Radeon HD 4450 vs Radeon HD 6390

Radeon HD 4450
Memory: 512Mb DDR2DESKTOP
Release date: 18 Nov 2011
Radeon HD 4450
Radeon HD 6390
Memory: 1024Mb DDR2DESKTOP
Release date: 4 Jul 2011
Radeon HD 6390

Summary

Reasons to consider Radeon HD 4450

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon HD 6390

Higher theoretical gaming performance, based on specifications.
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Radeon HD 6390

HWBench recommends Radeon HD 6390

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 4450Radeon HD 6390
GPU NameRV710 ()vsRedwood (Redwood LE)
Fab Process55 nmvs40 nm
Die Size73 mm²vs104 mm²
Transistors242 millionvs627 million
Shaders80vs320
Compute Units1vs4
Core clock600 MHzvs550 MHz
ROPs4vs8
TMUs8vs16

Memory Configuration

Radeon HD 4450Radeon HD 6390
Memory TypeDDR2vsDDR2
Bus Width64 bitvs128 bit
Memory Speed400 MHz
800 MHz effective
vs500 MHz
1000 MHz effective
Memory Size512 Mbvs1024 Mb

Additional details

Radeon HD 4450Radeon HD 6390
TDP25 wattsvs39 watts
Release Date18 Nov 2011vs4 Jul 2011

Raw Performance comparison

Pixel Rate

  • Radeon HD 4450
    2.40 GP/s
  • Radeon HD 6390
    4.40 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 4450
    4.80 GT/s
  • Radeon HD 6390
    8.80 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 4450
    6.40 GB/s
  • Radeon HD 6390
    16.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 4450
    96.00 GFLOPs
  • Radeon HD 6390
    352.00 GFLOPs

GFLOPs - higher is better