Radeon HD 6870 vs Radeon R7 250

Radeon HD 6870
Memory: 1024Mb GDDR5DESKTOP
Release date: 21 Oct 2010
Radeon HD 6870
Radeon R7 250
Memory: 1024Mb GDDR5DESKTOP
Release date: 8 Oct 2013
Radeon R7 250

Summary

Synthetic performance index

  • Radeon HD 6870
    165%
  • Radeon R7 250
    100%

Relative performance

Reasons to consider Radeon HD 6870

Around 65% 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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications.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 250

86 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).


Specifications

Core Configuration

Radeon HD 6870Radeon R7 250
GPU NameBarts (Barts XT)vsOland (Oland XT)
Fab Process40 nmvs28 nm
Die Size255 mm²vs90 mm²
Transistors1,700 millionvs1,040 million
Shaders1120vs384
Compute Units14vs6
Core clock900 MHzvs1000 MHz
ROPs32vs8
TMUs56vs24

Memory Configuration

Radeon HD 6870Radeon R7 250
Memory TypeGDDR5vsGDDR5
Bus Width256 bitvs128 bit
Memory Speed1050 MHz
4200 MHz effective
vs1150 MHz
4600 MHz effective
Memory Size1024 Mbvs1024 Mb

Additional details

Radeon HD 6870Radeon R7 250
TDP151 wattsvs65 watts
Release Date21 Oct 2010vs8 Oct 2013

Raw Performance comparison

Pixel Rate

  • Radeon HD 6870
    28.80 GP/s
  • Radeon R7 250
    8.00 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6870
    50.40 GT/s
  • Radeon R7 250
    24.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6870
    134.00 GB/s
  • Radeon R7 250
    73.60 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6870
    2016.00 GFLOPs
  • Radeon R7 250
    768.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 6870
    4540
  • Radeon R7 250
    2740

Points (higher is better)