Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 660 Ti 3-way SLI GeForce GTX 780
Cyberpunk 2077 7% 30%
Hitman 3 20% 69%
Resident Evil 8 7% 30%
Assassins Creed: Valhalla 15% 19%
FIFA 21 53% 34%
Grand Theft Auto VI 30% 83%
Call of Duty: Black Ops Cold War 18% 15%
Genshin Impact 7% 30%
Far Cry 6 34% 88%
The Medium 16% 62%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660 Ti 3-way SLI are significantly better than the Nvidia GeForce GTX 780.

The GTX 660 Ti has a 52 MHz higher core clock speed and 144 more Texture Mapping Units than the GeForce GTX 780. This results in the GTX 660 Ti providing 141.7 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 660 Ti has a 52 MHz higher core clock speed and 24 more Render Output Units than the GeForce GTX 780. This results in the GTX 660 Ti providing 24.5 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GeForce GTX 780 was released less than a year after the GTX 660 Ti, and so they are likely to have similar driver support for optimizing performance when running the latest games.

Both GPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings.

The GTX 660 Ti has 3072 MB more video memory than the GeForce GTX 780, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 660 Ti also has superior memory performance overall.

The GTX 660 Ti has 144.2 GB/sec greater memory bandwidth than the GeForce GTX 780, which means that the memory performance of the GTX 660 Ti is massively better than the GeForce GTX 780.

The GeForce GTX 660 Ti 3-way SLI has 4032 Shader Processing Units and the GeForce GTX 780 has 2304. However, the actual shader performance of the GTX 660 Ti is 3951 and the actual shader performance of the GeForce GTX 780 is 2078. The GTX 660 Ti having 1873 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 660 Ti delivers a massively smoother and more efficient experience when processing graphical data than the GeForce GTX 780.

The GeForce GTX 660 Ti 3-way SLI requires 450 Watts to run and the GeForce GTX 780 requires 250 Watts. We would recommend a PSU with at least 600 Watts for the GeForce GTX 780, but we do not have a recommended PSU wattage for the GTX 660 Ti. The GTX 660 Ti requires 200 Watts more than the GeForce GTX 780 to run. The difference is significant enough that the GTX 660 Ti may have an adverse affect on your yearly electricity bills in comparison to the GeForce GTX 780.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed915 MHzvs863 MHz
Boost Clock980 MHzvs902 MHz
ArchitectureKepler GK104-200-KD-A2 (x3)Kepler GK110-300-A1
OC Potential Good vs Fair
Driver Support Good vs Good
Release Date01 Aug 2012vs23 May 2013
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
1600x900 - vs green tick
green tick vs
2560x1440 - vs green tick
3840x2160 - vs green tick

GPU Memory

Memory6144 MBvs3072 MB
Memory Speed1502 MHzvs1502 MHz
Memory Bus576 Bitvs384 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth432.6GB/secvs288.4GB/sec
L2 Cache 1152 KB vs green tick 1536 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units4032vs2304
Actual Shader Performance100%vs100%
Texture Mapping Units336vs192
Texture Rate307.4 GTexel/svs165.7 GTexel/s
Render Output Units72vs48
Pixel Rate65.9 GPixel/svs41.4 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs2
HDMI Connections0vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power450 Wattsvs250 Watts
Recommended PSU-600 Watts & 42 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.5vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3570K 3.4GHzvsIntel Core i7-4770K 4-Core 3.5GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs2560x1440

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 660 Ti 3-way SLI is a solution of three GeForce GTX 660 Ti put together using NVIDIA'S SLI technology.
Check the page of GeForce GTX 660 Ti to know more about its chip.
As usual, SLI relies a lot on proper driver support and may suffer from micro-stuttering in lower frame rates (below 30). Benchmarks indicate the performance is overall, is up to X% better than a single GeForce GTX 660 Ti performing by itself but at times (depending whether or not the 3D game supports SLI or in the graphics driver) it performed worse than a single GeForce GTX 660 Ti. Expect this combination to draw up to 450 Watt though the average power consumption should be slightly lower.
Even the most demanding games will run at the highest settings.
GeForce GTX 780 is a high-end graphics-card based on the 28nm, Kepler architecture.
It's based on the Kepler GK110 Core (same used on Titan) but with 12 SMX activated and therefore offers 2304 Shader Processing Units, 192 TMUs and 48 ROPs on a 384-bit memory interface of fast GDDR5. While the central unit runs at 863MHz and goes up to 902MHz in Turbo, the memory clock operates at 1502MHz. It consumes up to 250W.
Benchmarks indicate that its performance is up to 30% better than previous GeForce GTX 680 and thus allows even the most demanding games to be playable at the highest settings, at 1080p. With proper overclocking and cooling, it can surpass GeForce GTX Titan.
Recommended CPU
Possible GPU Upgrades
GPU Variants