Radeon R9 290X2 vs Radeon R9 390X

Radeon R9 290X2
Memory: 4096Mb GDDR5DESKTOP
Release date: 24 Jun 2014
Radeon R9 290X2
Radeon R9 390X
Memory: 8192Mb GDDR5DESKTOP
Release date: 18 Jun 2015
Radeon R9 390X
You are comparing OEM or variant versions of at least one VGA. Did you mean Radeon R9 295X2 vs Radeon R9 390X instead?

Summary

Reasons to consider Radeon R9 290X2

Higher theoretical gaming performance, based on specifications.
Supports Direct3D 12 Async Compute
Supports FreeSync
Supports ReLive (allows game streaming/recording with minimum performance penalty)
Supports TrueAudio
Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Reasons to consider Radeon R9 390X

305 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon R9 290X2 .
This is a much newer product, it might have better long term support.
Supports Direct3D 12 Async Compute
Supports FreeSync
Supports ReLive (allows game streaming/recording with minimum performance penalty)
Supports TrueAudio
Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Radeon R9 290X2

HWBench recommends Radeon R9 290X2

Based on theoretical specifications.


Specifications

Core Configuration

Radeon R9 290X2Radeon R9 390X
GPU NameHawaii (Hawaii XT)vsGrenada (Grenada XT)
Fab Process28 nmvs28 nm
Die Size438 mm²vs438 mm²
Transistors6,200 millionvs6,200 million
Shaders2816vs2816
Compute Units44vs44
Core clock1000 MHzvs1050 MHz
ROPs64vs64
TMUs176vs176

Memory Configuration

Radeon R9 290X2Radeon R9 390X
Memory TypeGDDR5vsGDDR5
Bus Width512 bit x2vs512 bit
Memory Speed1350 MHz
5400 MHz effective
vs1500 MHz
6000 MHz effective
Memory Size4096 Mbvs8192 Mb

Additional details

Radeon R9 290X2Radeon R9 390X
TDP580 wattsvs275 watts
Release Date24 Jun 2014vs18 Jun 2015

Raw Performance comparison

Pixel Rate

  • Radeon R9 290X2
    128.00 GP/s
  • Radeon R9 390X
    67.20 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon R9 290X2
    352.00 GT/s
  • Radeon R9 390X
    184.80 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon R9 290X2
    692.00 GB/s
  • Radeon R9 390X
    384.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon R9 290X2
    11264.00 GFLOPs
  • Radeon R9 390X
    5914.00 GFLOPs

GFLOPs - higher is better