Radeon HD 7690M XT vs Radeon HD 8670A

Radeon HD 7690M XT
Memory: 2048Mb GDDR5MOBILE
Release date: 7 Jan 2013
Radeon HD 7690M XT
Radeon HD 8670A
Memory: 1024Mb DDR3MOBILE
Release date: 2 Feb 2013
Radeon HD 8670A

Summary

Reasons to consider Radeon HD 7690M XT

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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications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 8670A

Supports Direct3D 12 Async Compute
Supports ReLive (allows game streaming/recording with minimum performance penalty)
Supports Mantle
Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Radeon HD 7690M XT

HWBench recommends Radeon HD 7690M XT

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 7690M XTRadeon HD 8670A
GPU NameThames (Thames XTX)vsMars (Mars XT)
Fab Process40 nmvs28 nm
Die Size104 mm²vs77 mm²
Transistors716 millionvs1,040 million
Shaders480vs384
Compute Units6vs6
Core clock725 MHzvs600 MHz
ROPs8vs8
TMUs24vs24

Memory Configuration

Radeon HD 7690M XTRadeon HD 8670A
Memory TypeGDDR5vsDDR3
Bus Width128 bitvs64 bit
Memory Speed900 MHz
3600 MHz effective
vs1000 MHz
2000 MHz effective
Memory Size2048 Mbvs1024 Mb

Additional details

Radeon HD 7690M XTRadeon HD 8670A
TDP25 wattsvs45 watts
Release Date7 Jan 2013vs2 Feb 2013

Raw Performance comparison

Pixel Rate

  • Radeon HD 7690M XT
    5.80 GP/s
  • Radeon HD 8670A
    4.80 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 7690M XT
    17.40 GT/s
  • Radeon HD 8670A
    14.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 7690M XT
    57.60 GB/s
  • Radeon HD 8670A
    16.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 7690M XT
    696.00 GFLOPs
  • Radeon HD 8670A
    460.80 GFLOPs

GFLOPs - higher is better

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