Intel Core i7-3930K vs Intel Core i7-4960X

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Core i7-3930K compared with Core i7-4960X

	IntelCore i7-3930K	IntelCore i7-4960X
Overview
Released
Released	November 2011	September 2013
Cores and clocks
Cores
Cores	6	6
Threads
Threads	12	12
Base clock
Base clock	3.2 GHz	3.6 GHz
Boost clock
Boost clock	3.8 GHz	4 GHz (better)
L3 cache
L3 cache	12 MB	15 MB (better)
Cores
Cores	Six cores with Hyper-Threading; twelve threads. Fully unlocked multiplier, confirmed by Intel's exact-model brief and the reviews. VT-d is supported only by C2 stepping according to Intel.	Ivy Bridge-E; 6 cores with Hyper-Threading. The unlocked multiplier is confirmed by the exact-model reviews.
Clocks
Clocks	Turbo Boost 2.0 up to 3.80 GHz. First-sale day comes from Legit Reviews' 14 November 2011 report of the exact boxed processor in stock at Newegg, cross-checked with Puget Systems' same-day launch coverage; Intel's specification page gives Q4 2011.	Turbo Boost 2.0 up to 4.00 GHz. September availability follows contemporary Ivy Bridge-E store availability coverage and Expert Reviews’ 10 September exact-model review with a retail supplier and price. Intel gives Q3 2013; an exact maker first-sale day was not established.
Graphics and AI
Built-in graphics
Built-in graphics	No	No
Graphics
Graphics	No processor graphics; Intel's exact-model comparison-chart row lists graphics as not applicable. A separate graphics solution is required.	No processor graphics, confirmed by Intel’s exact-model comparison-chart row; a separate graphics solution is required.
Platform
Socket
Socket	LGA2011	LGA2011
Base power
Base power	130 W	130 W
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	No	No
Memory support
Memory support	Four channels of DDR3-1066/1333/1600; up to 51.2 GB/s, without ECC. Intel's later comparison chart incorrectly lists two channels; the original brief and current specification page both establish four.	Up to 64 GB; four channels of DDR3-1333/1600/1866; maximum bandwidth 59.7 GB/s; no ECC.
PCIe
PCIe	40 PCIe 2.0 lanes according to Intel's specification page.	40 CPU lanes; PCIe 3.0
Chipsets
Chipsets	–	X79 and LGA2011, confirmed by the exact-model reviews.
Process
Process	32 nm; Sandy Bridge-E. Package measures 52.5 × 45.0 mm; Intel states a 66.8°C maximum case temperature, not a junction-temperature rating.	22 nm; Ivy Bridge-E. Package size 52.5 × 45.0 mm.
Cooler
Cooler	Intel explicitly says the boxed processor has no fan or heatsink. Requires an LGA2011-compatible cooler and motherboard; Intel's product brief names the X79 platform.	Intel explicitly excludes a fan and heatsink from the boxed product; a separate compatible cooler is required.