Radeon HD 6790 vs Radeon HD 6670

Radeon HD 6790
Memory: 1024Mb GDDR5DESKTOP
Release date: 4 Apr 2011
Radeon HD 6790
Radeon HD 6670
Memory: 1024Mb GDDR5DESKTOP
Release date: 19 Apr 2011
Radeon HD 6670

Summary

Synthetic performance index

  • Radeon HD 6790
    157%
  • Radeon HD 6670
    100%

Relative performance

Reasons to consider Radeon HD 6790

Around 57% 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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications.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 HD 6670

84 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6790 .
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications.

Radeon HD 6790

HWBench recommends Radeon HD 6790

The Radeon HD 6790 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 6790Radeon HD 6670
GPU NameBarts (Barts LE)vsTurks (Turks XT)
Fab Process40 nmvs40 nm
Die Size255 mm²vs118 mm²
Transistors1,700 millionvs716 million
Shaders800vs480
Compute Units10vs6
Core clock840 MHzvs800 MHz
ROPs16vs8
TMUs40vs24

Memory Configuration

Radeon HD 6790Radeon HD 6670
Memory TypeGDDR5vsGDDR5
Bus Width256 bitvs128 bit
Memory Speed1050 MHz
4200 MHz effective
vs1000 MHz
4000 MHz effective
Memory Size1024 Mbvs1024 Mb

Additional details

Radeon HD 6790Radeon HD 6670
TDP150 wattsvs66 watts
Release Date4 Apr 2011vs19 Apr 2011

Raw Performance comparison

Pixel Rate

  • Radeon HD 6790
    13.40 GP/s
  • Radeon HD 6670
    6.40 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6790
    33.60 GT/s
  • Radeon HD 6670
    19.20 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6790
    134.00 GB/s
  • Radeon HD 6670
    64.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6790
    1344.00 GFLOPs
  • Radeon HD 6670
    768.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 6790
    3090
  • Radeon HD 6670
    1960

Points (higher is better)