Radeon HD 6670 vs Radeon R7 250X

Radeon HD 6670
Memory: 1024Mb GDDR5DESKTOP
Release date: 19 Apr 2011
Radeon HD 6670
Radeon R7 250X
Memory: 1024Mb GDDR5DESKTOP
Release date: 13 Feb 2014
Radeon R7 250X

Summary

Synthetic performance index

  • Radeon HD 6670
    100%
  • Radeon R7 250X
    205%

Relative performance

Reasons to consider Radeon HD 6670

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon R7 250X

This is a much newer product, it might have better long term support.
Around 105% higher average synthetic performance.
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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications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 R7 250X

HWBench recommends Radeon R7 250X

The Radeon R7 250X is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 6670Radeon R7 250X
GPU NameTurks (Turks XT)vsCape Verde (Cape Verde XT)
Fab Process40 nmvs28 nm
Die Size118 mm²vs123 mm²
Transistors716 millionvs1,500 million
Shaders480vs640
Compute Units6vs10
Core clock800 MHzvs950 MHz
ROPs8vs16
TMUs24vs40

Memory Configuration

Radeon HD 6670Radeon R7 250X
Memory TypeGDDR5vsGDDR5
Bus Width128 bitvs128 bit
Memory Speed1000 MHz
4000 MHz effective
vs1125 MHz
4500 MHz effective
Memory Size1024 Mbvs1024 Mb

Additional details

Radeon HD 6670Radeon R7 250X
TDP66 wattsvs80 watts
Release Date19 Apr 2011vs13 Feb 2014

Raw Performance comparison

Pixel Rate

  • Radeon HD 6670
    6.40 GP/s
  • Radeon R7 250X
    15.20 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6670
    19.20 GT/s
  • Radeon R7 250X
    38.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6670
    64.00 GB/s
  • Radeon R7 250X
    72.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6670
    768.00 GFLOPs
  • Radeon R7 250X
    1216.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 6670
    1960
  • Radeon R7 250X
    4020

Points (higher is better)