AMD Radeon RX 550 vs AMD Radeon R9 390 X2

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 and 8GB VRAM Radeon R9 390 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 's Advantages

Released 1 years and 7 months late

Boost Clock1183MHz

Lower TDP (50W vs 580W)

AMD Radeon R9 390 X2 's Advantages

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (345.6GB/s vs 112.0GB/s)

2048 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550

1.211 TFLOPS

Radeon R9 390 X2 +322%

5.12 TFLOPS

Radeon RX 550

VS

Radeon R9 390 X2

Graphics Card

Apr 2017

Release Date

Sep 2015

Polaris

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1183 MHz

Boost Clock

-

1750 MHz

Memory Clock

1350 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

512bit

112.0GB/s

Bandwidth

345.6GB/s

Render Config

-

SM Count

-

8

Compute Units

40

512

Shading Units

2560

32

TMUs

160

16

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

Theoretical Performance

18.93 GPixel/s

Pixel Rate

64.00 GPixel/s

37.86 GTexel/s

Texture Rate

160.0 GTexel/s

1211 GFLOPS

FP16 (half)

-

1211 GFLOPS

FP32 (float)

5.120 TFLOPS

75.71 GFLOPS

FP64 (double)

640.0 GFLOPS

Graphics Processor

Lexa

GPU Name

Grenada

Lexa PRO (215-0904018)

GPU Variant

Grenada PRO (215-0880030)

GCN 4.0

Architecture

GCN 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

6.2 billion

103 mm²

Die Size

438 mm²

Board Design

50W

TDP

580W

250 W

Suggested PSU

950 W

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

Outputs

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

None

Power Connectors

4x 8-pin

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

6.3

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