AMD Radeon R9 390X vs AMD Radeon RX 590

Table of Contents

Graphics Processor

GPU model Grenada Polaris 30
GPU variant Grenada XT (215-0880004) Polaris 30 XT (215-0922006)
Architecture GCN 2.0 GCN 4.0
Foundry TSMC GlobalFoundries
Manufacturing process 28 nm 12 nm
Number of transistors 6,200 million 5,700 million
Die size 438 mm² 232 mm²

Graphics Card

Release date Jun 18th, 2015 Nov 15th, 2018
Generation Pirate Islands Polaris
Production End-of-life Active
Launch price 429 USD 279 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 60 in our database 36 in our database
Predecessor Volcanic Islands Arctic Islands
Successor Arctic Islands Vega
Current price Amazon / Newegg

Clocks

GPU clock 1050 MHz
Memory clock 1500 MHz 6 Gbps effective 2000 MHz 8 Gbps effective
Base clock 1469 MHz
Boost clock 1545 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 2816 2304
TMUs 176 144
ROPs 64 32
Compute units 44 36
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 1024 KB 2 MB

Performance

Pixel rate 67.20 GPixel/s 49.44 GPixel/s
Texture rate 184.8 GTexel/s 222.5 GTexel/s
FP32 (float) performance 5.914 TFLOPS 7.119 TFLOPS
FP64 (double) performance 739.2 GFLOPS (1:8) 445.0 GFLOPS (1:16)
FP16 (half) performance 7.119 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 175 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 C671, C679-37 C944-41

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

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