 billion

103 mm²

Die Size

160 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2

Vulkan

1.2

-

6.4

Shader Model

6.3

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