Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 660 Ti SLI GeForce GTX 770
Red Dead Redemption 2 16% 45%
Halo: Reach 63% 54%
Cyberpunk 2077 60% 99%
Call of Duty: Modern Warfare 16% 45%
Doom Eternal 0% 24%
Microsoft Flight Simulator 60% 99%
Grand Theft Auto VI 78% 121%
Dragon Ball Z Kakarot 28% 11%
Star Wars: Jedi - Fallen Order 60% 99%
Need For Speed Heat 16% 45%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660 Ti SLI are noticeably better than the Nvidia GeForce GTX 770.

The GeForce GTX 770 has a 131 MHz higher core clock speed than the GTX 660 Ti, but the GTX 660 Ti has 96 more Texture Mapping Units than the GeForce GTX 770. As a result, the GTX 660 Ti exhibits a 71.1 GTexel/s better Texture Fill Rate than the GeForce GTX 770. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GeForce GTX 770 has a 131 MHz higher core clock speed than the GTX 660 Ti, but the GTX 660 Ti has 16 more Render Output Units than the GeForce GTX 770. As a result, the GTX 660 Ti exhibits a 10.4 GPixel/s better Pixel Fill Rate than the GeForce GTX 770. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GeForce GTX 770 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 2048 MB more video memory than the GeForce GTX 770, 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 64.1 GB/sec greater memory bandwidth than the GeForce GTX 770, which means that the memory performance of the GTX 660 Ti is much better than the GeForce GTX 770.

The GeForce GTX 660 Ti SLI has 2688 Shader Processing Units and the GeForce GTX 770 has 1536. However, the actual shader performance of the GTX 660 Ti is 2634 and the actual shader performance of the GeForce GTX 770 is 1667. The GTX 660 Ti having 967 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 770.

The GeForce GTX 660 Ti SLI requires 300 Watts to run and the GeForce GTX 770 requires 230 Watts. We would recommend a PSU with at least 550 Watts for the GeForce GTX 770, but we do not have a recommended PSU wattage for the GTX 660 Ti. The GTX 660 Ti requires 70 Watts more than the GeForce GTX 770 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 770.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed915 MHzvs1046 MHz
Boost Clock980 MHzvs1085 MHz
ArchitectureKepler GK104-200-KD-A2 (x2)Kepler GK104-425-A2
OC Potential Good vs Poor
Driver Support Good vs Good
Release Date01 Aug 2012vs30 May 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs green tick
10
1600x900
10
green tick vs green tick
10
1920x1080
9.5
green tick vs
8.6
2560x1440
7.2
green tick vs
6.3
3840x2160
5.2
green tick vs
4.6

GPU Memory

Memory4096 MBvs2048 MB
Memory Speed1502 MHzvs1752 MHz
Memory Bus384 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth288.4GB/secvs224.3GB/sec
L2 Cache 768 KB green tick vs 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units2688vs1536
Actual Shader Performance100%vs80%
Technology28nmvs28nm
Texture Mapping Units224vs128
Texture Rate205 GTexel/svs133.9 GTexel/s
Render Output Units48vs32
Pixel Rate43.9 GPixel/svs33.5 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs2
HDMI Connections0vs1
DisplayPort Connections-vs0
Comparison

GPU Power Requirements

Max Power300 Wattsvs230 Watts
Recommended PSU-550 Watts & 37 Amps

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3570K 3.4GHzvsIntel Core i5-4670K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 660 Ti SLI is a solution of two 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 300 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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