Radeon HD 6870 X2 vs Radeon R7 250X

Radeon HD 6870 X2
Memory: 1024Mb GDDR5DESKTOP
Release date: 8 Jul 2011
Radeon HD 6870 X2
Radeon R7 250X
Memory: 1024Mb GDDR5DESKTOP
Release date: 13 Feb 2014
Radeon R7 250X

Summary

Reasons to consider Radeon HD 6870 X2

Higher theoretical gaming performance, based on specifications.
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon R7 250X

220 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6870 X2 .
This is a much newer product, it might have better long term support.
Supports Direct3D 12 Async Compute
Supports ReLive (allows game streaming/recording with minimum performance penalty)
Supports Mantle
Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Radeon HD 6870 X2

HWBench recommends Radeon HD 6870 X2

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 6870 X2Radeon R7 250X
GPU NameBarts (Barts XT)vsCape Verde (Cape Verde XT)
Fab Process40 nmvs28 nm
Die Size255 mm²vs123 mm²
Transistors1,700 millionvs1,500 million
Shaders1120vs640
Compute Units14vs10
Core clock900 MHzvs950 MHz
ROPs32vs16
TMUs56vs40

Memory Configuration

Radeon HD 6870 X2Radeon R7 250X
Memory TypeGDDR5vsGDDR5
Bus Width256 bit x2vs128 bit
Memory Speed1050 MHz
4200 MHz effective
vs1125 MHz
4500 MHz effective
Memory Size1024 Mbvs1024 Mb

Additional details

Radeon HD 6870 X2Radeon R7 250X
TDP300 wattsvs80 watts
Release Date8 Jul 2011vs13 Feb 2014

Raw Performance comparison

Pixel Rate

  • Radeon HD 6870 X2
    57.60 GP/s
  • Radeon R7 250X
    15.20 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6870 X2
    100.80 GT/s
  • Radeon R7 250X
    38.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6870 X2
    268.00 GB/s
  • Radeon R7 250X
    72.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6870 X2
    4032.00 GFLOPs
  • Radeon R7 250X
    1216.00 GFLOPs

GFLOPs - higher is better