Bloomfield" (45 nm)
* Based on Nehalem
* All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), TXT, Intel VT, Hyper-Threading, Turbo Boost, Smart Cache
* Die size: 263 mm²
* Steppings: C0, D0
Model Number sSpec Number Frequency Turbo L2 Cache L3 Cache I/O Bus Mult Uncore Speed Memory Voltage TDP Socket Release Date Part Number(s) Release Price (USD)
Core i7-920 SLBCH (C0)
SLBEJ (D0) 2667 MHz 1/1/1/2 4 × 256 KB 8 MB 1 × 4.8 GT/s QPI 20× 2133 MHz 3 × DDR3-1066 0.8 - 1.375 V 130 W LGA 1366 November 17, 2008 BX80601920
AT80601000741AA $284
Core i7-930 SLBKP (D0) 2800 MHz 1/1/1/2 4 × 256 KB 8 MB 1 × 4.8 GT/s QPI 21× 2133 MHz 3 × DDR3-1066 0.8 - 1.375 V 130 W LGA 1366 February 28, 2010 BX80601930
AT80601000897AA $294
Core i7-940 SLBCK (C0) 2933 MHz 1/1/1/2 4 × 256 KB 8 MB 1 × 4.8 GT/s QPI 22× 2133 MHz 3 × DDR3-1066 0.8 - 1.375 V 130 W LGA 1366 November 17, 2008 BX80601940
AT80601000921AA $562
Core i7-950 SLBEN (D0) 3067 MHz 1/1/1/2 4 × 256 KB 8 MB 1 × 4.8 GT/s QPI 23× 2133 MHz 3 × DDR3-1066 0.8 - 1.375 V 130 W LGA 1366 May 31, 2009 BX80601950
AT80601002112AA $562
Core i7-960 SLBEU (D0) 3200 MHz 1/1/1/2 4 × 256 KB 8 MB 1 × 4.8 GT/s QPI 24× 2133 MHz 3 × DDR3-1066 0.8 - 1.375 V 130 W LGA 1366 October 20, 2009 AT80601002727AA $562
Core i7-965 Extreme Edition SLBCJ (C0) 3200 MHz 1/1/1/2 4 × 256 KB 8 MB 1 × 6.4 GT/s QPI 24× 2667 MHz 3 × DDR3-1066 0.8 - 1.375 V 130 W LGA 1366 November 17, 2008 BX80601965
AT80601000918AA $999
Core i7-975 Extreme Edition SLBEQ (D0) 3333 MHz 1/1/1/2 4 × 256 KB 8 MB 1 × 6.4 GT/s QPI 25× 2667 MHz 3 × DDR3-1066 0.8 - 1.375 V 130 W LGA 1366 May 31, 2009 BX80601975
AT80601002274AA $999
microprocessor)
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Bloomfield Produced From 2008 to present
Designed by Intel
Max. CPU clock rate 2.66 GHz to 3.33 GHz
Min. feature size 45 nm
Instruction set x86, x86-64, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2
Microarchitecture Intel Nehalem
CPUID code 106Ax
Product code 80601
Cores 4
L2 cache 4x256kb
L3 cache 8 MB
Application Desktop
Socket(s) LGA 1366
Brand name(s) Xeon 35xx
Core i7-9xx
Bloomfield is the code name for Intel high-end desktop processors sold as Core i7-9xx and single-processor servers sold as Xeon 35xx.[1][2][3], in almost identical configurations, replacing the earlier Yorkfield processors. The Bloomfield core is closely related to the dual-processor Gainestown, which has the same CPUID value of 0106Ax (family 6, model 26) and which uses the same socket. Bloomfield uses a different socket than the later Lynnfield and Clarksfield processors based on the same 45 nm Nehalem microarchitecture, even though some of these share the same Intel Core i7 brand.
Bloomfield has many new features that represent significant changes from Yorkfield:
* 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) than the execution cores.
o Three channel memory: each channel can support up to two DDR3 DIMMs. Motherboards for Bloomfield generally have three, four (3+1), or six DIMM slots.
o Support for DDR3 memory only.
* The front side bus has been replaced by the Intel QuickPath Interconnect interface. Motherboards must use a chipset that supports QuickPath Interconnect.
* The following caches:
o 32 KB L1 instruction and 32 KB L1 data cache per core
o 256 KB L2 cache (combined instruction and data) per core
o 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, instead of a Multi-chip module of two dual-core dies as in Yorkfield
* "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.[4]
* Re-implemented Hyper-threading. Hyperthreading was introduced in the older NetBurst microarchitecture, but omitted from the subsequent Core, which was a descendant of the Pentium III family.
* Only one QuickPath interface: not intended for multi-processor motherboards. With hyperthreading enabled, each of the four physical cores can process up to two threads simultaneously, so the processor appears to the OS as eight logical CPUs.
* 45nm process technology.
* 731 million 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.
ntel Core i7 is
Intel's brand name for several families of desktop and laptop
64-bit x86-64 processors using the
Intel Nehalem microarchitecture. It is a successor to the
Intel Core 2 brand.
[1][2][3][4] The
Core i7 identifier was first applied to the initial family of processors
[5][6] codenamed Bloomfield introduced in 2008. In 2009 the name was applied to
Lynnfield and
Clarksfield models.
[7] Prior to 2010, all models were quad-core processors. In 2010, the name was applied to dual-core
Arrandale models, and the upcoming
Gulftown Core i7-9x0X Extreme processor has six hyperthreaded cores.
Intel representatives state that the moniker Core i7 is meant to help consumers decide which processor to purchase as the newer Nehalem-based products are released in the future.[8] The name continues the use of the Intel Core brand.[9] Core i7, first assembled in Costa Rica,[10] was officially launched on November 17, 2008[11] and is manufactured in Arizona, New Mexico and Oregon, though the Oregon (PTD, Fab D1D) plant has already moved to the next generation 32 nm process.
