The MacBook Pro "Core i7" 2.66 15-Inch (Mid-2010) is powered by
a 32 nm, dual-core 2.66 GHz Intel "Core i7" I7-620M (Arrandale) processor,
with dedicated 256k level 2 cache for each core and a 4 MB shared level 3 cache.

This system also supports "Turbo Boost"
-- which "automatically boosts the processor speed based on workload" up to 3.33 GHz for this model
-- and "Hyper Threading"
-- which allows the system to recognize four "virtual cores" or "threads."

By default, it was initially configured with
8 GB of 1066 MHz DDR3 SDRAM (PC3-8500) installed in pairs (two 2 GB modules),
a 500 GB Serial ATA (5400 RPM) hard drive,
an 8X DL "SuperDrive",
and dual graphics processors
-- a NVIDIA GeForce GT 330M with 512 MB of dedicated GDDR3 memory and
-- Intel HD Graphics with 256 MB of RAM shared with the system
-- that Mac OS X automatically switches between for better graphics performance and better battery life, respectively, depending on application use.

The standard configuration of this model has an LED-backlit 15.4" widescreen TFT active-matrix "glossy" display (1440x900 native resolution).

Connectivity includes
AirPort Extreme (802.11a/b/g/n),
Bluetooth 2.1+EDR,
Gigabit Ethernet,
a Firewire "800" port,
two USB 2.0 ports,
optical digital/analog audio in/out,
a "Mini DisplayPort" that supports an external display at 2560x1600 (it also passes an audio signal), and
an SD card slot. It lacks an ExpressCard/34 slot.

This model uses a "Unibody" aluminum case design
-- milled from a single piece of aluminum
-- and has a backlit keyboard, a new "no button" glass "inertial" multi-touch trackpad, and
a non-swappable battery design.

Compared to its predecessor, this model has a very similar external enclosure, but an enhanced trackpad, and the same connectivity, except for the enhanced audio passing Mini DisplayPort. Internally, however, it has a substantially different architecture with a faster "Core i7" processor and faster graphics as well, although it shares the same memory. Battery life is improved too.

Please note that stock images are used