Quick Verdict
A legendary overclocker's dream in its day, the 3570K still holds nostalgic value and can handle basic tasks, though it's obsolete for modern gaming.
Overview
Launch
2012
Status
End-of-lifeGeneration
3rd Generation (Ivy Bridge)
Market
Desktop
The Intel Core i5-3570K is an unlocked quad-core desktop processor launched in April 2012 as part of the Ivy Bridge family. Built on a 22 nm process, it features four physical cores and four threads. The 'K' suffix denotes an unlocked multiplier, making it a favorite among enthusiasts and overclockers. It operates at a base clock of 3.4 GHz and can turbo boost up to 3.8 GHz out of the box. With a 77 W TDP, it strikes a balance between power consumption and overclocking headroom. It includes 6 MB of L3 cache and integrates Intel HD 4000 graphics, a significant upgrade over the HD 2500 found in non-K i5s. The i5-3570K was widely regarded as the best value gaming CPU of its generation, offering exceptional price-to-performance value. Though end-of-life, it remains a capable chip for legacy gaming and overclocking experimentation.
The Intel Core i5-3570K was the processor to buy for PC gamers on a budget in 2012. With an unlocked multiplier, 4 cores, and boost clocks up to 3.8 GHz, it offered incredible overclocking potential.
It also featured Intel HD 4000 graphics, a step up from the standard HD 2500. Today, it is obsolete but remains a fun chip for retro builds and overclocking nostalgia.
Specifications
Performance
Handles office apps fine, but struggles with heavy modern web scripts.
Basic VM capability, but limited by 4 threads.
Overclocked, it can handle older games well, but bottlenecks modern GPUs heavily.
Efficiency drops significantly when overclocked due to 22nm thermal limits.
- •Requires a dedicated GPU
- •Can still run eSports titles at low settings when overclocked
- •PCIe 3.0 support helps with GPU compatibility
- •No AI hardware
- •Unsuitable for modern AI workloads
Architecture
22nm
Process Node
Ivy Bridge
Codename
4C / 4T
Core Config
6 MB
L3 Cache
77 W
TDP
Architecture Overview
The Core i5-3570K utilizes the Ivy Bridge microarchitecture, which is a die shrink of Sandy Bridge from 32nm to 22nm. This transition introduced Intel's 3D tri-gate transistors, significantly reducing power leakage and improving energy efficiency. The architecture provides modest IPC gains over Sandy Bridge, generally around 5 percent. The processor features four physical cores without Hyper-Threading, utilizing 6 MB of shared L3 cache. A notable upgrade is the native support for PCIe 3.0, doubling the bandwidth per lane compared to PCIe 2.0. Unlike the standard i5-3570, the 3570K features Intel HD 4000 graphics with 16 execution units, offering double the graphical horsepower of the HD 2500. The memory controller supports dual-channel DDR3 up to 1600 MT/s. The unlocked multiplier allows enthusiasts to push clock speeds well beyond stock, though the 22nm process and use of thermal paste under the IHS limited extreme overclocking compared to soldered Sandy Bridge.
CPU Design
4 physical cores, 4 threads, no Hyper-Threading.
Memory Subsystem
Dual-channel DDR3-1600 controller.
PCIe & I/O
16 PCIe 3.0 lanes for direct GPU and expansion connectivity.
Overclocking
Unlocked multiplier for easy BCLK and ratio tuning.
- 22nm die shrink
- Native PCIe 3.0 support
- Better HD 4000 graphics over HD 3000
Key Highlights
- Unlocked multiplier for overclocking
- Intel HD 4000 graphics
- Supports PCIe 3.0
- True 4 physical cores
- Obsolete 22nm process
- Uses thermal paste under IHS, limiting thermal transfer
- Weak integrated graphics for modern gaming
- Uses DDR3 memory
History
Launched in April 2012, the Core i5-3570K arrived during a critical transition for Intel. The Ivy Bridge architecture marked the industry's first move to a 22nm process, introducing 3D tri-gate transistors. While this shift improved power efficiency, early 22nm chips faced thermal issues under heavy overclocking compared to the previous 32nm Sandy Bridge, largely due to Intel's use of thermal paste under the integrated heat spreader instead of solder.
Despite this, the 3570K became the darling of the enthusiast community, offering fantastic gaming performance at a reasonable price. It dominated the DIY market, easily outpacing AMD's Bulldozer lineup. The 3570K cemented the Core i5 'K' series as the default recommendation for gamers for years to come, a legacy that continued well into the Haswell and Skylake eras.
Improvements over Previous Generation
- 22nm die shrink
- Native PCIe 3.0 support
- Better HD 4000 graphics over HD 3000
Alternatives & Competitors
Should You Buy It?
Not Recommended for the right buyer
The Core i5-3570K is obsolete and should not be considered for a new build. However, it holds niche value for enthusiasts looking to build a retro gaming rig or experiment with overclocking on a budget. If you already own a Z77 or Z75 motherboard, finding a used 3570K can be a fun, cheap project. Overclocked to 4.2-4.5 GHz, it can still handle older games and basic computing tasks. However, its lack of modern instruction sets and DDR3 support makes it irrelevant for modern workloads. Do not spend more than a few dollars on this chip. For any new system, a modern Intel Core i3 or AMD Ryzen 3 will offer vastly superior performance and efficiency out of the box.
Avoid if…
- Building a new PC
- Modern gaming
- Video editing
- Need DDR4/DDR5 memory
Use Cases
Interesting Facts
It was widely considered the best budget gaming CPU of 2012.
Features Intel's 3D tri-gate transistors.
The HD 4000 graphics have 16 execution units.
Maximum Tcase is 67°C.
Delidding (removing the IHS) was popular to improve thermals.
Has a maximum memory bandwidth of 25.6 GB/s.
The die size is 160 mm².
Lacks AVX2 instructions, only supporting AVX.
Uses the FC-LGA12C package.
Part of the legendary Sandy Bridge-Ivy Bridge era.
People Also Ask
Is the Core i5-3570K good for gaming?
Only for retro games; it lacks the single-core speed for modern titles.
Can I overclock the i5-3570K?
Yes, it features an unlocked multiplier for easy overclocking.
Does the i5-3570K support Windows 11?
Not officially, as it is not on the supported CPU list.
What socket does the i5-3570K use?
It uses the LGA 1155 socket.
What graphics are integrated into the i5-3570K?
It has Intel HD 4000 integrated graphics.
Does the i5-3570K have Hyper-Threading?
No, it has 4 cores and 4 threads.
What is the TDP of the i5-3570K?
The TDP is 77 Watts.
What memory does the i5-3570K support?
It supports DDR3 memory up to 1600 MT/s.
When was the i5-3570K released?
It was released in April 2012.
What is the difference between i5-3570 and i5-3570K?
The 3570K has an unlocked multiplier and HD 4000 graphics, while the 3570 is locked with HD 2500.
Frequently Asked Questions
What is the base clock of the i5-3570K?
The base clock is 3.4 GHz.
What is the max turbo frequency?
It can boost up to 3.8 GHz.
How much L3 cache does it have?
It has 6 MB of L3 cache.
Does it support PCIe 3.0?
Yes, it offers 16 PCIe 3.0 lanes.
What is the max operating temperature?
Max Tcase is 67°C.
Does it support ECC memory?
No, it does not support ECC.
What is the launch price of the i5-3570K?
The launch price was $212.
Does it support virtualization?
Yes, it supports VT-x, but not VT-d.
What is the part number for the i5-3570K?
The part number is SR0PM.
Does it include AES-NI?
Yes, it supports AES-NI instructions.