GeForce GTX TITAN X (Pascal) vs GeForce GTX TITAN Z

GeForce GTX TITAN X (Pascal)
Memory: 12288Mb GDDR5XDESKTOP
Release date: 2 Aug 2016
GeForce GTX TITAN X (Pascal)
GeForce GTX TITAN Z
Memory: 6144Mb GDDR5DESKTOP
Release date: 28 May 2014
GeForce GTX TITAN Z

Summary

Reasons to consider GeForce GTX TITAN X (Pascal)

125 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX TITAN Z .
This is a much newer product, it might have better long term support.
Higher theoretical gaming performance, based on specifications.
Supports PhysX
Supports G-Sync
Supports ShadowPlay (allows game streaming/recording with minimum performance penalty)
Supports Direct3D 12 Async Compute
Based on an outdated architecture (Nvidia Pascal), there may be no performance optimizations for current games and applications

Reasons to consider GeForce GTX TITAN Z

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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 TITAN X (Pascal)

HWBench recommends GeForce GTX TITAN X (Pascal)

Based on theoretical specifications.


Specifications

Core Configuration

GeForce GTX TITAN X (Pascal)GeForce GTX TITAN Z
GPU NameGP102 (GP102)vsGK110B (GK110-430-B1)
Fab Process16 nmvs28 nm
Die Size471 mm²vs561 mm²
Transistors12,000 millionvs7,080 million
Shaders3584vs2880
Compute Units28vs15
Core clock1417 MHzvs705 MHz
ROPs96vs48
TMUs224vs240

Memory Configuration

GeForce GTX TITAN X (Pascal)GeForce GTX TITAN Z
Memory TypeGDDR5XvsGDDR5
Bus Width384 bitvs384 bit x2
Memory Speed1251 MHz
10008 MHz effective
vs1750 MHz
7000 MHz effective
Memory Size12288 Mbvs6144 Mb

Additional details

GeForce GTX TITAN X (Pascal)GeForce GTX TITAN Z
TDP250 wattsvs375 watts
Release Date2 Aug 2016vs28 May 2014

Raw Performance comparison

Pixel Rate

  • GeForce GTX TITAN X (Pascal)
    136.00 GP/s
  • GeForce GTX TITAN Z
    84.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GTX TITAN X (Pascal)
    317.00 GT/s
  • GeForce GTX TITAN Z
    338.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GTX TITAN X (Pascal)
    480.00 GB/s
  • GeForce GTX TITAN Z
    672.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GTX TITAN X (Pascal)
    10157.00 GFLOPs
  • GeForce GTX TITAN Z
    8122.00 GFLOPs

GFLOPs - higher is better