Select any two GPUs for comparison
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Gaming Performance Comparison

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

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

The 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 GTX 660. As a result, the GeForce GTX 780 exhibits a 87.3 GTexel/s better Texture Fill Rate than the 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 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 GTX 660. As a result, the GeForce GTX 780 exhibits a 17.9 GPixel/s better Pixel Fill Rate than the 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 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 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 GTX 660, which means that the memory performance of the GeForce GTX 780 is massively better than the GTX 660.

The GeForce GTX 660 Direct CU II Edition has 960 Shader Processing Units and the GeForce GTX 780 has 2304. However, the actual shader performance of the GTX 660 is 991 and the actual shader performance of the GeForce GTX 780 is 2078. The GeForce GTX 780 having 1087 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 GTX 660.

The GeForce GTX 780 requires 250 Watts to run but there is no entry for the GTX 660. We would recommend a PSU with at least 450 Watts for the GTX 660 and a PSU with at least 600 Watts for the GeForce GTX 780. The GeForce GTX 780 has been recommended a PSU with 150 Watts more than the GTX 660. The difference is significant enough that the GeForce GTX 780 may have an adverse affect on your yearly electricity bills in comparison to the GTX 660.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed980 MHzvs863 MHz
Boost Clock1032 MHzvs902 MHz
ArchitectureKepler GK106-400-A1Kepler GK110-300-A1
OC Potential Good vs Fair
Driver Support Good vs Good
Release Date01 Sep 2012vs23 May 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

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

GPU Memory

Memory2048 MBvs3072 MB
Memory Speed1502 MHzvs1502 MHz
Memory Bus192 Bitvs384 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth144.2GB/secvs288.4GB/sec
L2 Cache 384 KB vs green tick 1536 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units960vs2304
Actual Shader Performance48%vs100%
Technology28nmvs28nm
Texture Mapping Units80vs192
Texture Rate78.4 GTexel/svs165.7 GTexel/s
Render Output Units24vs48
Pixel Rate23.5 GPixel/svs41.4 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power-250 Watts
Recommended PSU450 Watts & 24 Ampsvs600 Watts & 42 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 i5-3470 3.2GHzvsIntel 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 Direct CU II Edition is a special edition of GeForce GTX 660.
The only new feature is the DirectCU II cooling solution which, according to Asus, is 20% more effective than the standard/reference cooler but doesn't affect performance directly and so the performance is exactly like the standard GeForce GTX 660. Gamers will want to buy the OC or TOP versions for superior performance.
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
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