AMD Radeon R9 380X vs AMD Radeon 550X

VS

AMD Radeon R9 380X

AMD Radeon 550X

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380X and 2GB VRAM Radeon 550X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 380X 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (182.4GB/s vs 112.0GB/s)

1536 additional rendering cores

AMD Radeon 550X 's Advantages

Released 3 years and 4 months late

Boost Clock1218MHz

Lower TDP (50W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 380X +218%

3.973 TFLOPS

Radeon 550X

1.247 TFLOPS

Radeon R9 380X

VS

Radeon 550X

Graphics Card

Nov 2015

Release Date

Mar 2019

Pirate Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1082 MHz

-

Boost Clock

1218 MHz

1425 MHz

Memory Clock

1750 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

182.4GB/s

Bandwidth

112.0GB/s

Render Config

32

Compute Units

8

-

2048

Shading Units

512

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

31.04 GPixel/s

Pixel Rate

19.49 GPixel/s

124.2 GTexel/s

Texture Rate

38.98 GTexel/s

3.973 TFLOPS

FP16 (half)

1247 GFLOPS

3.973 TFLOPS

FP32 (float)

1247 GFLOPS

248.3 GFLOPS

FP64 (double)

77.95 GFLOPS

Board Design

190W

TDP

50W

450 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Processor

Antigua

GPU Name

Lexa

Antigua XT (215-0877016)

GPU Variant

Lexa PRO (215-0904018)

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

5 billion

Transistors

2.2 billion

366 mm²

Die Size

103 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

6.3

Shader Model

6.4

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