Intel Core i5-750 vs Intel Core i7-920

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Core i5-750 compared with Core i7-920

	IntelCore i5-750	IntelCore i7-920
Overview
Released
Released	September 2009	November 2008
Cores and clocks
Cores
Cores	4	4
Threads
Threads	4	8 (better)
Base clock
Base clock	2.66 GHz	2.66 GHz
Boost clock
Boost clock	3.2 GHz (better)	2.93 GHz
L3 cache
L3 cache	8 MB	8 MB
Cores
Cores	Four cores and four threads; Hyper-Threading is absent. TechRadar's exact Core i5-750 overclocking guide confirms the CPU multiplier is locked; base-clock overclocking remains possible.	Four cores with Hyper-Threading; eight simultaneous threads. PCStats confirms a locked CPU multiplier; base-clock overclocking is possible, so locked does not mean all overclocking is disabled.
Clocks
Clocks	Up to 3.20 GHz Turbo Boost. Intel's embedded product brief specifies 3.20 GHz with one or two active cores and 2.80 GHz with four; actual behaviour depends on workload, cooling and platform limits.	Intel's product brief gives up to 2.93 GHz single-core Turbo Boost. Intel's 17 November 2008 sale notice names the 920 and confirms immediate system and boxed retail availability.
Graphics and AI
Built-in graphics
Built-in graphics	No	No
Graphics
Graphics	No processor graphics; Intel's desktop comparison chart lists graphics as not applicable. A separate graphics solution is required.	No processor graphics; a separate graphics solution is required. Intel's desktop comparison chart lists graphics as not applicable.
Platform
Socket
Socket	LGA1156	LGA1366
Base power
Base power	95 W	130 W
Unlocked
Unlocked	No	No
Memory support
Memory support	Two channels of DDR3-1066/1333. Optional maximum memory capacity and bandwidth are omitted because the retired exact-model specification page could not be read.	Three channels of DDR3-1066 in Intel's exact-model product brief. A later Intel comparison chart incorrectly lists two channels; the original product brief is used here.
PCIe
PCIe	16 processor PCIe 2.0 lanes, configurable as one ×16 or two ×8 graphics links. A separate DMI link connects the processor to the chipset.	Intel's product brief describes X58 chipset PCIe 2.0 graphics connectivity, including two ×16 links. These are chipset connections, not CPU-integrated PCIe lanes. CPU-to-chipset QuickPath Interconnect runs at 4.8 GT/s for the 920.
Process
Process	45 nm; Lynnfield, based on the Nehalem architecture.	45 nm; Nehalem architecture.
Cooler
Cooler	LGA1156 platform, distinct from LGA775 and LGA1366. Intel's 8 September 2009 notice names the 750 and says the new processors and P55 chipset are available that day. Cooler inclusion and package temperature are omitted where maker evidence is unavailable.	Requires an LGA1366/X58 platform; incompatible with LGA775 motherboards. Intel's retired specification page could not be read, so optional package temperature and separate maximum-power values are omitted.