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Intel Core i5 750 2.66GHz Socket 1156 Processor Review

Intel Core i5 750 2.66GHz Socket 1156 Processor Review - PCSTATS
Abstract: The Intel Core i5 750 processor is a mainstream quad-core CPU that promises enthusiast-level performance for the masses. The Core i5 750 is part of Intel's most recent generation of socket 1156 processors which include not only the Intel Core i5 700-series but also several Intel Core i7 800-series chips, codenamed "Lynnfield".
 94% Rating:   
Filed under: CPU / Processors Published:  Author: 
External Mfg. Website: Intel Oct 10 2009   Julian Apong  
Home > Reviews > CPU / Processors > Intel Core i5 750

Intel Core i5 / i7 Naming Confusions

Intel has complicated things a little when it comes to branding, so it's important to clarify exactly what's being talked about when people throw around terms like Core i5, "Nehalem", and "Lynnfield".

CPU Socket

Intel 'Nehalem' Family Processor Breakdown

Processor Model Clock Speed
Max Turbo Frequency
Cores/Threads L3 Cache
Thermal Design Power


Intel 'Bloomfield' Platform (X58 Express Chipset), Triple-channel, DDR3-1066, socket 1366

Intel Core i7 975

3.3 GHz up to 3.60GHz (single Core) 4/8



Intel Core i7 960

3.2 GHz up to 3.46GHz (single Core) 4/8



Intel Core i7 920

2.66 GHz up to 3.00GHz (single Core) 4/8




Intel 'Lynnfield' Platform (P55 Express Chipset), Dual-channel, DDR3-1333, socket 1156

Intel Core i7 870

2.93 GHz up to 3.60 GHz (single core) 4/8




Intel Core i7 860

2.80 GHz up to 3.46GHz (single core) 4/8




Intel Core i5 750

2.66 GHz up to 3.20GHz (single core) 4/4




All of the processors in the above chart are part of Intel's "Nehalem" family of processors, which means their processing cores are largely built on the same architecture, although they have some very different implementations and interfaces.

Intel has split the "Nehalem" family into three different segments: the Core i7 900-series, the Core i7 800-series, and the Core i5-700 series. The Core i7 900-series you're already familiar with: they were the first Core i7 chips, launched in November 2008. These processors are native to socket 1366, require triple-channel DDR3 memory and use Intel's high-end X58 Express chipset. Intel's codename for this processor/motherboard platform is "Bloomfield".

The Core i7-800 series actually don't have much in common with the Intel Core i7 900 series at all. The socket has changed from a 1366-pin Land Grid Array (LGA-1366) to a 1156-pin design. The Intel Core i7 800-series processors have an on-board memory controller like the Core i7 900-series, however they also include a PCI Express controller. The Core i7 800-series also uses dual-channel memory rather than triple-channel memory. Intel's Core i7 800-series processors are designed for the Intel P55 Express chipset, and the entire processor and motherboard platform has been code named "Lynnfield".

Intel's Core i5 700-series is very similar to the Core i7 800-series. Both series of processors use the Intel P55 chipset, have on-board PCI Express and memory controllers, and are built for socket 1156.

The only real difference between the two lines of processors is that the Core i5 series has no support for HyperThreading, while all Core i7 processors do. HyperThreading allows a single physical processing core execute two threads simultaneously, which helps with massively parallel processing. The Core i5 700-series platform is also part of the "Lynnfield" code name.

If you're picking up one of the Core i7 800-series or Core i5 700-series of processors, remember that this change in socket has also meant that neither your old socket 775 or newer socket 1366 heatsink/fan cooler will work with Intel's socket 1156 processors or motherboards. Those who adopt Core i7 800-series and Core i5 700-series processors will need all new coolers or at least mounting adapters to attach their high-performance, third-party coolers.

PCSTATS discusses Intel's Lynnfield architecture next....

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Contents of Article: Intel Core i5 750
 Pg 1.  Intel Core i5 750 2.66GHz Socket 1156 Processor Review
 Pg 2.  Building a Core i5 PC system?
 Pg 3.  — Intel Core i5 / i7 Naming Confusions
 Pg 4.  Intel Lynnfield Processor Architecture Discussed
 Pg 5.  Core-by-Core System Power Draw
 Pg 6.  Overclocking Report and Test System Specs
 Pg 7.  CPU Benchmarks: Sysmark 2007
 Pg 8.  CPU Benchmarks: PCMark Vantage
 Pg 9.  32-Bit CPU Synthetic Benchmarks: Sandra 2009 Processor
 Pg 10.  32-Bit CPU Synthetic Benchmarks: Sandra 2009 Memory
 Pg 11.  32-Bit CPU Calculation Benchmarks: Super Pi
 Pg 12.  32-Bit CPU Calculation Benchmarks: wPrime2.0
 Pg 13.  32-Bit CPU Calculation Benchmarks: ScienceMark2.3
 Pg 14.  32-Bit CPU Rendering Benchmarks: Cinebench R10, Bibble 5
 Pg 15.  32-Bit CPU Rendering Benchmarks: POV-Ray
 Pg 16.  32-Bit CPU Rendering Benchmarks: SPECviewPerf 10
 Pg 17.  32-Bit CPU Synthetic Gaming Benchmarks: 3DMark Vantage
 Pg 18.  32-Bit CPU Synthetic Gaming Benchmarks: 3DMark 06
 Pg 19.  32-Bit CPU Gaming Benchmarks: Crysis
 Pg 20.  32-Bit CPU Gaming Benchmarks: FEAR
 Pg 21.  Core i5 - King of the mainstream?

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   12 / 12 / 2018 | 9:02AM
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