Compare to most popular Processors
Product name Intel Core 2 Quad Q9550 / 2.83 GHz processor
Intel Core 2 Quad Q9550 / 2.83 GHz processor
Intel Core 2 Duo E8400 / 3 GHz processor
Intel Core 2 Duo E8400 / 3 GHz processor
Intel Core 2 Quad Q6600 / 2.4 GHz processor
Intel Core 2 Quad Q6600 / 2.4 GHz processor
Intel Core i7-965 Extreme Edition
Intel Core i7-965 Extreme Edition
Intel Core i7 920 (2.66GHz)
Intel Core i7 920 (2.66GHz)
Price range $309-409
from 11 stores
$164-219
from 13 stores
$189-245
from 15 stores
$1011-1286
from 13 stores
$293-373
from 14 stores
Review summary Info unavailable Info unavailable Info unavailable Thanks to an expensive new motherboard requirement, Intel's new Core i7 desktop processors will remain enthusiast and professional-level parts until more affordable complementary hardware comes out later next year. Speed never comes cheap, however, and if you're willing to spend for it now, you'll find yourself in possession of the fastest CPU on the market. Info unavailable
Release date March 6, 2008 January 24, 2008 January 11, 2007 November 3, 2008 November 25, 2008
Basic Specs 
Product Description Intel Core 2 Quad Q9550 / 2.83 GHz Processor Intel Core 2 Duo E8400 / 3 GHz Processor Intel Core 2 Quad Q6600 / 2.4 GHz Processor Intel Core i7 965 / 3.2 GHz Processor Intel Core i7 920 / 2.66 GHz Processor
Product Type Processor Processor Processor Processor Processor
Processor Type Intel Core 2 Quad Q9550 Intel Core 2 Duo E8400 Intel Core 2 Quad Q6600 Intel Core i7 965 Intel Core i7 920
Multi-Core Technology Quad-Core Dual-Core Quad-Core Quad-Core Quad-Core
64-bit Computing Yes Yes Yes Yes Yes
Compatible Processor Socket LGA775 Socket LGA775 Socket LGA775 Socket LGA1366 Socket LGA1366 Socket
Processor Qty 1 1 1 1 1
Clock Speed 2.83 GHz 3 GHz 2.4 GHz 3.2 GHz 2.66 GHz
Bus Speed 1333 MHz 1333 MHz 1066 MHz Info unavailable Info unavailable
Manufacturing Process 45 nm 45 nm 65 nm 45 nm 45 nm
Cache Memory L2 cache Advanced Smart Cache - 12 MB ( 2 x 6MB (6MB per core pair) ) L2 cache 6 MB L2 cache Advanced Smart Cache - 8 MB ( 2 x 4MB (4MB per core pair) ) L3 cache Advanced Smart Cache - 8 MB L3 cache Advanced Smart Cache - 8 MB
Features Intel Advanced Digital Media Boost , Intel 64 Technology , Intel Wide Dynamic Execution , Intel Trusted Execution Technology , Enhanced SpeedStep technology , Execute Disable Bit capability , Intel Virtualization Technology , Intel Advanced Smart Cache , Intel Smart Memory Access Enhanced Halt State (C1E) , Intel 64 Technology , Intel Thermal Monitor 2 , Intel Trusted Execution Technology , Enhanced SpeedStep technology , Execute Disable Bit capability , Intel Virtualization Technology Intel Advanced Digital Media Boost , Intel 64 Technology , Intel Wide Dynamic Execution , Enhanced SpeedStep technology , Execute Disable Bit capability , Intel Virtualization Technology , Intel Advanced Smart Cache , Intel Smart Memory Access Hyper-Threading Technology , Enhanced Halt State (C1E) , Intel 64 Technology , Intel Thermal Monitor 2 , Enhanced SpeedStep technology , Execute Disable Bit capability , Intel Virtualization Technology Hyper-Threading Technology , Enhanced Halt State (C1E) , Intel 64 Technology , Intel Thermal Monitor 2 , Enhanced SpeedStep technology , Execute Disable Bit capability , Intel Virtualization Technology
Compatible Slots 1 x Processor - LGA775 Socket 1 x Processor - LGA775 Socket 1 x Processor - LGA775 Socket 1 x Processor - LGA1366 Socket 1 x Processor - LGA1366 Socket
Manufacturer Warranty 3 years warranty 3 years warranty 3 years warranty 3 years warranty 3 years warranty
      
Product nameIntel Core 2 Quad Q9550 / 2.83 GHz processorIntel Core 2 Duo E8400 / 3 GHz processorIntel Core 2 Quad Q6600 / 2.4 GHz processorIntel Core i7-965 Extreme EditionIntel Core i7 920 (2.66GHz)
Price range$309-409
from 11 stores
$164-219
from 13 stores
$189-245
from 15 stores
$1011-1286
from 13 stores
$293-373
from 14 stores