Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 780 Gainward Phantom Edition GeForce GTX 660 MSI Hawk 2GB Edition
Red Dead Redemption 2 17% 102%
Call of Duty: Modern Warfare 17% 102%
Cyberpunk 2077 61% 178%
Fortnite: Chapter 2 46% 7%
Need For Speed Heat 17% 102%
The Outer Worlds 3% 68%
Microsoft Flight Simulator 61% 178%
Zombieland: Double Tap - Road Trip 9% 89%
Borderlands 3 24% 114%
FIFA 20 38% 8%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 780 Gainward Phantom Edition are significantly better than the Nvidia GeForce GTX 660 MSI Hawk 2GB Edition.

The GTX 660 has a 183 MHz higher core clock speed than the GTX 780, but the GTX 780 has 112 more Texture Mapping Units than the GTX 660. As a result, the GTX 780 exhibits a 86.4 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 183 MHz higher core clock speed than the GTX 780, but the GTX 780 has 24 more Render Output Units than the GTX 660. As a result, the GTX 780 exhibits a 17.3 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 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.

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 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 GTX 780 also has superior memory performance overall.

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

The GeForce GTX 780 Gainward Phantom Edition has 2304 Shader Processing Units and the GeForce GTX 660 MSI Hawk 2GB Edition has 960. However, the actual shader performance of the GTX 780 is 2198 and the actual shader performance of the GTX 660 is 1104. The GTX 780 having 1094 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.

We would recommend a PSU with at least 600 Watts for the GTX 780.

GPU Architecture

Core Speed902 MHzvs1085 MHz
Boost Clock954 MHzvs1150 MHz
ArchitectureKepler GK110-300-A1Kepler GK106-400-A1
OC Potential Fair vs Poor
Driver Support Good vs Good
Release Date30 Aug 2013vs01 Oct 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
10
green tick vs
9.2
1920x1080
9.5
green tick vs
7.3
2560x1440
7
green tick vs
5.3
3840x2160
5.3
green tick vs
3.6

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%vs53%
Technology28nmvs28nm
Texture Mapping Units192vs80
Texture Rate173.2 GTexel/svs86.8 GTexel/s
Render Output Units48vs24
Pixel Rate43.3 GPixel/svs26 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--
Recommended PSU600 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 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 Gainward Phantom Edition is a special edition of the high-end GeForce GTX 780.
This edition comes with a custom triple fan cooling solution which by itself should allow a slight performance boost, as GeForce GTX 780 benefits from the GPU Boost 2.0 technology.
Also, it has been overclocked out of the box from 863MHz to 902MHz while its boost clock is now of 954MHz. The memory clock was left untouched.
Benchmarks indicate a 5% performance boost when compared to the reference card.
GeForce GTX 660 MSI Hawk 2GB Edition a special edition of GeForce GTX 660.
The new features include the Twin Frozr III Thermal Design cooling solution which, according to MSI, generates 20% more airflow than traditional fan design.
In terms of overclocking, the base-clock was increased from 980MHz to 1085MHz and the boost clock can now reach 1150MHz, instead of 1033MHz. The memory clock was left untouched.
The overclocking is therefore extreme and the performance boost is around 8% when compared to the standard GeForce GTX 660.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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