Radeon HD 3830 vs Radeon HD 6770

Radeon HD 3830
Memory: 256Mb GDDR3DESKTOP
Release date: 1 Apr 2008
Radeon HD 3830
Radeon HD 6770
Memory: 1024Mb GDDR5DESKTOP
Release date: 21 Jan 2011
Radeon HD 6770

Summary

Reasons to consider Radeon HD 3830

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon HD 6770

This is a much newer product, it might have better long term support.
Higher theoretical gaming performance, based on specifications.
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Radeon HD 6770

HWBench recommends Radeon HD 6770

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 3830Radeon HD 6770
GPU NameRV670 (RV670 PRO)vsJuniper (Juniper XT)
Fab Process55 nmvs40 nm
Die Size192 mm²vs166 mm²
Transistors666 millionvs1,040 million
Shaders320vs800
Compute Units4vs10
Core clock668 MHzvs850 MHz
ROPs16vs16
TMUs16vs40

Memory Configuration

Radeon HD 3830Radeon HD 6770
Memory TypeGDDR3vsGDDR5
Bus Width128 bitvs128 bit
Memory Speed828 MHz
1656 MHz effective
vs1200 MHz
4800 MHz effective
Memory Size256 Mbvs1024 Mb

Additional details

Radeon HD 3830Radeon HD 6770
TDP75 wattsvs108 watts
Release Date1 Apr 2008vs21 Jan 2011

Raw Performance comparison

Pixel Rate

  • Radeon HD 3830
    10.70 GP/s
  • Radeon HD 6770
    13.60 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 3830
    10.70 GT/s
  • Radeon HD 6770
    34.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 3830
    26.50 GB/s
  • Radeon HD 6770
    76.80 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 3830
    427.50 GFLOPs
  • Radeon HD 6770
    1360.00 GFLOPs

GFLOPs - higher is better