3.2
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0
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 780 GeForce GTX 660
Cyberpunk 2077 30% 131%
Hitman 3 69% 200%
Assassins Creed: Valhalla 19% 111%
Call of Duty: Black Ops Cold War 15% 104%
FIFA 21 34% 16%
Grand Theft Auto VI 83% 224%
Far Cry 6 88% 234%
Genshin Impact 30% 131%
Battlefield 6 69% 200%
Resident Evil 8 30% 131%

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

The GeForce GTX 660 has a 117 MHz higher core clock speed than the GeForce GTX 780, but the GeForce GTX 780 has 112 more Texture Mapping Units than the GeForce GTX 660. As a result, the GeForce GTX 780 exhibits a 87.3 GTexel/s better Texture Fill Rate than the GeForce GTX 660. 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 660 has a 117 MHz higher core clock speed than the GeForce GTX 780, but the GeForce GTX 780 has 24 more Render Output Units than the GeForce GTX 660. As a result, the GeForce GTX 780 exhibits a 17.9 GPixel/s better Pixel Fill Rate than the GeForce GTX 660. 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 GeForce GTX 660, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce GTX 780 has 1024 MB more video memory than the GeForce GTX 660, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GeForce GTX 780 also has superior memory performance overall.

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

The GeForce GTX 780 has 2304 Shader Processing Units and the GeForce GTX 660 has 960. However, the actual shader performance of the GeForce GTX 780 is 2078 and the actual shader performance of the GeForce GTX 660 is 992. The GeForce GTX 780 having 1086 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce GTX 780 delivers a massively smoother and more efficient experience when processing graphical data than the GeForce GTX 660.

The GeForce GTX 780 requires 250 Watts to run and the GeForce GTX 660 requires 140 Watts. We would recommend a PSU with at least 600 Watts for the GeForce GTX 780 and a PSU with at least 450 Watts for the GeForce GTX 660. The GeForce GTX 780 requires 110 Watts more than the GeForce GTX 660 to run. The difference is significant enough that the GeForce GTX 780 may have an adverse affect on your yearly electricity bills in comparison to the GeForce GTX 660.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed863 MHzvs980 MHz
Boost Clock902 MHzvs1033 MHz
ArchitectureKepler GK110-300-A1Kepler GK106-400-A1
OC Potential Fair vs Good
Driver Support Good vs Good
Release Date23 May 2013vs13 Sep 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs green tick
10
1600x900
10
green tick vs
8.9
1920x1080
9.3
green tick vs
7
2560x1440
6.8
green tick vs
5.1
3840x2160
5.2
green tick vs
3.4

GPU Memory

Memory3072 MBvs2048 MB
Memory Speed1502 MHzvs1502 MHz
Memory Bus384 Bitvs192 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth288.4GB/secvs144.2GB/sec
L2 Cache 1536 KB green tick vs 384 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units2304vs960
Actual Shader Performance100%vs48%
Technology28nmvs28nm
Texture Mapping Units192vs80
Texture Rate165.7 GTexel/svs78.4 GTexel/s
Render Output Units48vs24
Pixel Rate41.4 GPixel/svs23.5 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections-vs0
Comparison

GPU Power Requirements

Max Power250 Wattsvs140 Watts
Recommended PSU600 Watts & 42 Ampsvs450 Watts & 33 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 i7-4770K 4-Core 3.5GHzvsIntel Core i5-3470 3.2GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1440vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce 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.
Overview
GeForce GTX 660 is a Performance Graphics Card based on the Kepler Architecture.

Architecture
The Kepler Architecture was NVIDIA's big step to power efficiency. Each Stream Multiprocessor (SMX) now hosts 192 Shader Processing Units - against the 48 of older Fermi Architecture, and has been redesigned being now clocked at the same speed of the Central Unit. This means they are more energy efficient and will consequently lead to cooler operating temperatures. However, it also means they are weaker. It can be said that one Fermi SMX is as fast as 2 Kepler SMXs.
Additionally, and not available in all GPUs, Kepler also introduced the Boost Clock Feature. The Boost Clock is an even higher Clock Speed activated when in gaming mode and becomes the effective speed of the GPU. GPU
It equips a GPU GK106-400-A1 which has 5 Stream Multiprocessors activated and thus offers 960 Shader Processing Units, 80 TMUs and 24 ROPs. The Central Unit is initially clocked at 980MHz and goes up to 1033MHz, in Turbo Mode.

Memory
The GPU accesses a 2GB frame buffer of fast GDDR5, through a 192-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 1502MHz.

Power Consumption
With a rated board TDP of 140W, it requires at least a 450W PSU with one available 6-pin connector.

Performance
GeForce GTX 660 competes with Radeon HD 7850.
At 1920x1080, the best suited resolution for GeForce GTX 660, benchmarks indicate its performance is a little over the older GeForce GTX 570 and quite superior to Radeon HD 7850.

System Suggestions
GeForce GTX 660 is best suited for resolutions up to and including 1920x1080. We recommend a Strong Processor and 8GB of RAM for Optimal Performance.
Recommended CPU
Possible GPU Upgrades
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GPU Variants