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Product name Intel Core 2 Quad Q9300 / 2.5 GHz processor
Intel Core 2 Quad Q9300 / 2.5 GHz processor
Intel Core 2 Extreme QX9650
Intel Core 2 Extreme QX9650
Intel Core 2 Duo E8400 / 3 GHz processor
Intel Core 2 Duo E8400 / 3 GHz processor
Intel Core 2 Quad Q9450 / 2.66 GHz processor
Intel Core 2 Quad Q9450 / 2.66 GHz processor
Intel Core 2 Quad Q6600 / 2.4 GHz processor
Intel Core 2 Quad Q6600 / 2.4 GHz processor
Price range $272-313
from 9 stores
$1052-1399
from 10 stores
$180
from 1 store
$329-419
from 11 stores
$189-417
from 6 stores
Review summary Info unavailable The CPU market is due for a lot of upheaval over the next 12 months, so you might be wise to wait for a clearer picture before plunking down $1,000 or so on Intel's new Core 2 Extreme QX9650 quad-core desktop processor. But if you want to claim ownership of the fastest multicore CPU around today, look no further. Info unavailable Info unavailable Info unavailable
Release date March 13, 2008 October 28, 2007 June 8, 2008 February 10, 2008 February 7, 2007
Basic Specs 
Product Description Intel Core 2 Quad Q9300 / 2.5 GHz Processor Intel Core 2 Extreme QX9650 / 3 GHz Processor Intel Core 2 Duo E8400 / 3 GHz Processor Intel Core 2 Quad Q9450 / 2.66 GHz Processor Intel Core 2 Quad Q6600 / 2.4 GHz Processor
Product Type Processor Processor Processor Processor Processor
Processor Type Intel Core 2 Quad Q9300 Intel Core 2 Extreme QX9650 Intel Core 2 Duo E8400 Intel Core 2 Quad Q9450 Intel Core 2 Quad Q6600
Multi-Core Technology Quad-Core Quad-Core Dual-Core Quad-Core Quad-Core
64-bit Computing Yes Yes Yes Yes Yes
Compatible Processor Socket LGA775 Socket LGA775 Socket LGA775 Socket LGA775 Socket LGA775 Socket
Processor Qty 1 1 1 1 1
Clock Speed 2.5 GHz 3 GHz 3 GHz 2.66 GHz 2.4 GHz
Bus Speed 1333 MHz 1333 MHz 1333 MHz 1333 MHz 1066 MHz
Manufacturing Process 45 nm 45 nm 45 nm 45 nm 65 nm
Cache Memory L2 cache Advanced Smart Cache - 6 MB L2 cache Advanced Smart Cache - 12 MB L2 cache 6 MB L2 cache Advanced Smart Cache - 12 MB ( 2 x 6MB ) L2 cache Advanced Smart Cache - 8 MB ( 2 x 4MB (4MB per core pair) )
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 Intel Advanced Digital Media Boost , Intel 64 Technology , Intel Wide Dynamic Execution , Enhanced SpeedStep technology , Streaming SIMD extensions 4 , 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 , Intel Trusted Execution Technology , Enhanced SpeedStep technology , Execute Disable Bit capability , Intel Virtualization Technology , Intel Smart Memory Access 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
Compatible Slots 1 x Processor - LGA775 Socket 1 x Processor - LGA775 Socket 1 x Processor - LGA775 Socket 1 x Processor - LGA775 Socket 1 x Processor - LGA775 Socket
Manufacturer Warranty Info unavailable 3 years warranty 3 years warranty 3 years warranty Info unavailable
      
Product nameIntel Core 2 Quad Q9300 / 2.5 GHz processorIntel Core 2 Extreme QX9650Intel Core 2 Duo E8400 / 3 GHz processorIntel Core 2 Quad Q9450 / 2.66 GHz processorIntel Core 2 Quad Q6600 / 2.4 GHz processor
Price range$272-313
from 9 stores
$1052-1399
from 10 stores
$180
from 1 store
$329-419
from 11 stores
$189-417
from 6 stores
 


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