Radeon HD 5770 vs Radeon HD 7870 GHz Edition

Radeon HD 5770
Memory: 1024Mb GDDR5DESKTOP
Release date: 13 Oct 2009
Radeon HD 5770
Radeon HD 7870 GHz Edition
Memory: 2048Mb GDDR5DESKTOP
Release date: 5 Mar 2012
Radeon HD 7870 GHz Edition

Summary

Synthetic performance index

  • Radeon HD 5770
    100%
  • Radeon HD 7870 GHz Edition
    298%

Relative performance

Reasons to consider Radeon HD 5770

67 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 7870 GHz Edition .
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon HD 7870 GHz Edition

This is a much newer product, it might have better long term support.
Around 198% higher average synthetic performance.
Supports Direct3D 12 Async Compute
Supports ReLive (allows game streaming/recording with minimum performance penalty)
Supports Mantle
Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Radeon HD 7870 GHz Edition

HWBench recommends Radeon HD 7870 GHz Edition

The Radeon HD 7870 GHz Edition is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 5770Radeon HD 7870 GHz Edition
GPU NameJuniper (Juniper XT)vsPitcairn (Pitcairn XT)
Fab Process40 nmvs28 nm
Die Size166 mm²vs212 mm²
Transistors1,040 millionvs2,800 million
Shaders800vs1280
Compute Units10vs20
Core clock850 MHzvs1000 MHz
ROPs16vs32
TMUs40vs80

Memory Configuration

Radeon HD 5770Radeon HD 7870 GHz Edition
Memory TypeGDDR5vsGDDR5
Bus Width128 bitvs256 bit
Memory Speed1200 MHz
4800 MHz effective
vs1200 MHz
4800 MHz effective
Memory Size1024 Mbvs2048 Mb

Additional details

Radeon HD 5770Radeon HD 7870 GHz Edition
TDP108 wattsvs175 watts
Release Date13 Oct 2009vs5 Mar 2012

Raw Performance comparison

Pixel Rate

  • Radeon HD 5770
    13.60 GP/s
  • Radeon HD 7870 GHz Edition
    32.00 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 5770
    34.00 GT/s
  • Radeon HD 7870 GHz Edition
    80.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 5770
    76.80 GB/s
  • Radeon HD 7870 GHz Edition
    154.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 5770
    1360.00 GFLOPs
  • Radeon HD 7870 GHz Edition
    2560.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 5770
    2780
  • Radeon HD 7870 GHz Edition
    8290

Points (higher is better)