AMD Radeon R9 380X vs AMD Radeon 550X 640SP

VS

AMD Radeon R9 380X AMD Radeon 550X 640SP

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380X and 4GB VRAM Radeon 550X 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 380X 's Advantages

Larger VRAM bandwidth (182.4GB/s vs 48.00GB/s)

1408 additional rendering cores

AMD Radeon 550X 640SP 's Advantages

Released 2 years and 5 months late

Boost Clock1071MHz

Lower TDP (50W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 380X +189%

3.973 TFLOPS

Radeon 550X 640SP

1.371 TFLOPS

Radeon R9 380X

VS

Radeon 550X 640SP

Graphics Card

Nov 2015

Release Date

Apr 2018

Pirate Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1019 MHz

-

Boost Clock

1071 MHz

1425 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

182.4GB/s

Bandwidth

48.00GB/s

Render Config

-

SM Count

-

32

Compute Units

10

2048

Shading Units

640

128

TMUs

40

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

31.04 GPixel/s

Pixel Rate

17.14 GPixel/s

124.2 GTexel/s

Texture Rate

42.84 GTexel/s

3.973 TFLOPS

FP16 (half)

1371 GFLOPS

3.973 TFLOPS

FP32 (float)

1371 GFLOPS

248.3 GFLOPS

FP64 (double)

85.68 GFLOPS

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

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 Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

6.4

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