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

GeForce GT 640
Memory: 2048Mb DDR3 DESKTOP
Release date: 5 Jun 2012
GeForce GT 640
GeForce GT 630 Rev. 2 PCIe x8
Memory: 2048Mb DDR3 DESKTOP
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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications.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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications.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 640 GeForce GT 630 Rev. 2 PCIe x8
GPU Name GK107 (GK107-300-A2) vs GK208 (GK208-301-A1)
Fab Process 28 nm vs 28 nm
Die Size 118 mm² vs 87 mm²
Transistors 1,270 million vs unknown
Shaders 384 vs 384
Compute Units 2 vs 2
Core clock 902 MHz vs 902 MHz
ROPs 16 vs 8
TMUs 32 vs 16

Memory Configuration

GeForce GT 640 GeForce GT 630 Rev. 2 PCIe x8
Memory Type DDR3 vs DDR3
Bus Width 128 bit vs 64 bit
Memory Speed 891 MHz
1782 MHz effective
vs 900 MHz
1800 MHz effective
Memory Size 2048 Mb vs 2048 Mb

Additional details

GeForce GT 640 GeForce GT 630 Rev. 2 PCIe x8
TDP 65 watts vs 25 watts
Release Date 5 Jun 2012 vs 29 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