AMD Radeon R9 390 vs AMD Radeon RX 580

Table of Contents

Graphics Processor

GPU model Grenada Polaris 20
GPU variant Grenada PRO (215-0880030) Polaris 20 XTX (215-0910038)
Architecture GCN 2.0 GCN 4.0
Foundry TSMC GlobalFoundries
Manufacturing process 28 nm 14 nm
Number of transistors 6,200 million 5,700 million
Die size 438 mm² 232 mm²

Graphics Card

Release date Jun 18th, 2015 Apr 18th, 2017
Generation Pirate Islands Polaris
Production End-of-life Active
Launch price 329 USD 229 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 35 in our database 52 in our database
Predecessor Volcanic Islands Arctic Islands
Successor Arctic Islands Vega
Current price Amazon / Newegg

Clocks

GPU clock 1000 MHz
Memory clock 1500 MHz 6 Gbps effective 2000 MHz 8 Gbps effective
Base clock 1257 MHz
Boost clock 1340 MHz

Memory Configuration

Memory size 8 GB 8 GB
Memory type GDDR5 GDDR5
Memory bus width 512 bit 256 bit
Bandwidth 384.0 GB/s 256.0 GB/s

Render Configuration

Shading units 2560 2304
TMUs 160 144
ROPs 64 32
Compute units 40 36
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 1024 KB 2 MB

Performance

Pixel rate 64.00 GPixel/s 42.88 GPixel/s
Texture rate 160.0 GTexel/s 193.0 GTexel/s
FP32 (float) performance 5.120 TFLOPS 6.175 TFLOPS
FP64 (double) performance 640.0 GFLOPS (1:8) 385.9 GFLOPS (1:16)
FP16 (half) performance 6.175 TFLOPS (1:1)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 275 mm 10.8 inches 241 mm 9.5 inches
Width 109 mm 4.3 inches
Height 36 mm 1.4 inches
TDP 275 W 185 W
Suggested PSU 600 W 450 W
Outputs 2x DVI1x HDMI1x DisplayPort 1x HDMI3x DisplayPort
Power connectors 1x 6-pin + 1x 8-pin 1x 8-pin
Board number C679 C940, D009-04

API Support & Features

DirectX 12 (12_0) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 2.0 2.1
Vulkan 1.2 1.2
Shader model 6.3 6.4

Other Features

Compare

Sysrqmts browser extension icon
Stop overpaying for PC games!
See cheapest prices in Steam store with our browser extension.