Radeon HD 5450 vs Radeon HD 6870

Radeon HD 5450
Memory: 512Mb DDR2DESKTOP
Release date: 4 Feb 2010
Radeon HD 5450
Radeon HD 6870
Memory: 1024Mb GDDR5DESKTOP
Release date: 21 Oct 2010
Radeon HD 6870

Summary

Synthetic performance index

  • Radeon HD 5450
    100%
  • Radeon HD 6870
    1335%

Relative performance

Reasons to consider Radeon HD 5450

132 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6870 .
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon HD 6870

Around 1235% higher average synthetic performance.
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Radeon HD 6870

HWBench recommends Radeon HD 6870

The Radeon HD 6870 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 5450Radeon HD 6870
GPU NameCedar (Cedar PRO)vsBarts (Barts XT)
Fab Process40 nmvs40 nm
Die Size59 mm²vs255 mm²
Transistors292 millionvs1,700 million
Shaders80vs1120
Compute Units2vs14
Core clock650 MHzvs900 MHz
ROPs4vs32
TMUs8vs56

Memory Configuration

Radeon HD 5450Radeon HD 6870
Memory TypeDDR2vsGDDR5
Bus Width64 bitvs256 bit
Memory Speed400 MHz
800 MHz effective
vs1050 MHz
4200 MHz effective
Memory Size512 Mbvs1024 Mb

Additional details

Radeon HD 5450Radeon HD 6870
TDP19 wattsvs151 watts
Release Date4 Feb 2010vs21 Oct 2010

Raw Performance comparison

Pixel Rate

  • Radeon HD 5450
    2.60 GP/s
  • Radeon HD 6870
    28.80 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 5450
    5.20 GT/s
  • Radeon HD 6870
    50.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 5450
    6.40 GB/s
  • Radeon HD 6870
    134.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 5450
    104.00 GFLOPs
  • Radeon HD 6870
    2016.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 5450
    340
  • Radeon HD 6870
    4540

Points (higher is better)