GeForce RTX 2080 Ti vs GeForce GTX 660 Ti

GeForce RTX 2080 Ti
Memory: 11264Mb GDDR6 DESKTOP
Release date: 20 Aug 2018
GeForce RTX 2080 Ti
GeForce GTX 660 Ti
Memory: 2048Mb GDDR5 DESKTOP
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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications.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 Ti GeForce GTX 660 Ti
GPU Name TU102 () vs GK104 (GK104-300-KD-A2)
Fab Process 12 nm vs 28 nm
Die Size 754 mm² vs 294 mm²
Transistors 18,600 million vs 3,540 million
Shaders 4352 vs 1344
Compute Units 68 vs 7
Core clock 1350 MHz vs 915 MHz
ROPs 88 vs 24
TMUs 272 vs 112

Memory Configuration

GeForce RTX 2080 Ti GeForce GTX 660 Ti
Memory Type GDDR6 vs GDDR5
Bus Width 352 bit vs 192 bit
Memory Speed 1750 MHz
14000 MHz effective
vs 1502 MHz
6008 MHz effective
Memory Size 11264 Mb vs 2048 Mb

Additional details

GeForce RTX 2080 Ti GeForce GTX 660 Ti
TDP 250 watts vs 150 watts
Release Date 20 Aug 2018 vs 16 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