Intel · Core i7 · 2012 · LGA2011
The Intel Core i7-3820 is a desktop processor with 4 cores, released in 2012 at an MSRP of $294. It is part of the Core i7 lineup, using the Sandy Bridge-E platform, and fits the LGA2011 socket. Internally, it is built on the "Sandy Bridge-E" architecture. Thanks to Intel Hyper-Threading, each core can handle two instruction streams simultaneously, yielding a total of 8 threads for improved parallelism. The Core i7-3820 has a base clock of 3.6 GHz and can boost up to 3.8 GHz depending on workload and thermal headroom. Intel manufactures the "Sandy Bridge-E" silicon on a 32nm process node. Its multiplier is locked, so any overclocking has to come from raising the base clock rather than the multiplier. This processor supports DDR3 memory. With a TDP of 130W, the Core i7-3820 sits in a typical power envelope for a modern desktop CPU. This processor has no integrated graphics — a discrete GPU is required. The cache hierarchy consists of 32KB/core of L1, 256KB/core of L2, and 10MB of L3 cache.
Entry LGA2011 Sandy Bridge-E — 4 cores rather than 6, but with quad-channel DDR3 and 40 PCIe 3.0 lanes. A way to access the X79 platform at a lower cost than the 6-core models.
| Brand | Intel |
|---|---|
| Family | Core i7 |
| Series | Sandy Bridge-E |
| Architecture | Sandy Bridge-E |
| Type | Desktop |
| Launch year | 2012 |
| Cores | 4 |
| Threads | 8 |
| Base clock | 3.6 GHz |
| Boost clock | 3.8 GHz |
| L1 cache | 32KB/core |
| L2 cache | 256KB/core |
| L3 cache | 10MB |
| TDP | 130W |
| Socket | LGA2011 |
| Process | 32nm |
| Memory type | DDR3 |
| Integrated graphics | None |
| Chipsets | X79 |
| Launch MSRP | $294 |
| Part number | BX80619I73820 |
| OEM / tray part number | CM8061901049606 |