Radeon HD 4870 X2 vs Radeon R9 280

Radeon HD 4870 X2
Memory: 1024Mb GDDR5DESKTOP
Release date: 12 Aug 2008
Radeon HD 4870 X2
Radeon R9 280
Memory: 3072Mb GDDR5DESKTOP
Release date: 4 Mar 2014
Radeon R9 280


Synthetic performance index

  • Radeon HD 4870 X2
  • Radeon R9 280

Relative performance

Reasons to consider Radeon HD 4870 X2

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications.

Reasons to consider Radeon R9 280

86 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.
Around 134% higher average synthetic performance.
Supports Direct3D 12 Async Compute.
Supports ReLive (allows game streaming/recording with minimum performance penalty).
Supports Mantle.

Radeon R9 280

HWBench recommends Radeon R9 280

The Radeon R9 280 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Core Configuration

Radeon HD 4870 X2Radeon R9 280
GPU NameR700 (R700 XT)vsTahiti (Tahiti PRO3)
Fab Process55 nmvs28 nm
Die Size256 mm²vs352 mm²
Transistors956 millionvs4,313 million
Compute Units10vs28
Core clock700 MHzvs827 MHz

Memory Configuration

Radeon HD 4870 X2Radeon R9 280
Memory TypeGDDR5vsGDDR5
Bus Width256 bit x2vs384 bit
Memory Speed900 MHz
3600 MHz effective
vs1250 MHz
5000 MHz effective
Memory Size1024 Mbvs3072 Mb

Additional details

Radeon HD 4870 X2Radeon R9 280
TDP286 wattsvs200 watts
Release Date12 Aug 2008vs4 Mar 2014

Raw Performance comparison

Pixel Rate

  • Radeon HD 4870 X2
    22.40 GP/s
  • Radeon R9 280
    29.86 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 4870 X2
    56.00 GT/s
  • Radeon R9 280
    104.50 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 4870 X2
    230.00 GB/s
  • Radeon R9 280
    240.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 4870 X2
    2240.00 GFLOPs
  • Radeon R9 280
    3344.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 4870 X2
  • Radeon R9 280

Points (higher is better)