Radeon R9 295X2 vs Radeon R9 390 X2

Radeon R9 295X2
Memory: 4096Mb GDDR5DESKTOP
Release date: 29 Apr 2014
Radeon R9 295X2
Radeon R9 390 X2
Memory: 8192Mb GDDR5DESKTOP
Release date: 3 Sep 2015
Radeon R9 390 X2

Summary

Reasons to consider Radeon R9 295X2

80 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon R9 390 X2 .
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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications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 390 X2

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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

No clear winner declared

We have no data to declare a winner at this time.


Specifications

Core Configuration

Radeon R9 295X2Radeon R9 390 X2
GPU NameVesuvius (Vesuvius XT)vsGrenada (Grenada PRO)
Fab Process28 nmvs28 nm
Die Size438 mm²vs438 mm²
Transistors6,200 millionvs6,200 million
Shaders2816vs2560
Compute Units44vs40
Core clock1018 MHzvs1000 MHz
ROPs64vs64
TMUs176vs160

Memory Configuration

Radeon R9 295X2Radeon R9 390 X2
Memory TypeGDDR5vsGDDR5
Bus Width512 bit x2vs512 bit x2
Memory Speed1250 MHz
5000 MHz effective
vs1350 MHz
5400 MHz effective
Memory Size4096 Mbvs8192 Mb

Additional details

Radeon R9 295X2Radeon R9 390 X2
TDP500 wattsvs580 watts
Release Date29 Apr 2014vs3 Sep 2015

Raw Performance comparison

Pixel Rate

  • Radeon R9 295X2
    130.40 GP/s
  • Radeon R9 390 X2
    128.00 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon R9 295X2
    358.40 GT/s
  • Radeon R9 390 X2
    320.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon R9 295X2
    640.00 GB/s
  • Radeon R9 390 X2
    692.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon R9 295X2
    11466.00 GFLOPs
  • Radeon R9 390 X2
    10240.00 GFLOPs

GFLOPs - higher is better