Radeon HD 6870M vs Radeon HD 7690M XT

Radeon HD 6870M
Memory: 1024Mb GDDR5MOBILE
Release date: 4 Jan 2011
Radeon HD 6870M
Radeon HD 7690M XT
Memory: 2048Mb GDDR5MOBILE
Release date: 7 Jan 2013
Radeon HD 7690M XT

Summary

Reasons to consider Radeon HD 6870M

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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications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 7690M XT

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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications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 6870M

HWBench recommends Radeon HD 6870M

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 6870MRadeon HD 7690M XT
GPU NameGranville (Granville XT)vsThames (Thames XTX)
Fab Process40 nmvs40 nm
Die Size166 mm²vs104 mm²
Transistors1,040 millionvs716 million
Shaders800vs480
Compute Units10vs6
Core clock675 MHzvs725 MHz
ROPs16vs8
TMUs40vs24

Memory Configuration

Radeon HD 6870MRadeon HD 7690M XT
Memory TypeGDDR5vsGDDR5
Bus Width128 bitvs128 bit
Memory Speed1000 MHz
4000 MHz effective
vs900 MHz
3600 MHz effective
Memory Size1024 Mbvs2048 Mb

Additional details

Radeon HD 6870MRadeon HD 7690M XT
TDP50 wattsvs25 watts
Release Date4 Jan 2011vs7 Jan 2013

Raw Performance comparison

Pixel Rate

  • Radeon HD 6870M
    10.80 GP/s
  • Radeon HD 7690M XT
    5.80 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6870M
    27.00 GT/s
  • Radeon HD 7690M XT
    17.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6870M
    64.00 GB/s
  • Radeon HD 7690M XT
    57.60 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6870M
    1080.00 GFLOPs
  • Radeon HD 7690M XT
    696.00 GFLOPs

GFLOPs - higher is better

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