Intel Core i5-3570K 3.4GHz
Intel Core i5-2400 3.1GHz
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10
10
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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.

The has more threads than the . Both CPUs have one thread per physical core. The Core i5-3570K 3.4GHz has one thread per physical core, whereas the Core i5-2400 3.1GHz uses hyperthreading, as it has 1 logical threads per physical core.

Multiple threads are useful for improving the performance of multi-threaded applications. Additional cores and their accompanying thread will always be beneficial for multi-threaded applications. Hyperthreading will be beneficial for applications optimized for it, but it may slow others down. For games, the number of threads is largely irrelevant, as long as you have at least 2 cores (preferably 4), and hyperthreading can sometimes even hit performance.

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.

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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
Approved

CPU Technical Specifications

CPU Cores4vs4
CPU Threads4vs4
Clock Speed3.4 GHzvs3.1 GHz
Turbo Frequency3.8 GHzvs3.4 GHz
Max TDP77 Wvs95 W
Lithography22 nmvs32 nm
Bit Width64 Bitvs64 Bit
Max Temperature67°Cvs73°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size256 KBvs256 KB
L2 Cache Size1024 KBvs1024 KB
L3 Cache Size6 MBvs6 MB
Max Memory Size-vs32 GB
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsIntel HD Graphics 4000 DesktopIntel HD Graphics 2000 Desktop
Base GPU Frequency650 MHzvs650 MHz
Max GPU Frequency-vs-
DirectX11vs10.1
Displays Supported-vs-
Comparison

CPU Package and Version Specifications

Package Size-vs-
Revision-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 performance CPU based on the 22nm, Ivy Bridge architecture.

It offers 4 Physical Cores (4 Logical), initially clocked at 3.4GHz, which may go up to 3.8GHz and 6MB of L3 Cache.
Among its many features, Turbo Boost and Virtualization are activated and the processor has multiplier unlocked.

The processor integrates mildly powerful Graphics called Intel HD Graphics 4000, with 16 Execution Units, initially clocked at 650MHz and that go up to 1150MHz, in Turbo Mode which share the L2 Cache and system RAM with the processor.
Both the processor and integrated graphics have a rated board TDP of 77W.

Compared to Core i5-2500K there's an overall 9% performance boost. Its performance is very good and sufficient for extreme gaming.
Core i5-2400 3.1GHz is a performance CPU based on the 32nm, Sandy Bridge architecture.

It offers 4 Physical Cores (4 Logical), initially clocked at 3.1GHz, which may go up to 3.4GHz and 6MB of L3 Cache.
Among its many features, Turbo Boost and Virtualization are activated.

The processor integrates weak Graphics called Intel HD Graphics 2000, with 6 Execution Units, initially clocked at 850MHz and that go up to 1100MHz, in Turbo Mode which share the L2 Cache and system RAM with the processor.
Both the processor and integrated graphics have a rated board TDP of 95W.

Its performance is very good and sufficient for extreme gaming.