HWBench.com

    Radeon HD 7670M vs Radeon HD 8670M

    Radeon HD 7670M
    Memory: 1024Mb DDR3MOBILE
    Release date: 17 Feb 2012
    Radeon HD 7670M
    Radeon HD 8670M
    Memory: 1024Mb DDR3MOBILE
    Release date: 1 Mar 2013
    Radeon HD 8670M

    Summary

    Synthetic performance index

    • Radeon HD 7670M
      100%
    • Radeon HD 8670M
      108%

    Relative performance

    Reasons to consider Radeon HD 7670M

    Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

    Reasons to consider Radeon HD 8670M

    This is a much newer product, it might have better long term support.
    Around 8% higher average synthetic performance.
    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    Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications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 8670M

    HWBench recommends Radeon HD 8670M

    The Radeon HD 8670M is the better performing card based on the synthetic benchmarks used (1 benchmarks).

    Specifications

    Core Configuration

    Radeon HD 7670MRadeon HD 8670M
    GPU NameThames (Thames XT)vsSun (Sun XT)
    Fab Process40 nmvs28 nm
    Die Size104 mm²vs77 mm²
    Transistors716 millionvs1,040 million
    Shaders480vs320
    Compute Units6vs5
    Core clock600 MHzvs925 MHz
    ROPs16vs8
    TMUs24vs20

    Memory Configuration

    Radeon HD 7670MRadeon HD 8670M
    Memory TypeDDR3vsDDR3
    Bus Width128 bitvs64 bit
    Memory Speed900 MHz
    1800 MHz effective    		vs1000 MHz
    2000 MHz effective
    Memory Size1024 Mbvs1024 Mb

    Additional details

    Radeon HD 7670MRadeon HD 8670M
    TDP20 wattsvs0 watts
    Release Date17 Feb 2012vs1 Mar 2013

    Raw Performance comparison

    Pixel Rate

    • Radeon HD 7670M
      9.60 GP/s
    • Radeon HD 8670M
      7.80 GP/s

    GigaPixels - higher is better

    Texel Rate

    • Radeon HD 7670M
      14.40 GT/s
    • Radeon HD 8670M
      19.50 GT/s

    GigaTexels - higher is better

    Memory bandwidth

    • Radeon HD 7670M
      28.80 GB/s
    • Radeon HD 8670M
      16.00 GB/s

    GB/s - higher is better

    Single precision performance

    • Radeon HD 7670M
      576.00 GFLOPs
    • Radeon HD 8670M
      624.00 GFLOPs

    GFLOPs - higher is better

    Synthetic benchmarks

    3DMark 11

    • Radeon HD 7670M
      1410
    • Radeon HD 8670M
      1530

    Points (higher is better)

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