Radeon HD 6490M vs Radeon HD 6450A

Radeon HD 6490M
Memory: 512Mb GDDR5MOBILE
Release date: 4 Jan 2011
Radeon HD 6490M
Radeon HD 6450A
Memory: 512Mb DDR3MOBILE
Release date: 7 Apr 2011
Radeon HD 6450A

Summary

Reasons to consider Radeon HD 6490M

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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon HD 6450A

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Radeon HD 6490M

HWBench recommends Radeon HD 6490M

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 6490MRadeon HD 6450A
GPU NameSeymour (Seymour XTX)vsCaicos ()
Fab Process40 nmvs40 nm
Die Size67 mm²vs67 mm²
Transistors370 millionvs370 million
Shaders160vs160
Compute Units2vs2
Core clock800 MHzvs625 MHz
ROPs4vs4
TMUs8vs8

Memory Configuration

Radeon HD 6490MRadeon HD 6450A
Memory TypeGDDR5vsDDR3
Bus Width64 bitvs64 bit
Memory Speed800 MHz
3200 MHz effective
vs533 MHz
1066 MHz effective
Memory Size512 Mbvs512 Mb

Additional details

Radeon HD 6490MRadeon HD 6450A
TDP0 wattsvs25 watts
Release Date4 Jan 2011vs7 Apr 2011

Raw Performance comparison

Pixel Rate

  • Radeon HD 6490M
    3.20 GP/s
  • Radeon HD 6450A
    2.50 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6490M
    6.40 GT/s
  • Radeon HD 6450A
    5.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6490M
    25.60 GB/s
  • Radeon HD 6450A
    8.53 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6490M
    256.00 GFLOPs
  • Radeon HD 6450A
    200.00 GFLOPs

GFLOPs - higher is better

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