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Processor product line From Wikipedia, the free encyclopedia
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.
General information | |
---|---|
Launched | November 2008 |
Discontinued | January 2011 |
Marketed by | Intel |
Designed by | Intel |
CPUID code | 106Ax |
Product code | 80601 |
Performance | |
Max. CPU clock rate | 2.66 GHz to 3.33 GHz |
Cache | |
L2 cache | 4× 256 kB |
L3 cache | 8 MB |
Architecture and classification | |
Application | Desktop |
Technology node | 45 nm |
Microarchitecture | Nehalem |
Instruction set | x86, x86-64, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2 |
Physical specifications | |
Cores |
|
Socket | |
Products, models, variants | |
Brand names | |
History | |
Predecessor | Yorkfield |
Successor | Sandy Bridge |
Support status | |
Unsupported |
Bloomfield has many new features that represent significant changes from Yorkfield:
Brand name | Model (list) | Market | Clock frequency range | QuickPath Interface |
---|---|---|---|---|
Core i7 | i7-9xx | Performance Desktop | 2.66–3.20 GHz | 1× 4.8 GT/s |
i7-9xx Extreme Edition | Extreme Desktop | 3.2–3.33 GHz | 1× 6.4 GT/s | |
Xeon | W35xx | Workstation | 2.4–3.2 GHz | 4.8–6.4 GT/s |
Core i7 Model[8] |
nm | Cores (threads) |
Clocks (GHz) | Clock multiplier |
Price (US$) |
Cache | Memory controller[1][2][3] |
QuickPath interface |
Thermal design power [7] |
Socket | Release date | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Core | Uncore | Base | Core | Uncore | ||||||||||
i7-920 | 45 nm | 4 (8) | 2.66 | 2.13 | 0.133 | 20 | 16 | 284 | 256 kB L2/core 8 MB shared L3 |
3× DDR3-800/1,066 MT/s | 1× 4.8 GT/s | 130 W | LGA 1366 | 2008-11-17 |
i7-930 | 2.80 | 21 | 294 | 2010-02-28 | ||||||||||
i7-940 | 2.93 | 22 | 562 | 2008-11-17 | ||||||||||
i7-950[9] | 3.06 | 23 | 2009-06-03 | |||||||||||
i7-960[10] | 3.20 | 24 | 2009-10-18 | |||||||||||
i7-965 Extreme Edition | 3.20 | 2.66 | 20 | 999 | 1× 6.4 GT/s | 2008-11-17 | ||||||||
i7-975 Extreme Edition [9][11] | 3.33 | 25 | 2009-06-03 |
The process of overclocking the Bloomfield architecture is similar to that of the AMD architecture due to the on-die MCH.[19] Over-clocking will be possible with the 900 series and a motherboard equipped with the X58 chipset. In early October 2008, reports surfaced that it will not be possible to use "performance" DDR3 DIMMs that require voltages higher than 1.65v, because the integrated memory controller within the Core i7 will be damaged.[20]
Bloomfield has three memory channels, and the channel bandwidth can be selected by setting the memory multiplier. However, in early benchmarks, when the clock rate is set higher than a threshold (1333 for the 965XE) the processor will only access two memory channels simultaneously. A 965XE has higher memory throughput with 3xDDR3-1333 than with 3xDDR3-1600, and 2xDDR3-1600 has almost identical throughput to 3xDDR3-1333.[citation needed]
The Core i7 Bloomfield does not support error-correcting memory.[1][2][3] Some motherboards with an LGA 1366 socket support both Core i7 and the Xeon 35xx and 55xx series processors, and advertise support for ECC memory.[21][22] However ECC functionality is only available if a Xeon is installed, not if a Core i7 is installed.
The Core i7 950 and the Core i7 975 Extreme Edition were introduced in March 2009 with prices similar to the prices for the 940 and 965 Extreme Edition, respectively, but with better performance in each case. Intel has scheduled the discontinuation of the 940 and 965XE for Q3 2009.[23][24][25] Intel announced discontinuations in other older families at the same time.[26]
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