Check Prices $396
Check Prices $187
Select any two CPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Core i7-5820K 6-Core 3.3GHz Core i5-4440S 2.8GHz
Cyberpunk 2077 37% 9%
Assassins Creed: Valhalla 15% 47%
Call of Duty: Black Ops Cold War 17% 43%
Genshin Impact 52% 17%
eFootball PES 2021 32% 17%
Mafia: Definitive Edition 32% 17%
Watch Dogs Legion 15% 47%
FIFA 21 41% 2%
Marvel's Avengers 17% 43%
Microsoft Flight Simulator 28% 24%

In terms of overall gaming performance, the Intel Core i7-5820K 6-Core 3.3GHz is massively better than the Intel Core i5-4440S 2.8GHz when it comes to running the latest games. This also means it will be less likely to bottleneck more powerful GPUs, allowing them to achieve more of their gaming performance potential.

The Core i7-5820K 6-Core was released less than a year after the Core i5-4440S 2.8GHz, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.


The Core i7-5820K 6-Core has 2 more cores than the Core i5-4440S 2.8GHz. 6 cores is probably excessive if you mean to just run the latest games, as games are not yet able to harness this many cores. The cores in the Core i5-4440S 2.8GHz is more than enough for gaming purposes.

The Core i7-5820K 6-Core has 8 more threads than the Core i5-4440S 2.8GHz. The Core i5-4440S 2.8GHz has one thread per physical core, whereas the Core i7-5820K 6-Core uses hyperthreading and has 2 logical threads per physical core.



The Core i7-5820K 6-Core and Core i5-4440S 2.8GHz are not from the same family of CPUs, so their clock speeds are by no means directly comparable. Bear in mind, then, that while the Core i7-5820K 6-Core has a 0.5 GHz faster frequency, this is not always an indicator that it will be superior in performance, despite frequency being crucial when trying to avoid GPU bottlenecking. In this case, however, the difference is enough that it possibly indicates the superiority of the Core i7-5820K 6-Core.


The Core i7-5820K 6-Core has a 512 KB bigger L2 cache than the Core i5-4440S 2.8GHz, which means that it, at worst, wins out in this area, and at best, will provide superior gaming performance and will work much better with high-end graphics cards.


The Core i5-4440S 2.8GHz has a 75 Watt lower Maximum TDP than the Core i7-5820K 6-Core (though they were created with the same size 22 nm manufacturing technology). What this means is the Core i5-4440S 2.8GHz will consume significantly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill significantly, as well as prevent you from having to invest in extra cooling mechanisms (unless you overclock).

The Core i5-4440S 2.8GHz has an on-board GPU, which means that it will be capable of running basic graphics applications (i.e., games) without the need for a dedicated graphics card. The Core i7-5820K 6-Core, however, does not, and you will probably have to look for a dedicated card if you wish to use it at all.



CPU Core Details

CPU CodenameHaswell-EHaswell
MoBo SocketSocket 2011-3 / R3 / LGA2011-3LGA 1150
Notebook CPUnono
Release Date29 Aug 201430 Sep 2013
CPU LinkGD LinkGD Link

CPU Technical Specifications

CPU Cores6vs4
CPU Threads12vs4
Clock Speed3.3 GHzvs2.8 GHz
Turbo Frequency3.6 GHzvs3.3 GHz
Max TDP140 Wvs65 W
Lithography22 nmvs22 nm
Bit Width64 Bitvs64 Bit
Max Temperature67°Cvs71°C
Virtualization Technologynovsno

CPU Cache and Memory

L1 Cache Size768 KBvs256 KB
L2 Cache Size1536 KBvs1024 KB
L2 Cache Speed-vs-
L3 Cache Size15 MBvs6 MB
Max Memory Size-vs32 GB
Memory Channels-vs2
ECC Memory Supportnovsno

CPU Graphics

GraphicsIntel HD Graphics 4600 Desktop
Base GPU Frequency-vs400 MHz
Max GPU Frequency-vs1250 MHz
Displays Supported-vs-

CPU Package and Version Specifications

Package Size-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewCore i7-5820K 6-Core 3.3GHz is an extreme processor based on the 22nm, Haswell architecture.

It offers 6 Physical Cores (12 Logical), initially clocked at 3.3GHz, which may go up to 3.6GHz and 15MB of L3 Cache.


Its performance is overall identical to Core i7-4930K and is thus exceptionally good and enough for even the most demanding applications.
Core i5-4440S 2.8GHz is an energy efficient CPU based on the 22nm, Haswell architecture.

It offers 4 Physical Cores (4 Logical), initially clocked at 2.8GHz, which may go up to 3.3GHz and 6MB of L3 Cache.
Among its many features, Turbo Boost and Virtualization are activated.


Its performance is very good and sufficient for extreme gaming.