Radeon HD 5870 vs Radeon R7 265

Radeon HD 5870
Memory: 1024Mb GDDR5DESKTOP
Release date: 23 Sep 2009
Radeon HD 5870
Radeon R7 265
Memory: 2048Mb GDDR5DESKTOP
Release date: 13 Feb 2014
Radeon R7 265

Summary

Synthetic performance index

  • Radeon HD 5870
    100%
  • Radeon R7 265
    160%

Relative performance

Reasons to consider Radeon HD 5870

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon R7 265

This is a much newer product, it might have better long term support.
Around 60% 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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications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 R7 265

HWBench recommends Radeon R7 265

The Radeon R7 265 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 5870Radeon R7 265
GPU NameCypress (Cypress XT)vsPitcairn (Pitcairn PRO)
Fab Process40 nmvs28 nm
Die Size334 mm²vs212 mm²
Transistors2,154 millionvs2,800 million
Shaders1600vs1024
Compute Units20vs16
Core clock850 MHzvs900 MHz
ROPs32vs32
TMUs80vs64

Memory Configuration

Radeon HD 5870Radeon R7 265
Memory TypeGDDR5vsGDDR5
Bus Width256 bitvs256 bit
Memory Speed1200 MHz
4800 MHz effective
vs1400 MHz
5600 MHz effective
Memory Size1024 Mbvs2048 Mb

Additional details

Radeon HD 5870Radeon R7 265
TDP188 wattsvs150 watts
Release Date23 Sep 2009vs13 Feb 2014

Raw Performance comparison

Pixel Rate

  • Radeon HD 5870
    27.20 GP/s
  • Radeon R7 265
    29.60 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 5870
    68.00 GT/s
  • Radeon R7 265
    59.20 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 5870
    154.00 GB/s
  • Radeon R7 265
    179.20 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 5870
    2720.00 GFLOPs
  • Radeon R7 265
    1894.40 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 5870
    4290
  • Radeon R7 265
    6900

Points (higher is better)