Feeds

The best memory config for a Core i7 CPU

All the options tested

Beginner's guide to SSL certificates

When Intel launched Core i7, the integration of the memory controller in the CPU core marked a major change from the Core 2 architecture. Intel was relatively slow off the mark in this regard: AMD moved the memory controller from the chipset to the CPU die in 2003 when it launched the Opteron.

Core i7 Exteme

Intel's Core i7: the first Core with an on-board memory controller

Since then we've seen a dual-channel 1066MHz DDR 2 memory controller in AMD’s Opteron, Athlon 64 and Phenom processors, and this has been updated in the latest models of Phenom II and Opteron with the addition of a dual-channel 1333MHz DDR 3 controller.

Intel took a different approach with Core i7 and used a triple-channel DDR 3 controller to increase the memory bandwidth without requiring high memory clock speeds.

The chip giant stipulated a surprisingly low default memory voltage of 1.5V. Although the Jedec standard for DDR 3 includes an operating voltage of 1.5V, it's common to find that a higher voltage of 1.7V or 1.8V is necessary for the sort of clock speeds that we're used to seeing with Core 2 and Phenom II.

Motherboard manufacturers felt it was necessary to warn customers that raising the memory voltage above 1.65V could damage a Core i7 processor, although we see that they continue to offer overclocking options that would take the memory way beyond 2.4V.

Intel Core i7 CPUs

It took a few months for low-voltage Core i7 DDR 3 memory to start rolling in from the manufacturers and naturally those kits contain three modules of memory rather than the traditional pack of two.

Intelligent flash storage arrays

More from The Register

next story
Trousers down for six of the best affordable Androids
Stylish Googlephones for not-so-deep pockets
Fujitsu CTO: We'll be 3D-printing tech execs in 15 years
Fleshy techie disses network neutrality, helmet-less motorcyclists
Intel's LAME DUCK mobile chips gobbled by CASH COW
Chipzilla won't have money-losing mobe unit to kick about anymore
First in line to order a Nexus 6? AT&T has a BRICK for you
Black Screen of Death plagues early Google-mobe batch
Ford's B-Max: Fiesta-based runaround that goes THUNK
... when you close the slidey doors, that is ...
prev story

Whitepapers

10 ways wire data helps conquer IT complexity
IT teams can automatically detect problems across the IT environment, spot data theft, select unique pieces of transaction payloads to send to a data source, and more.
Why CIOs should rethink endpoint data protection in the age of mobility
Assessing trends in data protection, specifically with respect to mobile devices, BYOD, and remote employees.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Business security measures using SSL
Examines the major types of threats to information security that businesses face today and the techniques for mitigating those threats.