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Core i7-640LM specs

Series    Intel Core i7
Codename    Arrandale
Clock Rate    2130 – 2933 MHz
Front Side Bus    2500 MHz
Level 2 Cache    512 KB
Level 3 Cache    4096 KB
Number of Cores / Threads    2 / 4
Max. Power Consumption (TDP = Thermal Design Power)    25 Watt
Transistor Count    382+177 Million
Manufacturing Technology    32 nm
Die Size    81+177 mm2
Max. Temperature    105 °C
Socket    BGA1288
Features    Turbo Boost (2.93 GHz max), Hyper Threading, Enhanced Speed step, integrated GMA HD 266-566MHz
64 Bit    64 Bit support
Hardware Virtualization    VT-x, VT-d
Starting Price     $332 U.S.
Announcement Date    01/04/2010

Core i7-920XM specs

Series    Intel Core i7
Codename    Clarksfield
Clock Rate    2000 – 3200 MHz
Front Side Bus    2500 MHz
Level 1 Cache    256 KB
Level 2 Cache    1024 KB
Level 3 Cache    8196 KB
Number of Cores / Threads    4 / 8
Max. Power Consumption (TDP = Thermal Design Power)    55 Watt
Transistor Count    774 Million
Manufacturing Technology    45 nm
Die Size    296 mm2
Max. Temperature    100 °C
Socket    RPGA989
Features    2.5 GT/s DMI, Virtualization Technology, Execute Disable Bit, Enhanced Speed step Technology, Enhanced Halt State (C1E), 64, Turbo Boost, Hyper-Threading, Trusted Execution Technology
64 Bit    64 Bit support
Hardware Virtualization    Vt
Starting Price     $1054 U.S.
Announcement Date    09/23/2009

Core i7-3770K Specs

Series    Intel Core i7 (Desktop)
Codename    Ivy Bridge
Clock Rate    3500 – 3900 MHz
Level 2 Cache    1024 KB
Level 3 Cache    8192 KB
Number of Cores / Threads    4 / 8
Max. Power Consumption (TDP = Thermal Design Power)    77 Watt
Manufacturing Technology    22 nm
Max. Temperature    67.4 °C
Socket    FCLGA1155
Features    HD Graphics 4000 (650-1150 MHz), SSE 4.1/4.2, AVX, Trusted Execution, AES, Dual Channel Memory Controller DDR3-1600 (max 32GB)
64 Bit    64 Bit support
Hardware Virtualization    VT-x
Starting Price     $294 U.S.
Announcement Date    04/08/2012
Product Link (external)    Intel Core i7 (Desktop) 3770K

Core i7-3770K Benchmarks

Cinebench R10: Rendering Multiple CPUs 32Bit – 22190
Cinebench R10 – 22190