µArch Code name Brand name Model (list) Frequency Cores/threads Max. memory speed
Nehalem (45nm) Lynnfield Core i5 i5-7xx 2.66–2.8 GHz 4/4 DDR3-1333
Core i7 i7-8xx 2.8–3.07 GHz 4/8
Xeon L34xx 1.86 GHz 4/4 or 4/8
X34xx 2.4–3.07 GHz
Westmere (32nm) Clarkdale Celeron G1xxx 2.26 GHz 2/2 DDR3-1066
Pentium G6xxx 2.80 GHz 2/2
Core i3 i3-5xx 2.93–3.33 GHz 2/4 DDR3-1333
Core i5 i5-6xx 3.2–3.6 GHz 2/4
Xeon L34xx 2.0–2.27 GHz 2/4 DDR3-1066
Product Name # of Cores Max Turbo Frequency Processor Base Frequency Cache Processor Graphics ‡
Intel® Core™ i7-860S 4 3.46 GHz 2.53 GHz 8 MB Intel® Smart Cache
Intel® Core™ i7-870 4 3.60 GHz 2.93 GHz 8 MB Intel® Smart Cache
Intel® Core™ i7-860 4 3.46 GHz 2.80 GHz 8 MB Intel® Smart Cache
Intel® Core™ i5-750 4 3.20 GHz 2.66 GHz 8 MB Intel® Smart Cache
Intel® Core™ i5-750S 4 3.20 GHz 2.40 GHz 8 MB Intel® Smart Cache
Intel® Core™ i5-760 4 3.33 GHz 2.80 GHz 8 MB Intel® Smart Cache
Intel® Core™ i7-870S 4 3.60 GHz 2.66 GHz 8 MB Intel® Smart Cache
Intel® Core™ i7-875K 4 3.60 GHz 2.93 GHz 8 MB Intel® Smart Cache
Intel® Core™ i7-880 4 3.73 GHz 3.06 GHz 8 MB Intel® Smart Cache
Intel® Xeon® X3430 4 2.80 GHz 2.40 GHz 8 MB Intel® Smart Cache
Intel® Xeon® X3440 4 2.93 GHz 2.53 GHz 8 MB Intel® Smart Cache
Intel® Xeon® X3450 4 3.20 GHz 2.66 GHz 8 MB Intel® Smart Cache
Intel® Xeon® L3426 4 3.20 GHz 1.86 GHz 8 MB Intel® Smart Cache
Intel® Xeon® X3460 4 3.46 GHz 2.80 GHz 8 MB Intel® Smart Cache
Intel® Xeon® X3470 4 3.60 GHz 2.93 GHz 8 MB Intel® Smart Cache
Intel® Xeon® X3480 4 3.73 GHz 3.06 GHz 8 MB Intel® Smart Cache
Intel® Core™ i5-660 2 3.60 GHz 3.33 GHz 4 MB Intel® Smart Cache Intel® HD Graphics for Previous Generation Intel® Processors
Intel® Core™ i5-661 2 3.60 GHz 3.33 GHz 4 MB Intel® Smart Cache Intel® HD Graphics for Previous Generation Intel® Processors
Intel® Core™ i5-670 2 3.73 GHz 3.46 GHz 4 MB Intel® Smart Cache Intel® HD Graphics for Previous Generation Intel® Processors
Intel® Core™ i3-540 2 3.06 GHz 4 MB Intel® Smart Cache Intel® HD Graphics for Previous Generation Intel® Processors
Intel® Core™ i5-650 2 3.46 GHz 3.20 GHz 4 MB Intel® Smart Cache Intel® HD Graphics for Previous Generation Intel® Processors
Intel® Core™ i3-530 2 2.93 GHz 4 MB Intel® Smart Cache Intel® HD Graphics for Previous Generation Intel® Processors
Intel® Core™ i5-680 2 3.86 GHz 3.60 GHz 4 MB Intel® Smart Cache Intel® HD Graphics for Previous Generation Intel® Processors
Intel® Core™ i3-550 2 3.20 GHz 4 MB Intel® Smart Cache Intel® HD Graphics for Previous Generation Intel® Processors
Intel® Core™ i5-655K 2 3.46 GHz 3.20 GHz 4 MB Intel® Smart Cache Intel® HD Graphics for Previous Generation Intel® Processors
Intel® Core™ i3-560 2 3.33 GHz 4 MB Intel® Smart Cache Intel® HD Graphics for Previous Generation Intel® Processors
Intel® Pentium® G6950 2 2.80 GHz 3 MB Intel® Smart Cache
Intel® Pentium® G6960 2 2.93 GHz 3 MB Intel® Smart Cache
Intel® Pentium® G6951 2 2.80 GHz 3 MB Intel® Smart Cache
Intel® Xeon® Processor L3406 2 2.53 GHz 2.26 GHz 4 MB Intel® Smart Cache