Radeon RX 580 vs Radeon HD 7950

Radeon RX 580
Memory: 8192Mb GDDR5DESKTOP
Release date: 1 Apr 2017
Radeon RX 580
Radeon HD 7950
Memory: 3072Mb GDDR5DESKTOP
Release date: 31 Jan 2012
Radeon HD 7950

Summary

Gaming performance index

  • Radeon RX 580
    177%
  • Radeon HD 7950
    100%

Relative performance

Reasons to consider Radeon RX 580

77% higher gaming performance.
50 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 7950 .
This is a much newer product, it might have better long term support.
Supports Direct3D 12 Async Compute
Supports FreeSync
Supports ReLive (allows game streaming/recording with minimum performance penalty)
Supports TrueAudio
Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Reasons to consider Radeon HD 7950

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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications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 RX 580

HWBench recommends Radeon RX 580

The Radeon RX 580 is the better performing card based on the game benchmark suite used (2 combinations of games and resolutions).


Specifications

Core Configuration

Radeon RX 580Radeon HD 7950
GPU NameEllesmere (Ellesmere XT)vsTahiti (Tahiti PRO)
Fab Process14 nmvs28 nm
Die Size232 mm²vs352 mm²
Transistors5,700 millionvs4,313 million
Shaders2304vs1792
Compute Units36vs28
Core clock1120 MHzvs800 MHz
ROPs32vs32
TMUs144vs112

Memory Configuration

Radeon RX 580Radeon HD 7950
Memory TypeGDDR5vsGDDR5
Bus Width256 bitvs384 bit
Memory Speed2000 MHz
8000 MHz effective
vs1250 MHz
5000 MHz effective
Memory Size8192 Mbvs3072 Mb

Additional details

Radeon RX 580Radeon HD 7950
TDP150 wattsvs200 watts
Release Date1 Apr 2017vs31 Jan 2012

Raw Performance comparison

Pixel Rate

  • Radeon RX 580
    40.50 GP/s
  • Radeon HD 7950
    25.60 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon RX 580
    182.30 GT/s
  • Radeon HD 7950
    89.60 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon RX 580
    256.00 GB/s
  • Radeon HD 7950
    240.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon RX 580
    5834.00 GFLOPs
  • Radeon HD 7950
    2867.00 GFLOPs

GFLOPs - higher is better

Game benchmarks

Grand Theft Auto V

DX11, Max Details, 16:1 AF, 2xMSAA

  • Radeon RX 580
    89
  • Radeon HD 7950
    49

FPS (higher is better)

Grand Theft Auto V

DX11, Max Details, 16:1 AF, 2xMSAA

  • Radeon RX 580
    61
  • Radeon HD 7950
    35

FPS (higher is better)