Radeon HD 6870 vs Radeon R7 250X

Radeon HD 6870
Memory: 1024Mb GDDR5DESKTOP
Release date: 21 Oct 2010
Radeon HD 6870
Radeon R7 250X
Memory: 1024Mb GDDR5DESKTOP
Release date: 13 Feb 2014
Radeon R7 250X


Synthetic performance index

  • Radeon HD 6870
  • Radeon R7 250X

Relative performance

Reasons to consider Radeon HD 6870

Around 12% higher average synthetic performance.
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications.

Reasons to consider Radeon R7 250X

71 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6870 .
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.

Radeon HD 6870

HWBench recommends Radeon HD 6870

The Radeon HD 6870 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Core Configuration

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

Memory Configuration

Radeon HD 6870Radeon R7 250X
Memory TypeGDDR5vsGDDR5
Bus Width256 bitvs128 bit
Memory Speed1050 MHz
4200 MHz effective
vs1125 MHz
4500 MHz effective
Memory Size1024 Mbvs1024 Mb

Additional details

Radeon HD 6870Radeon R7 250X
TDP151 wattsvs80 watts
Release Date21 Oct 2010vs13 Feb 2014

Raw Performance comparison

Pixel Rate

  • Radeon HD 6870
    28.80 GP/s
  • Radeon R7 250X
    15.20 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6870
    50.40 GT/s
  • Radeon R7 250X
    38.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6870
    134.00 GB/s
  • Radeon R7 250X
    72.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6870
    2016.00 GFLOPs
  • Radeon R7 250X
    1216.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 6870
  • Radeon R7 250X

Points (higher is better)