Intel · Core i7 · 2011 · LGA1366
The Intel Core i7-990X Extreme is a desktop processor with 6 cores, released in 2011 at an MSRP of $999. It is part of the Core i7 lineup, using the 1st Gen platform, and fits the LGA1366 socket. Internally, it is built on the "Gulftown" architecture. Thanks to Intel Hyper-Threading, each core can handle two instruction streams simultaneously, yielding a total of 12 threads for improved parallelism. The Core i7-990X Extreme has a base clock of 3.46 GHz and can boost up to 3.73 GHz depending on workload and thermal headroom. Intel manufactures the "Gulftown" silicon on a 32nm process node. The multiplier is unlocked, making overclocking straightforward. This processor supports DDR3 memory. With a TDP of 130W, the Core i7-990X Extreme 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 12MB of L3 cache.
Top and final LGA1366 Extreme Edition. The highest-clocked Gulftown and the last flagship on the X58 platform before Sandy Bridge-E arrived on LGA2011.
| Brand | Intel |
|---|---|
| Family | Core i7 |
| Series | 1st Gen |
| Architecture | Gulftown |
| Type | Desktop |
| Launch year | 2011 |
| Cores | 6 |
| Threads | 12 |
| Base clock | 3.46 GHz |
| Boost clock | 3.73 GHz |
| L1 cache | 32KB/core |
| L2 cache | 256KB/core |
| L3 cache | 12MB |
| TDP | 130W |
| Socket | LGA1366 |
| Process | 32nm |
| Memory type | DDR3 |
| Integrated graphics | None |
| Chipsets | X58 |
| Launch MSRP | $999 |
| Part number | BX80613I7990X |
| OEM / tray part number | AT80613005931AA |