Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 980 Ti EVGA Hybrid 6GB Edition GeForce GTX 660 Ti 3-way SLI
Cyberpunk 2077 20% 7%
Hitman 3 4% 20%
Assassins Creed: Valhalla 27% 15%
Call of Duty: Black Ops Cold War 29% 18%
FIFA 21 60% 53%
Grand Theft Auto VI 12% 30%
Far Cry 6 16% 34%
Genshin Impact 20% 7%
Battlefield 6 4% 20%
Resident Evil 8 20% 7%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 980 Ti EVGA Hybrid 6GB Edition are very slightly better than the Nvidia GeForce GTX 660 Ti 3-way SLI.

The GTX 980 Ti has a 225 MHz higher core clock speed than the GTX 660 Ti, but the GTX 660 Ti has 160 more Texture Mapping Units than the GTX 980 Ti. As a result, the GTX 660 Ti exhibits a 106.8 GTexel/s better Texture Fill Rate than the GTX 980 Ti. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 980 Ti has a 225 MHz higher core clock speed and 24 more Render Output Units than the GTX 660 Ti. This results in the GTX 980 Ti providing 43.5 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 GTX 980 Ti was released over a year more recently than the GTX 660 Ti, and so the GTX 980 Ti is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 660 Ti.

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 980 Ti EVGA Hybrid 6GB Edition 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 660 Ti has 96 GB/sec greater memory bandwidth than the GTX 980 Ti, which means that the memory performance of the GTX 660 Ti is massively better than the GTX 980 Ti.

The GeForce GTX 980 Ti EVGA Hybrid 6GB Edition has 2816 Shader Processing Units and the GeForce GTX 660 Ti 3-way SLI has 4032. However, the actual shader performance of the GTX 980 Ti is 4668 and the actual shader performance of the GTX 660 Ti is 3951. The GTX 980 Ti having 717 better shader performance is not particularly notable, as altogether the GTX 660 Ti performs better when taking into account other relevant data.

The GeForce GTX 980 Ti EVGA Hybrid 6GB Edition requires 250 Watts to run and the GeForce GTX 660 Ti 3-way SLI requires 450 Watts. We would recommend a PSU with at least 600 Watts for the GTX 980 Ti. The GTX 660 Ti requires 200 Watts more than the GTX 980 Ti 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 GTX 980 Ti.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1140 MHzvs915 MHz
Boost Clock1228 MHzvs980 MHz
ArchitectureMaxwell GM200-310-A1Kepler GK104-200-KD-A2 (x3)
OC Potential Fair vs Good
Driver Support Great vs Good
Release Date02 Jun 2015vs01 Aug 2012
GPU LinkGD LinkGD Link

Resolution Performance

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GPU Memory

Memory6144 MBvs6144 MB
Memory Speed1753 MHzvs1502 MHz
Memory Bus384 Bitvs576 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth336.6GB/secvs432.6GB/sec
L2 Cache 3072 KB green tick vs 1152 KB
Delta Color Compression yes vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units2816vs4032
Actual Shader Performance100%vs100%
Texture Mapping Units176vs336
Texture Rate200.6 GTexel/svs307.4 GTexel/s
Render Output Units96vs72
Pixel Rate109.4 GPixel/svs65.9 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)5120x3200vs4096x2160
VGA Connections0vs0
DVI Connections1vs0
HDMI Connections1vs0
DisplayPort Connections3vs-

GPU Power Requirements

Max Power250 Wattsvs450 Watts
Recommended PSU600 Watts & 42 Amps-

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4790K 4-Core 4.0GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM16 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1600vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GTX 980 Ti EVGA Hybrid 6GB Edition is a Special Edition of NVIDIA's Enthusiast GeForce GTX 980 Ti 6GB, created by EVGA.

Overclock: Central Unit
The Central Unit now runs at 1140MHz, instead of 1000MHz and goes up to 1228MHz, in Turbo Mode.

Overclock: Memory Clock

Frame Buffer

Cooling Solution
"All in one" water cooling solution that significantly lowers the GPU operating temperature. Best of all? The water cooler is completely self contained, with an included 120mm radiator and fan. No filling, no custom tubing, no maintenance.

Benchmarks Indicate a 8% Performance Boost over the Reference GeForce GTX 980 Ti.
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
GPU Variants