HWBench.com

    GeForce GT 640 vs GeForce GT 630 Rev. 2 PCIe x8

    GeForce GT 640
    Memory: 2048Mb DDR3DESKTOP
    Release date: 5 Jun 2012
    GeForce GT 640
    GeForce GT 630 Rev. 2 PCIe x8
    Memory: 2048Mb DDR3DESKTOP
    Release date: 29 May 2013
    GeForce GT 630 Rev. 2 PCIe x8
    You are comparing OEM or variant versions of at least one VGA. Did you mean GeForce GT 640 vs GeForce GT 630 instead?

    Summary

    Reasons to consider GeForce GT 640

    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    Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 GT 630 Rev. 2 PCIe x8

    40 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GT 640 .
    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    Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

    No clear winner declared

    We have no data to declare a winner at this time.

    Specifications

    Core Configuration

    GeForce GT 640GeForce GT 630 Rev. 2 PCIe x8
    GPU NameGK107 (GK107-300-A2)vsGK208 (GK208-301-A1)
    Fab Process28 nmvs28 nm
    Die Size118 mm²vs87 mm²
    Transistors1,270 millionvsunknown
    Shaders384vs384
    Compute Units2vs2
    Core clock902 MHzvs902 MHz
    ROPs16vs8
    TMUs32vs16

    Memory Configuration

    GeForce GT 640GeForce GT 630 Rev. 2 PCIe x8
    Memory TypeDDR3vsDDR3
    Bus Width128 bitvs64 bit
    Memory Speed891 MHz
    1782 MHz effective    		vs900 MHz
    1800 MHz effective
    Memory Size2048 Mbvs2048 Mb

    Additional details

    GeForce GT 640GeForce GT 630 Rev. 2 PCIe x8
    TDP65 wattsvs25 watts
    Release Date5 Jun 2012vs29 May 2013

    Raw Performance comparison

    Pixel Rate

    • GeForce GT 640
      7.22 GP/s
    • GeForce GT 630 Rev. 2 PCIe x8
      7.22 GP/s

    GigaPixels - higher is better

    Texel Rate

    • GeForce GT 640
      28.90 GT/s
    • GeForce GT 630 Rev. 2 PCIe x8
      14.40 GT/s

    GigaTexels - higher is better

    Memory bandwidth

    • GeForce GT 640
      28.50 GB/s
    • GeForce GT 630 Rev. 2 PCIe x8
      14.40 GB/s

    GB/s - higher is better

    Single precision performance

    • GeForce GT 640
      692.70 GFLOPs
    • GeForce GT 630 Rev. 2 PCIe x8
      692.70 GFLOPs

    GFLOPs - higher is better

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