Intel Core i7-5820K vs Intel Core i7-5960X

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

Only show differences

Better figure, where one is clearly better

Share comparison

Core i7-5820K compared with Core i7-5960X

	IntelCore i7-5820K	IntelCore i7-5960X
Overview
Released
Released	August 2014	August 2014
Cores and clocks
Cores
Cores	6	8 (better)
Threads
Threads	12	16 (better)
Base clock
Base clock	3.3 GHz	3 GHz
Boost clock
Boost clock	3.6 GHz (better)	3.5 GHz
L3 cache
L3 cache	15 MB	20 MB (better)
Cores
Cores	Haswell-E; six cores with Hyper-Threading; unlocked multiplier and lack of integrated graphics confirmed by exact-model reviews	Haswell-E; 8 cores with Hyper-Threading. The unlocked multiplier is confirmed by the exact-model reviews.
Clocks
Clocks	–	Turbo Boost 2.0 up to 3.50 GHz. August release month follows PCWorld’s 29 August report that Intel was shipping the models and TechSpot’s same-day expected retail availability. Intel’s 29 August notice instead says the three SKUs will be available next week; an exact maker first-sale day is unresolved.
Graphics and AI
Built-in graphics
Built-in graphics	No	No
Graphics
Graphics	–	No processor graphics, confirmed by Intel’s exact-model comparison-chart row; a separate graphics solution is required.
Platform
Socket
Socket	LGA2011-v3	LGA2011-v3
Base power
Base power	140 W	140 W
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	No	No
Memory support
Memory support	Up to 64 GB; four channels; DDR4-1600/1866/2133; maximum bandwidth 68 GB/s; no ECC support	Up to 64 GB; four channels of DDR4-1600/1866/2133; maximum bandwidth 68 GB/s; no ECC.
PCIe
PCIe	28 CPU lanes; PCIe 3.0	40 CPU lanes; PCIe 3.0
Chipsets
Chipsets	X99 and LGA2011-v3, as distinguished by Intel's Core i7 comparison chart and exact-model reviews. August release month follows Intel's 29 August family availability notice and contemporary exact-model stock coverage; an exact maker-SKU first-sale day was not established.	X99 and LGA2011-v3, distinguished by Intel’s exact-model comparison chart and the reviews. Current ARK abbreviates the socket as FCLGA2011; this is not compatible with the older X79 LGA2011 platform.
Process
Process	22 nm; package size 52.5 × 45 mm	22 nm; Haswell-E. Package size 52.5 × 45.0 mm.
Cooler
Cooler	Intel explicitly excludes a fan and heatsink from the boxed product; a separate cooler is required	Intel explicitly excludes a fan and heatsink from the boxed product; a separate compatible cooler is required.