Intel Core i7 5820K
The Core i7 5820K is part of the latest enthusiast-level of Intel's CPU family, Haswell-E. It is a six-core / 12 thread components featuring 15MB of shared L3 cache but only 28 PCI Express lanes. It also checks in with a slightly slower base clock of 3.3GHz (Turbo Boost up to 3.6GHz). All of these chips are unlocked.
6
Cores
12
Threads
3.3 GHz
Base Clock
3.6 GHz
Boost Clock
Socket LGA 2011-3
Socket
140 W
TDP
No iGPU
Graphics
$85
Price
| Release date: | Sep 1, 2014 | Price at Launch: | $389 |
| Cores: | 6 | Threads: | 12 |
| Base Clock: | 3.3 GHz | Boost Clock: | 3.6 GHz |
| Type: | Desktop | Multithreading: | Yes |
| L2 Cache: | 1.5 MB | L3 Cache: | 15 MB |
| Box Cooler: | No | TDP: | 140 W |
| Socket: | Socket LGA 2011-3 | Memory Support: | DDR4‑2133 |
| Codename: | Haswell‑E | Process Size: | 22 nm |
| Integrated Graphics: | No | NPU: | No |
| PCIe Support: | PCIe 3.0, 28 Lanes |
Price History
Intel Core i7 5820K pricing
| Price | Date | |
| Current | $85 | Dec 15, 2025 |
| Highest* | $198 | Jun 27, 2025 |
| Lowest* | $85 | Jun 24, 2025 |
| Average | $126 | |
* Prices are based on listings from Newegg and other major retailers over the past 12+ months.
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Released in August 2014 for a reasonable $390 -- the most affordable Haswell-E processor available at the time -- Intel's hexa-core Core i7-5820K has proven popular among enthusiast builders over the years and it's about time we see how it compares...
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