Radeon HD 4870 X2 vs Radeon HD 5770

Radeon HD 4870 X2
Memory: 1024Mb GDDR5DESKTOP
Release date: 12 Aug 2008
Radeon HD 4870 X2
Radeon HD 5770
Memory: 1024Mb GDDR5DESKTOP
Release date: 13 Oct 2009
Radeon HD 5770

Summary

Synthetic performance index

  • Radeon HD 4870 X2
    150%
  • Radeon HD 5770
    100%

Relative performance

Reasons to consider Radeon HD 4870 X2

Around 50% 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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications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 5770

178 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 4870 X2 .
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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications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 4870 X2

HWBench recommends Radeon HD 4870 X2

The Radeon HD 4870 X2 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 4870 X2Radeon HD 5770
GPU NameR700 (R700 XT)vsJuniper (Juniper XT)
Fab Process55 nmvs40 nm
Die Size256 mm²vs166 mm²
Transistors956 millionvs1,040 million
Shaders800vs800
Compute Units10vs10
Core clock700 MHzvs850 MHz
ROPs16vs16
TMUs40vs40

Memory Configuration

Radeon HD 4870 X2Radeon HD 5770
Memory TypeGDDR5vsGDDR5
Bus Width256 bit x2vs128 bit
Memory Speed900 MHz
3600 MHz effective
vs1200 MHz
4800 MHz effective
Memory Size1024 Mbvs1024 Mb

Additional details

Radeon HD 4870 X2Radeon HD 5770
TDP286 wattsvs108 watts
Release Date12 Aug 2008vs13 Oct 2009

Raw Performance comparison

Pixel Rate

  • Radeon HD 4870 X2
    22.40 GP/s
  • Radeon HD 5770
    13.60 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 4870 X2
    56.00 GT/s
  • Radeon HD 5770
    34.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 4870 X2
    230.00 GB/s
  • Radeon HD 5770
    76.80 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 4870 X2
    2240.00 GFLOPs
  • Radeon HD 5770
    1360.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 4870 X2
    4170
  • Radeon HD 5770
    2780

Points (higher is better)