i5-3570k
Processor
Intel Core i5-3570K (Ivy Bridge) — 4 cores / 4 threads, 3.4–3.8GHz, unlocked for overclocking, 6MB L3, HD Graphics 4000 — solid for retro builds and 1080p mid-range rigs.
Product Details
Overview
The Intel Core i5-3570K is a 3rd-generation 'Ivy Bridge' desktop processor with 4 physical cores and 4 threads, a 3.4GHz base clock and up to 3.8GHz Turbo Boost. Built on Intel's 22nm process, it features a 6MB L3 cache, a 77W TDP and an unlocked multiplier (the 'K' model) for manual overclocking. The chip includes integrated Intel HD Graphics 4000 and supports dual-channel DDR3 memory on LGA1155 motherboards.
Performance & real-world use
At stock clocks the i5-3570K delivers strong single-thread performance for its era — good for 1080p gaming with a mid-range dedicated GPU, general productivity and multimedia. Modern benchmarks typically show it matching or outperforming older Sandy Bridge chips and still holding its own in lightly-threaded workloads. Because it only has 4 cores and no Hyper‑Threading, it will lag behind modern 6–8 core CPUs in heavy multi-threaded tasks like long 4K renders or large-scale video encoding, but it remains perfectly capable for web browsing, office apps, photo editing, and playing many games at 1080p with medium to high settings depending on the GPU.
Practical notes & overclocking
The unlocked multiplier makes the 3570K a favourite among budget overclockers: many chips can reach 4.2–4.6GHz on a good Z77 motherboard and decent cooling (air or AIO). You'll need an LGA1155 board (Z77 recommended for full overclocking features) and DDR3 RAM (1333/1600MHz typical). The CPU supports PCIe 3.0 and ISA extensions like AVX, SSE4.1/4.2. Expect higher power draw and temperatures when overclocked, so an aftermarket cooler is strongly recommended.
Specs summary
- Model: Intel Core i5-3570K (Ivy Bridge)
- Cores / Threads: 4 / 4
- Base / Turbo: 3.4GHz / up to 3.8GHz
- Cache: 6MB Intel Smart Cache
- Process: 22nm
- Socket: LGA1155 (Z77/Z75/H77 chipsets)
- TDP: 77W
- Integrated GPU: Intel HD Graphics 4000
- Memory: Dual-channel DDR3 (1333/1600MHz typical)
- Features: Unlocked multiplier (overclockable), PCIe 3.0, AVX support
Who this is best suited for
The i5-3570K is ideal for budget and retro PC builders, hobbyist overclockers who want an affordable unlocked chip, and users upgrading older LGA1155 systems for better 1080p gaming or everyday productivity. It’s a practical choice for office work, light photo/video editing and media HTPCs, but not the best pick for modern, heavily multi-threaded content creation or high-end 4K gaming workloads.