HWBench.com

    GeForce GT 640 vs GeForce GTX 650 Ti Boost

    GeForce GT 640
    Memory: 2048Mb DDR3DESKTOP
    Release date: 5 Jun 2012
    GeForce GT 640
    GeForce GTX 650 Ti Boost
    Memory: 2048Mb GDDR5DESKTOP
    Release date: 26 Mar 2013
    GeForce GTX 650 Ti Boost

    Summary

    Synthetic performance index

    • GeForce GT 640
      100%
    • GeForce GTX 650 Ti Boost
      264%

    Relative performance

    Reasons to consider GeForce GT 640

    69 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX 650 Ti Boost .
    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    Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 GeForce GTX 650 Ti Boost

    This is a much newer product, it might have better long term support.
    Around 164% higher average synthetic performance.
    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    Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications
    GeForce GTX 650 Ti Boost

    HWBench recommends GeForce GTX 650 Ti Boost

    The GeForce GTX 650 Ti Boost is the better performing card based on the synthetic benchmarks used (1 benchmarks).

    Specifications

    Core Configuration

    GeForce GT 640GeForce GTX 650 Ti Boost
    GPU NameGK107 (GK107-300-A2)vsGK106 (GK106-240-A1)
    Fab Process28 nmvs28 nm
    Die Size118 mm²vs221 mm²
    Transistors1,270 millionvs2,540 million
    Shaders384vs768
    Compute Units2vs4
    Core clock902 MHzvs980 MHz
    ROPs16vs24
    TMUs32vs64

    Memory Configuration

    GeForce GT 640GeForce GTX 650 Ti Boost
    Memory TypeDDR3vsGDDR5
    Bus Width128 bitvs192 bit
    Memory Speed891 MHz
    1782 MHz effective    		vs1502 MHz
    6008 MHz effective
    Memory Size2048 Mbvs2048 Mb

    Additional details

    GeForce GT 640GeForce GTX 650 Ti Boost
    TDP65 wattsvs134 watts
    Release Date5 Jun 2012vs26 Mar 2013

    Raw Performance comparison

    Pixel Rate

    • GeForce GT 640
      7.22 GP/s
    • GeForce GTX 650 Ti Boost
      15.70 GP/s

    GigaPixels - higher is better

    Texel Rate

    • GeForce GT 640
      28.90 GT/s
    • GeForce GTX 650 Ti Boost
      62.70 GT/s

    GigaTexels - higher is better

    Memory bandwidth

    • GeForce GT 640
      28.50 GB/s
    • GeForce GTX 650 Ti Boost
      144.00 GB/s

    GB/s - higher is better

    Single precision performance

    • GeForce GT 640
      692.70 GFLOPs
    • GeForce GTX 650 Ti Boost
      1505.00 GFLOPs

    GFLOPs - higher is better

    Synthetic benchmarks

    3DMark 11

    • GeForce GT 640
      2190
    • GeForce GTX 650 Ti Boost
      5800

    Points (higher is better)

    Similar comparisons

    GeForce GT 640VS GeForce GT 730 GDDR5
    GeForce GT 640GeForce GT 730 GDDR5
    GeForce GT 640VS Radeon R7 Graphics IGP (APU A10-7850K)
    GeForce GT 640Radeon R7 Graphics IGP (APU A10-7850K)
    GeForce GTX 650 Ti BoostVS Radeon RX Vega 11
    GeForce GTX 650 Ti BoostRadeon RX Vega 11
    GeForce GTX 650 Ti BoostVS Radeon Vega 8
    GeForce GTX 650 Ti BoostRadeon Vega 8
    Radeon R9 370VS Radeon R9 270
    Radeon R9 370Radeon R9 270
    Radeon R9 270VS Radeon HD 8860 OEM
    Radeon R9 270Radeon HD 8860 OEM