Radeon HD 4670 vs Radeon HD 7950 Mac Edition

Radeon HD 4670
Memory: 512Mb GDDR3DESKTOP
Release date: 10 Sep 2008
Radeon HD 4670
Radeon HD 7950 Mac Edition
Memory: 3072Mb GDDR5DESKTOP
Release date: 7 Mar 2013
Radeon HD 7950 Mac Edition

Summary

Reasons to consider Radeon HD 4670

141 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 7950 Mac Edition .
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon HD 7950 Mac Edition

This is a much newer product, it might have better long term support.
Higher theoretical gaming performance, based on specifications.
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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications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 7950 Mac Edition

HWBench recommends Radeon HD 7950 Mac Edition

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 4670Radeon HD 7950 Mac Edition
GPU NameRV730 (RV730 XT)vsTahiti (Tahiti PRO)
Fab Process55 nmvs28 nm
Die Size146 mm²vs352 mm²
Transistors514 millionvs4,313 million
Shaders320vs1792
Compute Units4vs28
Core clock750 MHzvs800 MHz
ROPs8vs32
TMUs32vs112

Memory Configuration

Radeon HD 4670Radeon HD 7950 Mac Edition
Memory TypeGDDR3vsGDDR5
Bus Width128 bitvs384 bit
Memory Speed800 MHz
1600 MHz effective
vs1250 MHz
5000 MHz effective
Memory Size512 Mbvs3072 Mb

Additional details

Radeon HD 4670Radeon HD 7950 Mac Edition
TDP59 wattsvs200 watts
Release Date10 Sep 2008vs7 Mar 2013

Raw Performance comparison

Pixel Rate

  • Radeon HD 4670
    6.00 GP/s
  • Radeon HD 7950 Mac Edition
    25.60 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 4670
    24.00 GT/s
  • Radeon HD 7950 Mac Edition
    89.60 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 4670
    25.60 GB/s
  • Radeon HD 7950 Mac Edition
    240.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 4670
    480.00 GFLOPs
  • Radeon HD 7950 Mac Edition
    2867.00 GFLOPs

GFLOPs - higher is better