Radeon HD 6770 vs Radeon HD 8490 OEM

Radeon HD 6770
Memory: 1024Mb GDDR5DESKTOP
Release date: 21 Jan 2011
Radeon HD 6770
Radeon HD 8490 OEM
Memory: 1024Mb DDR3DESKTOP
Release date: 23 Jul 2013
Radeon HD 8490 OEM

Summary

Reasons to consider Radeon HD 6770

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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications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 8490 OEM

73 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6770 .
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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Radeon HD 6770

HWBench recommends Radeon HD 6770

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 6770Radeon HD 8490 OEM
GPU NameJuniper (Juniper XT)vsCaicos (Caicos XTX)
Fab Process40 nmvs40 nm
Die Size166 mm²vs67 mm²
Transistors1,040 millionvs370 million
Shaders800vs160
Compute Units10vs2
Core clock850 MHzvs875 MHz
ROPs16vs4
TMUs40vs8

Memory Configuration

Radeon HD 6770Radeon HD 8490 OEM
Memory TypeGDDR5vsDDR3
Bus Width128 bitvs64 bit
Memory Speed1200 MHz
4800 MHz effective
vs900 MHz
1800 MHz effective
Memory Size1024 Mbvs1024 Mb

Additional details

Radeon HD 6770Radeon HD 8490 OEM
TDP108 wattsvs35 watts
Release Date21 Jan 2011vs23 Jul 2013

Raw Performance comparison

Pixel Rate

  • Radeon HD 6770
    13.60 GP/s
  • Radeon HD 8490 OEM
    3.50 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6770
    34.00 GT/s
  • Radeon HD 8490 OEM
    7.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6770
    76.80 GB/s
  • Radeon HD 8490 OEM
    14.40 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6770
    1360.00 GFLOPs
  • Radeon HD 8490 OEM
    280.00 GFLOPs

GFLOPs - higher is better