GeForce GTX 675M vs GeForce 820M

GeForce GTX 675M
Memory: 2048Mb GDDR5MOBILE
Release date: 22 Mar 2012
GeForce GTX 675M
GeForce 820M
Memory: 2048Mb DDR3MOBILE
Release date: 21 Mar 2015
GeForce 820M

Summary

Reasons to consider GeForce GTX 675M

Higher theoretical gaming performance, based on specifications.
Supports PhysX
Based on an outdated architecture (Nvidia Fermi), there are no performance optimizations for current games and applications

Reasons to consider GeForce 820M

55 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX 675M .
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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

GeForce GTX 675M

HWBench recommends GeForce GTX 675M

Based on theoretical specifications.


Specifications

Core Configuration

GeForce GTX 675MGeForce 820M
GPU NameGF114 (N13E-GS1-A1)vsGK107 ()
Fab Process40 nmvs28 nm
Die Size332 mm²vs118 mm²
Transistors1,950 millionvs1,270 million
Shaders384vs384
Compute Units8vs2
Core clock620 MHzvs810 MHz
ROPs32vs16
TMUs64vs32

Memory Configuration

GeForce GTX 675MGeForce 820M
Memory TypeGDDR5vsDDR3
Bus Width256 bitvs128 bit
Memory Speed750 MHz
3000 MHz effective
vs901 MHz
1802 MHz effective
Memory Size2048 Mbvs2048 Mb

Additional details

GeForce GTX 675MGeForce 820M
TDP100 wattsvs45 watts
Release Date22 Mar 2012vs21 Mar 2015

Raw Performance comparison

Pixel Rate

  • GeForce GTX 675M
    9.92 GP/s
  • GeForce 820M
    6.48 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GTX 675M
    39.70 GT/s
  • GeForce 820M
    25.92 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GTX 675M
    96.00 GB/s
  • GeForce 820M
    28.83 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GTX 675M
    952.30 GFLOPs
  • GeForce 820M
    622.10 GFLOPs

GFLOPs - higher is better

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