Feeds

The best memory config for a Core i7 CPU

All the options tested

Top 5 reasons to deploy VMware with Tegile

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.

Choosing a cloud hosting partner with confidence

More from The Register

next story
Heyyy! NICE e-bracelet you've got there ... SHAME if someone were to SUBPOENA it
Court pops open cans of worms and whup-ass in Fitbit case
SLURP! Flick your TONGUE around our LOLLIPOP – Google
Android 5 is coming – IF you're lucky enough to have the right gadget
Official: European members prefer to fondle Apple iPads
Only 7 of 50 parliamentarians plump for Samsung Galaxy S
Fujitsu CTO: We'll be 3D-printing tech execs in 15 years
Fleshy techie disses network neutrality, helmet-less motorcyclists
Space Commanders rebel as Elite:Dangerous kills offline mode
Frontier cops an epic kicking in its own forums ahead of December revival
VINYL is BACK and you can thank Sonos for that
The format that wouldn’t die is officially in remission
prev story

Whitepapers

Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
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.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Reducing the cost and complexity of web vulnerability management
How using vulnerability assessments to identify exploitable weaknesses and take corrective action can reduce the risk of hackers finding your site and attacking it.
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.