Intel Core i5-6440HQ

The Intel Core i5-6440HQ is a quad-core processor based on the Skylake architecture, that has been launched in September 2015. In addition to four CPU cores (no Hyper-Threading support) clocked at 2.6 - 3.5 GHz (4 cores: max. 3.1 GHz, 2 cores: max. 3.3 GHz), the chip also integrates an HD Graphics 530 GPU and a dual-channel DDR4-2133/DDR3L-1600 memory controller. The CPU is manufactured using a 14 nm process with FinFET transistors.

Architecture

Skylake replaces both Haswell and Broadwell and brings the same microarchitecture in every TDP class from 4.5 to 45 W. The extensive improvements of the Skylake design include increased out-of-order buffers, optimized prefetching and branch prediction as well as additional performance gains through Hyper-Threading (if supported). Overall, however, performance per clock has been increased by only 5 to 10 percent (compared to Haswell) respectively under 5 percent (compard to Broadwell), which is quite modest for a new architecture ("Tock").

Performance

With up to 4 threads under load, the Core i5-6440HQ performs roughly on par with the Core i7-6700HQ or Core i7-4720HQ (Haswell). However, the Core i7 benefit from Hyper-Threading (up to 25 - 30 percent performance boost) in extensively parallelized software, whereas the Core i5 don't support this feature.

Nevertheless, even the most demanding applications and excessive multitasking are handled easily.

Graphics

The integrated graphics unit called HD Graphics 530 represents the "GT2" version of the Skylake GPU (Intel Gen. 9). The 24 Execution Units, also called EUs, are clocked at 350 - 950 MHz and offer a performance about 20 percent above the old HD Graphics 4600. Games of 2015 can thus be played smoothly in low or medium settings. For more information about performance and features, check our page for the HD Graphics 530.

Power Consumption

Specified at a TDP of 45 W (including CPU, GPU and memory controller), the CPU is best suited for bigger notebooks 15-inches in size and above. Optionally, the TDP can be lowered to 35 watts (cTDP down), reducing both heat dissipation and performance.

Series	Intel Core i5
Codename	Skylake
Series: Core i5 Skylake Intel Core i5-6440HQ « 2.6 - 3.5 GHz 4 / 4  6 MB L3 Intel Core i5-6350HQ 2.3 - 3.2 GHz 4 / 4  6 MB L3 Intel Core i5-6300HQ 2.3 - 3.2 GHz 4 / 4  6 MB L3 Intel Core i5-6287U 3.1 - 3.5 GHz 2 / 4  4 MB L3 Intel Core i5-6267U 2.9 - 3.3 GHz 2 / 4  4 MB L3 Intel Core i5-6360U 2 - 3.1 GHz 2 / 4  4 MB L3 Intel Core i5-6300U 2.4 - 3 GHz 2 / 4  3 MB L3 Intel Core i5-6260U 1.8 - 2.9 GHz 2 / 4  4 MB L3 Intel Core i5-6198DU 2.3 - 2.8 GHz 2 / 4  3 MB L3 Intel Core i5-6200U 2.3 - 2.8 GHz 2 / 4  3 MB L3
Clock Rate	2600 - 3500 MHz
Level 1 Cache	256 KB
Level 2 Cache	1 MB
Level 3 Cache	6 MB
Number of Cores / Threads	4 / 4
Power Consumption (TDP = Thermal Design Power)	45 Watt
Manufacturing Technology	14 nm
Die Size	122 mm2
Max. Temperature	100 °C
Socket	BGA
Features	Dual-Channel DDR3L-1600/DDR4-2133 Memory Controller, AVX, AVX2, Quick Sync, Virtualization, AES-NI, vPro, TXT
GPU	Intel HD Graphics 530 (350 - 950 MHz)
64 Bit	64 Bit support
Architecture	x86
Starting Price	$250 U.S.
Announcement Date	09/01/2015
Product Link (external)	Intel Core i5 6440HQ

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