Radeon HD 6790 vs Radeon HD 6770 Green Edition

Radeon HD 6790
Memory: 1024Mb GDDR5DESKTOP
Release date: 4 Apr 2011
Radeon HD 6790
Radeon HD 6770 Green Edition
Memory: 2048Mb GDDR3DESKTOP
Release date: 19 Apr 2013
Radeon HD 6770 Green Edition
You are comparing OEM or variant versions of at least one VGA. Did you mean Radeon HD 6790 vs Radeon HD 6770 instead?

Summary

Reasons to consider Radeon HD 6790

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications.

Reasons to consider Radeon HD 6770 Green Edition

64 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6790 .
This is a much newer product, it might have better long term support.
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications.

No clear winner declared

We have no data to declare a winner at this time.


Specifications

Core Configuration

Radeon HD 6790Radeon HD 6770 Green Edition
GPU NameBarts (Barts LE)vsJuniper (Juniper PRO)
Fab Process40 nmvs40 nm
Die Size255 mm²vs166 mm²
Transistors1,700 millionvs1,040 million
Shaders800vs720
Compute Units10vs9
Core clock840 MHzvs700 MHz
ROPs16vs16
TMUs40vs36

Memory Configuration

Radeon HD 6790Radeon HD 6770 Green Edition
Memory TypeGDDR5vsGDDR3
Bus Width256 bitvs128 bit
Memory Speed1050 MHz
4200 MHz effective
vs667 MHz
1334 MHz effective
Memory Size1024 Mbvs2048 Mb

Additional details

Radeon HD 6790Radeon HD 6770 Green Edition
TDP150 wattsvs86 watts
Release Date4 Apr 2011vs19 Apr 2013

Raw Performance comparison

Pixel Rate

  • Radeon HD 6790
    13.40 GP/s
  • Radeon HD 6770 Green Edition
    11.20 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6790
    33.60 GT/s
  • Radeon HD 6770 Green Edition
    25.20 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6790
    134.00 GB/s
  • Radeon HD 6770 Green Edition
    21.30 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6790
    1344.00 GFLOPs
  • Radeon HD 6770 Green Edition
    1008.00 GFLOPs

GFLOPs - higher is better