Radeon HD 5670 vs Radeon HD 6450

Radeon HD 5670
Memory: 1024Mb GDDR5DESKTOP
Release date: 14 Jan 2010
Radeon HD 5670
Radeon HD 6450
Memory: 512Mb GDDR5DESKTOP
Release date: 7 Apr 2011
Radeon HD 6450

Summary

Synthetic performance index

  • Radeon HD 5670
    284%
  • Radeon HD 6450
    100%

Relative performance

Reasons to consider Radeon HD 5670

Around 184% 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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications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 6450

46 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 5670 .
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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications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 5670

HWBench recommends Radeon HD 5670

The Radeon HD 5670 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 5670Radeon HD 6450
GPU NameRedwood (Redwood XT)vsCaicos (Caicos PRO)
Fab Process40 nmvs40 nm
Die Size104 mm²vs67 mm²
Transistors627 millionvs370 million
Shaders400vs160
Compute Units5vs2
Core clock775 MHzvs625 MHz
ROPs8vs4
TMUs20vs8

Memory Configuration

Radeon HD 5670Radeon HD 6450
Memory TypeGDDR5vsGDDR5
Bus Width128 bitvs64 bit
Memory Speed1000 MHz
4000 MHz effective
vs800 MHz
3200 MHz effective
Memory Size1024 Mbvs512 Mb

Additional details

Radeon HD 5670Radeon HD 6450
TDP64 wattsvs18 watts
Release Date14 Jan 2010vs7 Apr 2011

Raw Performance comparison

Pixel Rate

  • Radeon HD 5670
    6.20 GP/s
  • Radeon HD 6450
    2.50 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 5670
    15.50 GT/s
  • Radeon HD 6450
    5.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 5670
    64.00 GB/s
  • Radeon HD 6450
    25.60 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 5670
    620.00 GFLOPs
  • Radeon HD 6450
    200.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 5670
    1480
  • Radeon HD 6450
    520

Points (higher is better)