Intel Core i7-3770K vs Intel Core i7-920

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

Core i7-3770K compared with Core i7-920

	IntelCore i7-3770K	IntelCore i7-920
Overview
Released
Released	April 2012	November 2008
Cores and clocks
Cores
Cores	4	4
Threads
Threads	8	8
Base clock
Base clock	3.5 GHz	2.66 GHz
Boost clock
Boost clock	3.9 GHz (better)	2.93 GHz
L3 cache
L3 cache	8 MB	8 MB
Cores
Cores	Four cores with Hyper-Threading; Intel Turbo Boost 2.0. TechRadar confirms the unlocked multiplier.	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	Maximum turbo is a single-core frequency. Intel announced systems available on 23 April and boxed processors later that month; the 29 April retail sale date comes from Ars Technica's update quoting Newegg.	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	Yes	No
Graphics
Graphics	Intel HD Graphics 4000; 650 MHz base, up to 1.15 GHz; three displays; Quick Sync Video.	No processor graphics; a separate graphics solution is required. Intel's desktop comparison chart lists graphics as not applicable.
Platform
Socket
Socket	LGA1155	LGA1366
Base power
Base power	77 W	130 W
Unlocked
Unlocked	Yes	No
Memory support
Memory support	Up to 32 GB; two channels; DDR3-1333/1600; 25.6 GB/s maximum bandwidth; ECC not supported.	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	PCIe 3.0; configurations up to 1×16, 2×8 or 1×8+2×4.	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	22 nm; Ivy Bridge; 37.5 × 37.5 mm package; 67.4°C maximum case temperature, not junction temperature.	45 nm; Nehalem architecture.
Cooler
Cooler	LGA1155 motherboard compatibility depends on chipset and firmware; Expert Reviews advises confirming older 6-series board support with the motherboard maker. Intel's current specifications give no separate maximum turbo-power figure.	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.