Intel Core i5-3570K 3.4GHz
Intel Core i5-2400 3.1GHz
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Gaming Performance Comparison

In terms of overall gaming performance, the Intel Core i5-3570K 3.4GHz is massively better than the Intel Core i5-2400 3.1GHz 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 i5-3570K 3.4GHz was released over a year more recently than the Core i5-2400 3.1GHz, and so the Core i5-3570K 3.4GHz is likely to have better levels of support, and will be more optimized for running the latest games.

Both CPUs 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 (assuming they are accompanied by equivalently powerful GPUs).

The Core i5-3570K 3.4GHz and the Core i5-2400 3.1GHz both have 4 cores, which is not likely to be a limiting factor for gaming.

More important for gaming than the number of cores and threads is the clock rate. Problematically, unless the two CPUs are from the same family, this can only serve as a general guide and nothing like an exact comparison, because the clock cycles per instruction (CPI) will vary so much.

The Core i5-3570K 3.4GHz and Core i5-2400 3.1GHz 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 i5-3570K 3.4GHz has a 0.3 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. As such, we need to look elsewhere for more reliable comparisons.

Aside from the clock rate, the next-most important CPU features for PC game performance are L2 and L3 cache size. Faster than RAM, the more cache available, the more data that can be stored for lightning-fast retrieval. L1 Cache is not usually an issue anymore for gaming, with most high-end CPUs eking out about the same L1 performance, and L2 is more important than L3 - but L3 is still important if you want to reach the highest levels of performance. Bear in mind that although it is better to have a larger cache, the larger it is, the higher the latency, so a balance has to be struck.

The Core i5-3570K 3.4GHz and the Core i5-2400 3.1GHz have the same L2 cache size, and the same L3 cache size, so in terms of cache-related gaming performance, the two CPUs are too similar to judge.

The maximum Thermal Design Power is the power in Watts that the CPU will consume in the worst case scenario. The lithography is the semiconductor manufacturing technology being used to create the CPU - the smaller this is, the more transistors that can be fit into the CPU, and the closer the connections. For both the lithography and the TDP, it is the lower the better, because a lower number means a lower amount of power is necessary to run the CPU, and consequently a lower amount of heat is produced.

The Core i5-3570K 3.4GHz has a 18 Watt lower Maximum TDP than the Core i5-2400 3.1GHz, and was created with a 10 nm smaller manufacturing technology. What this means is the Core i5-3570K 3.4GHz will consume slightly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill slightly, as well as prevent you from having to invest in extra cooling mechanisms (unless you overclock).

The Core i5-3570K 3.4GHz and the Core i5-2400 3.1GHz both have an on-board GPU, which means that they will be capable of running basic graphics applications (i.e., games) without the need for a dedicated graphics card.

For an in-depth GPU comparison, click on the GPU comparison icon that you can find throughout Game-Debate:

On-board GPUs tend to be fairly awful in comparison to dedicated cards from the likes of AMD or Nvidia, but as they are built into the CPU, they also tend to be cheaper and require far less power to run (this makes them a good choice for laptops). We would recommend a dedicated card for running the latest games, but integrated GPUs are improving all the time and casual gamers may find less recent games perform perfectly acceptably.

Can I Run It

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CPU Core Details

CPU CodenameIvy BridgeSandy Bridge
MoBo SocketLGA 1155/Socket H2LGA 1155/Socket H2
Notebook CPUnono
Release Date30 Apr 201211 Jan 2011
CPU LinkGD LinkGD Link

CPU Technical Specifications

CPU Cores4vs4
Clock Speed3.4 GHzvs3.1 GHz
Turbo Frequency-vs-
Max TDP77 Wvs95 W
Lithography22 nmvs32 nm
Bit Width-vs-
Virtualization Technologynovsno

CPU Cache and Memory

L1 Cache Size256 KBvs256 KB
L2 Cache Size1024 KBvs1024 KB
L3 Cache Size6 MBvs6 MB
ECC Memory Supportnovsno

CPU Graphics

GraphicsIntel HD Graphics 4000 DesktopIntel HD Graphics 2000 Desktop
Base GPU Frequency-vs-
Max GPU Frequency-vs-
Displays Supported-vs-

CPU Package and Version Specifications

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

Gaming Performance Value

Battlefield 3vs
Sleeping Dogsvs
The Elder Scrolls Vvs
Assassins Creed: Revelationsvs
Assassins Creed 2vs
Performance Value

CPU Mini Review

Mini ReviewCore i5-3570K 3.4GHz is a Quad desktop CPU based on 22nm, Ivy Bridge micro-architecture. It offers almost all of the Ivy Bridge features, except Multi-Threading. Each Core is initially clocked at 3.4GHz and will go up to 3800 MHz (Single and Dual Modes), 3700 MHz (Triple Mode) 3600 MHz (Quad Mode). It should consume no more than 77 Watt.
It also features integrated Graphics called Intel HD 4000 (and not 2500 unlike 3550), clocked at 650 MHz (up to 1150 MHz in Turbo Mode).
Its gaming performance is only slightly lower than high-end i7 CPUs but it performs considerably worse on other software applications.
Paired with the appropriate GPU, even the most demanding games will run at the highest settings.
Compared to previous 2500K, it performs up to 15% better and heats less thanks to the smaller technology.
Core i5 is a brand name used by Intel for several microprocessors, the first of which were introduced in late 2009. It is positioned between the mainstream Core i3 & Core 2 and the high-end Core i7 & Xeon brands.
Core i5, like Core i7, is based on the Nehalem microarchitecture. The first Core i5 was introduced on September 8, 2009 and is a mainstream variant of the Core i7, initially only quad-core desktop processors based on Lynnfield, with dual-core mobile (Arrandale) and desktop processors (Clarkdale) following in 2010.
On September 8, 2009, Intel released the first Core i5 processor: The Core i5 750,[1] which is a 2.66 GHz quad-core Lynnfield processor with Hyper-threading disabled. Lynnfield Core i5 processors have an 8 MB L3 cache, a DMI bus running at 2.5 GT/s and support for dual-channel DDR3-800/1066/1333 memory.