Multiple choice technology ISTANBUL is codename of a microprocessor from which company? INTEL IBM AMD SUN Micro Systems Reveal answer Fill a bubble to check yourself C Correct answer Explanation Istanbul was AMD's codename for their quad-core Opteron processors released in 2009. It was based on the K10 microarchitecture. Intel and IBM used different codenames for their processors (e.g., Intel used Nehalem, IBM used Power6).