Radeon HD 2600 XT Mac Edition vs GeForce GTX 660 OEM

Radeon HD 2600 XT Mac Edition
Memory: 256Mb GDDR3DESKTOP
Release date: 21 Feb 2008
Radeon HD 2600 XT Mac Edition
GeForce GTX 660 OEM
Memory: 1536Mb GDDR5DESKTOP
Release date: 22 Aug 2012
GeForce GTX 660 OEM
You are comparing OEM or variant versions of at least one VGA. Did you mean Radeon HD 2600 XT Mac Edition vs GeForce GTX 660 instead?

Summary

Reasons to consider Radeon HD 2600 XT Mac Edition

85 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX 660 OEM .
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider GeForce GTX 660 OEM

This is a much newer product, it might have better long term support.
Higher theoretical gaming performance, based on specifications.
Supports PhysX
Supports G-Sync
Supports ShadowPlay (allows game streaming/recording with minimum performance penalty)
Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

GeForce GTX 660 OEM

HWBench recommends GeForce GTX 660 OEM

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 2600 XT Mac EditionGeForce GTX 660 OEM
GPU NameRV630 ()vsGK104 (GK104-200-KD-A2)
Fab Process65 nmvs28 nm
Die Size153 mm²vs294 mm²
Transistors390 millionvs3,540 million
Shaders120vs1152
Compute Units3vs6
Core clock700 MHzvs823 MHz
ROPs4vs24
TMUs8vs96

Memory Configuration

Radeon HD 2600 XT Mac EditionGeForce GTX 660 OEM
Memory TypeGDDR3vsGDDR5
Bus Width128 bitvs192 bit
Memory Speed800 MHz
1600 MHz effective
vs1400 MHz
5600 MHz effective
Memory Size256 Mbvs1536 Mb

Additional details

Radeon HD 2600 XT Mac EditionGeForce GTX 660 OEM
TDP45 wattsvs130 watts
Release Date21 Feb 2008vs22 Aug 2012

Raw Performance comparison

Pixel Rate

  • Radeon HD 2600 XT Mac Edition
    2.80 GP/s
  • GeForce GTX 660 OEM
    19.80 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 2600 XT Mac Edition
    5.60 GT/s
  • GeForce GTX 660 OEM
    79.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 2600 XT Mac Edition
    25.60 GB/s
  • GeForce GTX 660 OEM
    134.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 2600 XT Mac Edition
    168.00 GFLOPs
  • GeForce GTX 660 OEM
    1896.00 GFLOPs

GFLOPs - higher is better