Features:
Nehalem mikroarsitektur memiliki banyak fitur baru yang ditanamkan kedalam Core i7:
- The new LGA 1366 socket is incompatible with earlier processors.
- On-die memory controller: the memory is directly connected to the processor. It is called the uncore part and runs at a different clock (uncore clock) of execution cores.
- Three channel memory: each channel can support one or two DDR3 DIMMs. Motherboards for Core i7 generally have three, four (3+1) or six DIMM slots.
- Support for DDR3 only.
- No ECC support.
- The front side bus has been replaced by the Intel QuickPath Interconnect interface. Motherboards must use a chipset that supports QuickPath.
- The following caches:
- 32 KB L1 instruction and 32 KB L1 data cache per core
- 256 KB L2 cache (combined instruction and data) per core
- 8 MB L3 (combined instruction and data) "inclusive", shared by all cores
- Single-die device: all four cores, the memory controller, and all cache are on a single die.
- "Turbo Boost" technology allows all active cores to intelligently clock themselves up in steps of 133 MHz over the design clock rate as long as the CPU's predetermined thermal and electrical requirements are still met.
- Re-implemented Hyper-threading. Each of the four cores can process up to two threads simultaneously, so the processor appears to the OS as eight CPUs. This feature was present in the older NetBurst microarchitecture but was dropped in Core.
- Only one QuickPath interface: not intended for multi-processor motherboards.
- 45nm process technology.
- 731M transistors.
- 263 mm2 Die size.
- Sophisticated power management can place an unused core in a zero-power mode.
- Support for SSE4.2 & SSE4.1 instruction sets.
Intel Quick Path Interconnect (QPI) merupakan teknologi interkoneksi antara prosesor dengan chipset yang menggantikan teknologi Front Side Bus (FSB) yang digunakan pada generasi prosesor Intel sebelumnya. Teknologi QPI ini memberikan kecepatan dan bandwidth koneksi yang jauh lebih besar daripada teknologi FSB.
Intel Turbo Boost Technology adalah teknologi yang secara otomatis memungkinkan setiap core pada prosesor berbasis Nehalem untuk berjalan pada clock yang lebih tinggi dari spesifikasi apabila kita menjalankan program aplikasi single-threading sehingga kinerja yang dicapai sama baiknya dengan aplikasi yang telah multithreading.
Jenis-jenis processor intel i7 yang telah dirilis dan yang akan dirilis,diantaranya adalah :
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