Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 780 Zotac OC Edition SLI GeForce GTX 660 Ti 3-way SLI
Cyberpunk 2077 20% 7%
Hitman 3 3% 20%
Assassins Creed: Valhalla 27% 15%
Resident Evil 8 20% 7%
FIFA 21 60% 53%
Grand Theft Auto VI 12% 30%
Call of Duty: Black Ops Cold War 30% 18%
Genshin Impact 20% 7%
The Medium 1% 16%
Far Cry 6 15% 34%

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

The GTX 780 has a 26 MHz higher core clock speed and 48 more Texture Mapping Units than the GTX 660 Ti. This results in the GTX 780 providing 53.9 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 780 has a 26 MHz higher core clock speed and 24 more Render Output Units than the GTX 660 Ti. This results in the GTX 780 providing 24.4 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 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 GeForce GTX 780 Zotac OC Edition SLI and the GeForce GTX 660 Ti 3-way SLI have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

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

The GeForce GTX 780 Zotac OC Edition SLI has 4608 Shader Processing Units and the GeForce GTX 660 Ti 3-way SLI has 4032. However, the actual shader performance of the GTX 780 is 4576 and the actual shader performance of the GTX 660 Ti is 3951. The GTX 780 having 625 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 780 delivers a massively smoother and more efficient experience when processing graphical data than the GTX 660 Ti.

The GeForce GTX 780 Zotac OC Edition SLI requires 450 Watts to run and the GeForce GTX 660 Ti 3-way SLI requires 450 Watts. We would recommend a PSU with at least 750 Watts for the GTX 780. The two GPUs require the same amount of wattage to run. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed941 MHzvs915 MHz
Boost Clock993 MHzvs980 MHz
ArchitectureKepler GK110-300-A1 (x2)Kepler GK104-200-KD-A2 (x3)
OC Potential Poor vs Good
Driver Support Good vs Good
Release Date23 May 2013vs01 Aug 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs -
1600x900
10
green tick vs -
1920x1080
10
green tick vs green tick
10
2560x1440
9.1
green tick vs -
3840x2160
6.8
green tick vs -

GPU Memory

Memory6144 MBvs6144 MB
Memory Speed1502 MHzvs1502 MHz
Memory Bus768 Bitvs576 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth576.8GB/secvs432.6GB/sec
L2 Cache 3072 KB green tick vs 1152 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units4608vs4032
Actual Shader Performance100%vs100%
Technology28nmvs28nm
Texture Mapping Units384vs336
Texture Rate361.3 GTexel/svs307.4 GTexel/s
Render Output Units96vs72
Pixel Rate90.3 GPixel/svs65.9 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs0
HDMI Connections1vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power450 Wattsvs450 Watts
Recommended PSU750 Watts & 42 Amps-

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.5vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4770K 4-Core 3.5GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM12 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1600vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewThe SLI setup of GeForce GTX 780 Zotac OC Edition.GeForce 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.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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