Radeon HD 4580 vs GeForce GTX 275

Radeon HD 4580
Memory: 512Mb GDDR3DESKTOP
Release date: 20 Nov 2011
Radeon HD 4580
GeForce GTX 275
Memory: 896Mb GDDR3DESKTOP
Release date: 15 Jan 2009
GeForce GTX 275

Summary

Reasons to consider Radeon HD 4580

154 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX 275 .
This is a much newer product, it might have better long term support.
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider GeForce GTX 275

Higher theoretical gaming performance, based on specifications.
Based on an outdated architecture (Nvidia Tesla), there are no performance optimizations for current games and applications
PhysX support, however PhysX performance on newest games may be poor

GeForce GTX 275

HWBench recommends GeForce GTX 275

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 4580GeForce GTX 275
GPU NameRV635 (RV635 PRO)vsGT200B (G200-105-B3)
Fab Process55 nmvs55 nm
Die Size135 mm²vs470 mm²
Transistors378 millionvs1,400 million
Shaders120vs240
Compute Units3vs10
Core clock796 MHzvs633 MHz
ROPs4vs28
TMUs8vs80

Memory Configuration

Radeon HD 4580GeForce GTX 275
Memory TypeGDDR3vsGDDR3
Bus Width128 bitvs448 bit
Memory Speed693 MHz
1386 MHz effective
vs1134 MHz
2268 MHz effective
Memory Size512 Mbvs896 Mb

Additional details

Radeon HD 4580GeForce GTX 275
TDP65 wattsvs219 watts
Release Date20 Nov 2011vs15 Jan 2009

Raw Performance comparison

Pixel Rate

  • Radeon HD 4580
    3.18 GP/s
  • GeForce GTX 275
    17.70 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 4580
    6.37 GT/s
  • GeForce GTX 275
    50.60 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 4580
    22.20 GB/s
  • GeForce GTX 275
    127.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 4580
    191.00 GFLOPs
  • GeForce GTX 275
    673.90 GFLOPs

GFLOPs - higher is better