HWBench.com

    GeForce GT 755M vs Radeon HD 6990M

    GeForce GT 755M
    Memory: 2048Mb GDDR5MOBILE
    Release date: 25 Jun 2013
    GeForce GT 755M
    Radeon HD 6990M
    Memory: 2048Mb GDDR5MOBILE
    Release date: 12 Jul 2011
    Radeon HD 6990M

    Summary

    Synthetic performance index

    • GeForce GT 755M
      100%
    • Radeon HD 6990M
      113%

    Relative performance

    Reasons to consider GeForce GT 755M

    50 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6990M .
    This is a much newer product, it might have better long term support.
    Supports PhysX
    Supports G-Sync
    Supports ShadowPlay (allows game streaming/recording with minimum performance penalty)
    Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

    Reasons to consider Radeon HD 6990M

    Around 13% higher average synthetic performance.
    Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications
    Radeon HD 6990M

    HWBench recommends Radeon HD 6990M

    The Radeon HD 6990M is the better performing card based on the synthetic benchmarks used (1 benchmarks).

    Specifications

    Core Configuration

    GeForce GT 755MRadeon HD 6990M
    GPU NameGK107 (GT 755M)vsBlackcomb (Blackcomb XTX)
    Fab Process28 nmvs40 nm
    Die Size118 mm²vs212 mm²
    Transistors1,270 millionvs1,700 million
    Shaders384vs1120
    Compute Units2vs14
    Core clock980 MHzvs715 MHz
    ROPs16vs32
    TMUs32vs56

    Memory Configuration

    GeForce GT 755MRadeon HD 6990M
    Memory TypeGDDR5vsGDDR5
    Bus Width128 bitvs256 bit
    Memory Speed1350 MHz
    5400 MHz effective    		vs900 MHz
    3600 MHz effective
    Memory Size2048 Mbvs2048 Mb

    Additional details

    GeForce GT 755MRadeon HD 6990M
    TDP50 wattsvs100 watts
    Release Date25 Jun 2013vs12 Jul 2011

    Raw Performance comparison

    Pixel Rate

    • GeForce GT 755M
      7.84 GP/s
    • Radeon HD 6990M
      22.88 GP/s

    GigaPixels - higher is better

    Texel Rate

    • GeForce GT 755M
      31.36 GT/s
    • Radeon HD 6990M
      40.00 GT/s

    GigaTexels - higher is better

    Memory bandwidth

    • GeForce GT 755M
      86.40 GB/s
    • Radeon HD 6990M
      115.20 GB/s

    GB/s - higher is better

    Single precision performance

    • GeForce GT 755M
      752.60 GFLOPs
    • Radeon HD 6990M
      1601.60 GFLOPs

    GFLOPs - higher is better

    Synthetic benchmarks

    3DMark 11

    • GeForce GT 755M
      2800
    • Radeon HD 6990M
      3190

    Points (higher is better)

    Similar comparisons