Radeon HD 3690 vs Radeon HD 6490

Radeon HD 3690
Memory: 256Mb GDDR3DESKTOP
Release date: 30 Mar 2008
Radeon HD 3690
Radeon HD 6490
Memory: 1024Mb DDR2DESKTOP
Release date: 4 Jul 2011
Radeon HD 6490

Summary

Reasons to consider Radeon HD 3690

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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon HD 6490

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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Radeon HD 3690

HWBench recommends Radeon HD 3690

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 3690Radeon HD 6490
GPU NameRV670 (RV670 PRO)vsRedwood (Redwood LE)
Fab Process55 nmvs40 nm
Die Size192 mm²vs104 mm²
Transistors666 millionvs627 million
Shaders320vs320
Compute Units4vs4
Core clock670 MHzvs550 MHz
ROPs16vs8
TMUs16vs16

Memory Configuration

Radeon HD 3690Radeon HD 6490
Memory TypeGDDR3vsDDR2
Bus Width128 bitvs128 bit
Memory Speed830 MHz
1660 MHz effective
vs500 MHz
1000 MHz effective
Memory Size256 Mbvs1024 Mb

Additional details

Radeon HD 3690Radeon HD 6490
TDP75 wattsvs39 watts
Release Date30 Mar 2008vs4 Jul 2011

Raw Performance comparison

Pixel Rate

  • Radeon HD 3690
    10.70 GP/s
  • Radeon HD 6490
    4.40 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 3690
    10.70 GT/s
  • Radeon HD 6490
    8.80 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 3690
    26.60 GB/s
  • Radeon HD 6490
    16.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 3690
    428.80 GFLOPs
  • Radeon HD 6490
    352.00 GFLOPs

GFLOPs - higher is better