Radeon HD 5870 vs Radeon HD 7990

Radeon HD 5870
Memory: 1024Mb GDDR5DESKTOP
Release date: 23 Sep 2009
Radeon HD 5870
Radeon HD 7990
Memory: 3072Mb GDDR5DESKTOP
Release date: 24 Apr 2013
Radeon HD 7990

Summary

Synthetic performance index

  • Radeon HD 5870
    100%
  • Radeon HD 7990
    431%

Relative performance

Reasons to consider Radeon HD 5870

187 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 7990 .
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon HD 7990

This is a much newer product, it might have better long term support.
Around 331% 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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications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 7990

HWBench recommends Radeon HD 7990

The Radeon HD 7990 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 5870Radeon HD 7990
GPU NameCypress (Cypress XT)vsMalta ()
Fab Process40 nmvs28 nm
Die Size334 mm²vs365 mm²
Transistors2,154 millionvs4,313 million
Shaders1600vs2048
Compute Units20vs32
Core clock850 MHzvs950 MHz
ROPs32vs32
TMUs80vs128

Memory Configuration

Radeon HD 5870Radeon HD 7990
Memory TypeGDDR5vsGDDR5
Bus Width256 bitvs384 bit x2
Memory Speed1200 MHz
4800 MHz effective
vs1500 MHz
6000 MHz effective
Memory Size1024 Mbvs3072 Mb

Additional details

Radeon HD 5870Radeon HD 7990
TDP188 wattsvs375 watts
Release Date23 Sep 2009vs24 Apr 2013

Raw Performance comparison

Pixel Rate

  • Radeon HD 5870
    27.20 GP/s
  • Radeon HD 7990
    60.80 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 5870
    68.00 GT/s
  • Radeon HD 7990
    244.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 5870
    154.00 GB/s
  • Radeon HD 7990
    576.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 5870
    2720.00 GFLOPs
  • Radeon HD 7990
    7782.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 5870
    4290
  • Radeon HD 7990
    18530

Points (higher is better)