What every programmer should know about memory, Part 1

What every programmer should know about memory, Part 1

Nobody has updated this article because, bar a few details, not a lot has changed. FSB is diagrams 2.1 and 2.2, while QPI/UPI is diagram 2.3. All that's changed is which systems fall into which diagram.

Similar applies to the discussion of DRAM access details - while the numbers have changed, the differences are minor; DDR4 is a change from DDR3 in the same way that DDR3 is a change from DDR4, and FB-DRAM is now nearly gone from the market.

However, beyond these details, the underlying technology remains the same as it was back in 2007. Similar applies to later parts (caches etc) - the numbers are changed, but the technology and its behaviour are not significantly different.