iMac ( 27-inch, Late 2009)
imac mid 2011
2.5GHz Intel Core i5 quad core processor
Based on Intel’s Sandy Bridge microarchitecture, the processors integrate the CPU, cache, and memory controller on one chip, allowing for fast data access over fewer buses. Each iMac has 6MB of shared L3 cache and support for Intel’s Turbo Boost 2.0, which allows the processor to automatically speed up cores when needed.
referenced from here
Intel(R) Core(TM) i7 CPU 870 @ 2.93GHz
iMac of main lab.
2.93 GHz Intel Core i7