AMD Radeon RX 580X vs AMD Radeon R9 390

VS

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580X and 8GB VRAM Radeon R9 390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580X 's Advantages

Released 2 years and 10 months late

Boost Clock1340MHz

Lower TDP (185W vs 275W)

AMD Radeon R9 390 's Advantages

Larger VRAM bandwidth (384.0GB/s vs 256.0GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 580X +20%

6.175 TFLOPS

Radeon R9 390

5.12 TFLOPS

Radeon RX 580X

VS

Radeon R9 390

Graphics Card

Apr 2018

Release Date

Jun 2015

Polaris

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1257 MHz

Base Clock

-

1340 MHz

Boost Clock

-

2000 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

512bit

256.0GB/s

Bandwidth

384.0GB/s

Render Config

-

SM Count

-

36

Compute Units

40

2304

Shading Units

2560

144

TMUs

160

32

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

1024 KB

Theoretical Performance

42.88 GPixel/s

Pixel Rate

64.00 GPixel/s

193.0 GTexel/s

Texture Rate

160.0 GTexel/s

6.175 TFLOPS

FP16 (half)

-

6.175 TFLOPS

FP32 (float)

5.120 TFLOPS

385.9 GFLOPS

FP64 (double)

640.0 GFLOPS

Graphics Processor

Polaris 20

GPU Name

Grenada

Polaris 20 XTX (215-0910038)

GPU Variant

Grenada PRO (215-0880030)

GCN 4.0

Architecture

GCN 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

6.2 billion

232 mm²

Die Size

438 mm²

Board Design

185W

TDP

275W

450 W

Suggested PSU

600 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

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

1x 8-pin

Power Connectors

1x 6-pin + 1x 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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