Intel Core i7-3770K vs Intel Core i7-4790K

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Core i7-3770K compared with Core i7-4790K

	IntelCore i7-3770K	IntelCore i7-4790K
Overview
Released
Released	April 2012	June 2014
Cores and clocks
Cores
Cores	4	4
Threads
Threads	8	8
Base clock
Base clock	3.5 GHz	4 GHz
Boost clock
Boost clock	3.9 GHz	4.4 GHz (better)
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; Intel Turbo Boost 2.0 supported. The current maker page lists Transactional Synchronization Extensions as unsupported, superseding early review specifications.
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.	Maximum turbo is a single-core frequency; overclocking requires an appropriate motherboard and cooling. Intel publishes TDP without a separate maximum turbo-power figure.
Graphics and AI
Built-in graphics
Built-in graphics	Yes	Yes
Graphics
Graphics	Intel HD Graphics 4000; 650 MHz base, up to 1.15 GHz; three displays; Quick Sync Video.	Intel HD Graphics 4600; 20 execution units; 350 MHz base, up to 1.25 GHz; three displays; Quick Sync Video. HDMI up to 3840×2160 at 24 Hz; DisplayPort and eDP up to 3840×2160 at 60 Hz; VGA up to 1920×1200 at 60 Hz.
Platform
Socket
Socket	LGA1155	LGA1150
Base power
Base power	77 W	88 W
Unlocked
Unlocked	Yes	Yes
Memory support
Memory support	Up to 32 GB; two channels; DDR3-1333/1600; 25.6 GB/s maximum bandwidth; ECC not supported.	Up to 32 GB; two channels; DDR3-1333/1600 or DDR3L-1333/1600 at 1.5 V, as listed by Intel; 25.6 GB/s maximum bandwidth; ECC not supported.
PCIe
PCIe	PCIe 3.0; configurations up to 1×16, 2×8 or 1×8+2×4.	PCIe 3.0; 16 CPU lanes, configured as 1×16, 2×8 or 1×8+2×4.
Process
Process	22 nm; Ivy Bridge; 37.5 × 37.5 mm package; 67.4°C maximum case temperature, not junction temperature.	22 nm; Devil's Canyon, a Haswell refresh; 37.5 × 37.5 mm package; 74.04°C Tcase limit, not a junction-temperature limit. New polymer thermal interface and additional capacitors, described in Intel's Computex launch coverage and the exact-model reviews.
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.	Intel lists both ordinary boxed and explicitly fanless boxed SKUs; cooler contents should be checked for the particular package. Compatible Intel 8- and 9-series chipsets require the appropriate motherboard BIOS. Intel's June 2014 fact sheet confirms volume availability that month; the announcement itself is not used as the on-sale day.