AMD Radeon RX 560X vs AMD Radeon R9 390 X2

VS

AMD Radeon RX 560X

AMD Radeon R9 390 X2

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 560X 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 560X 's Advantages

Released 2 years and 7 months late

Boost Clock1275MHz

Lower TDP (75W vs 580W)

AMD Radeon R9 390 X2 's Advantages

More VRAM (8GB vs 4GB)

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

1536 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 560X

2.611 TFLOPS

Radeon R9 390 X2 +96%

5.12 TFLOPS

Radeon RX 560X

VS

Radeon R9 390 X2

Graphics Card

Apr 2018

Release Date

Sep 2015

Polaris

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1175 MHz

Base Clock

-

1275 MHz

Boost Clock

-

1750 MHz

Memory Clock

1350 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

512bit

112.0GB/s

Bandwidth

345.6GB/s

Render Config

16

Compute Units

40

-

1024

Shading Units

2560

64

TMUs

160

16

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

1024 KB

-

Theoretical Performance

20.40 GPixel/s

Pixel Rate

64.00 GPixel/s

81.60 GTexel/s

Texture Rate

160.0 GTexel/s

2.611 TFLOPS

FP16 (half)

-

2.611 TFLOPS

FP32 (float)

5.120 TFLOPS

163.2 GFLOPS

FP64 (double)

640.0 GFLOPS

Board Design

75W

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 Processor

Polaris 21

GPU Name

Grenada

Polaris 21 XT (215-0908004)

GPU Variant

Grenada PRO (215-0880030)

GCN 4.0

Architecture

GCN 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

6.2 billion

123 mm²

Die Size

438 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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