Radeon RX 580 vs Radeon HD 7950

Radeon RX 580
Memory: 8192Mb GDDR5 DESKTOP
Release date: 1 Apr 2017
Radeon RX 580
Radeon HD 7950
Memory: 3072Mb GDDR5 DESKTOP
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.

Reasons to consider Radeon HD 7950

Supports Direct3D 12 Async Compute.
Supports ReLive (allows game streaming/recording with minimum performance penalty).
Supports Mantle.

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 580 Radeon HD 7950
GPU Name Ellesmere (Ellesmere XT) vs Tahiti (Tahiti PRO)
Fab Process 14 nm vs 28 nm
Die Size 232 mm² vs 352 mm²
Transistors 5,700 million vs 4,313 million
Shaders 2304 vs 1792
Compute Units 36 vs 28
Core clock 1120 MHz vs 800 MHz
ROPs 32 vs 32
TMUs 144 vs 112

Memory Configuration

Radeon RX 580 Radeon HD 7950
Memory Type GDDR5 vs GDDR5
Bus Width 256 bit vs 384 bit
Memory Speed 2000 MHz
8000 MHz effective
vs 1250 MHz
5000 MHz effective
Memory Size 8192 Mb vs 3072 Mb

Additional details

Radeon RX 580 Radeon HD 7950
TDP 150 watts vs 200 watts
Release Date 1 Apr 2017 vs 31 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)