GeForce RTX 2080 Ti vs GeForce GTX 660 Ti

GeForce RTX 2080 Ti
Memory: 11264Mb GDDR6DESKTOP
Release date: 20 Aug 2018
GeForce RTX 2080 Ti
GeForce GTX 660 Ti
Memory: 2048Mb GDDR5DESKTOP
Release date: 16 Aug 2012
GeForce GTX 660 Ti

Summary

Reasons to consider GeForce RTX 2080 Ti

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.
Supports DirectX Raytracing (DXR)
Supports Deep Learning Super-Sampling (DLSS)

Reasons to consider GeForce GTX 660 Ti

100 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce RTX 2080 Ti .
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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications.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 RTX 2080 Ti

HWBench recommends GeForce RTX 2080 Ti

Based on theoretical specifications.


Specifications

Core Configuration

GeForce RTX 2080 TiGeForce GTX 660 Ti
GPU NameTU102 ()vsGK104 (GK104-300-KD-A2)
Fab Process12 nmvs28 nm
Die Size754 mm²vs294 mm²
Transistors18,600 millionvs3,540 million
Shaders4352vs1344
Compute Units68vs7
Core clock1350 MHzvs915 MHz
ROPs88vs24
TMUs272vs112

Memory Configuration

GeForce RTX 2080 TiGeForce GTX 660 Ti
Memory TypeGDDR6vsGDDR5
Bus Width352 bitvs192 bit
Memory Speed1750 MHz
14000 MHz effective
vs1502 MHz
6008 MHz effective
Memory Size11264 Mbvs2048 Mb

Additional details

GeForce RTX 2080 TiGeForce GTX 660 Ti
TDP250 wattsvs150 watts
Release Date20 Aug 2018vs16 Aug 2012

Raw Performance comparison

Pixel Rate

  • GeForce RTX 2080 Ti
    132.00 GP/s
  • GeForce GTX 660 Ti
    25.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce RTX 2080 Ti
    408.00 GT/s
  • GeForce GTX 660 Ti
    102.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce RTX 2080 Ti
    616.00 GB/s
  • GeForce GTX 660 Ti
    144.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce RTX 2080 Ti
    13056.00 GFLOPs
  • GeForce GTX 660 Ti
    2460.00 GFLOPs

GFLOPs - higher is better