GeForce GT 640M vs Radeon R9 M470X

GeForce GT 640M
Memory: 2048Mb DDR3MOBILE
Release date: 22 Mar 2012
GeForce GT 640M
Radeon R9 M470X
Memory: 4096Mb GDDR5MOBILE
Release date: 15 May 2016
Radeon R9 M470X

Summary

Reasons to consider GeForce GT 640M

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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications.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 R9 M470X

This is a much newer product, it might have better long term support.
Higher theoretical gaming performance, based on specifications.
Supports Direct3D 12 Async Compute.
Supports FreeSync.
Supports ReLive (allows game streaming/recording with minimum performance penalty).
Supports TrueAudio.

Radeon R9 M470X

HWBench recommends Radeon R9 M470X

Based on theoretical specifications.


Specifications

Core Configuration

GeForce GT 640MRadeon R9 M470X
GPU NameGK107 (N13P-GS)vsStrato (Strato XT)
Fab Process28 nmvs28 nm
Die Size118 mm²vs160 mm²
Transistors1,270 millionvs2,080 million
Shaders384vs896
Compute Units2vs14
Core clock625 MHzvs1000 MHz
ROPs16vs16
TMUs32vs56

Memory Configuration

GeForce GT 640MRadeon R9 M470X
Memory TypeDDR3vsGDDR5
Bus Width128 bitvs128 bit
Memory Speed900 MHz
1800 MHz effective
vs1500 MHz
6000 MHz effective
Memory Size2048 Mbvs4096 Mb

Additional details

GeForce GT 640MRadeon R9 M470X
TDP32 wattsvs0 watts
Release Date22 Mar 2012vs15 May 2016

Raw Performance comparison

Pixel Rate

  • GeForce GT 640M
    5.00 GP/s
  • Radeon R9 M470X
    17.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GT 640M
    20.00 GT/s
  • Radeon R9 M470X
    61.60 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GT 640M
    28.80 GB/s
  • Radeon R9 M470X
    96.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GT 640M
    480.00 GFLOPs
  • Radeon R9 M470X
    1971.20 GFLOPs

GFLOPs - higher is better

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