Bookmark and Share


Despite of the reports, Intel Corp.’s Core i7 microprocessor not only has fully-functional memory controller, but, in fact, does support memory clock-speeds well beyond the official specifications.

“We announced certain specs on Intel Core i7 and we meet those specs. […] The way we look at DDR3 1600MHz [PC3-12800] is that it is supported by Intel's Extreme motherboard. The CPU doesn't officially support it, but as we have all seen, it works fine for anyone who seems to try it. Of course, a wide range of third party Core i7 mainboards support DDR3 1600 and beyond as well,” said George Alfs, a spokesperson for Intel.

On Wednesday reports emerged that Intel Core i7 microprocessor powered by Nehalem micro-architecture have “broken” memory controllers that do not support DDR3 memory that works at 1333MHz and beyond. The reports failed to report that triple-channel PC3-8500 (DDR3 1066MHz) provides peak bandwidth of almost 25.6GB/s, well enough for modern central processing units and quite higher than a dual-channel PC3-10600 (DDR3 1333MHz) controller can provide at the peak (21.3GB/s).

In fact, a lot of memory module manufacturers not only offer triple-channel DDR3 memory modules for Intel Core i7 microprocessors that are capable of operating at 1333MHz or 1600MHz, but also at 2000MHz (PC3-16000), which is almost two times higher that Intel’s official specification for the Core i7.

In reality, DDR3 memory specification for 2000MHz (2GHz) has not been defined yet, which is why the official support for such memory speed is unlikely. Nevertheless, Intel’s memory controllers can support memory speeds beyond those officially defined by JEDEC thanks to the eXtreme memory profiles (XMP) technology that forces certain frequencies.

Tags: Intel, Core, DDR3


Comments currently: 2
Discussion started: 05/17/09 10:16:47 AM
Latest comment: 05/18/09 11:32:09 AM


Well do the math intel 2000MHz is only 66,7% better than 1333MHz. Not 100%. And it's done by overclocking. what fu*king losers.

First kittens are always served drowned in deep water. New architecture -- new problems, we all knew that.
0 0 [Posted by: OmegaHuman  | Date: 05/17/09 10:16:47 AM]

Actually, the standard memory clock speed on a Core i7 system is 1066 MHz per channel, not 1333MHz, as the user above assumed. Therefore, 2000 MHz DDR-3 RAM would run at about 88% faster than this base speed specification.
0 0 [Posted by: Starman80  | Date: 05/18/09 11:32:09 AM]


Add your Comment

Related news

Latest News

Monday, July 21, 2014

12:56 pm | Microsoft to Fire 18,000 Employees to Boost Efficiency. Microsoft to Perform Massive Job Cut Ever Following Acquisition of Nokia

Tuesday, July 15, 2014

6:11 am | Apple Teams Up with IBM to Make iPhone and iPad Ultimate Tools for Businesses and Enterprises. IBM to Sell Business-Optimized iPhone and iPad Devices

Monday, July 14, 2014

6:01 am | IBM to Invest $3 Billion In Research of Next-Gen Chips, Process Technologies. IBM to Fund Development of 7nm and Below Process Technologies, Help to Create Post-Silicon Future

5:58 am | Intel Postpones Launch of High-End “Broadwell-K” Processors to July – September, 2015. High-End Core i “Broadwell” Processors Scheduled to Arrive in Q3 2015

5:50 am | Intel Delays Introduction of Core M “Broadwell” Processors Further. Low-Power Broadwell Chips Due in Late 2014