Processor comparison chart

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Product name
Price $76 to $541 at 6 stores $990 to $1,472 at 2 stores $83 to $150 at 2 stores $16 to $70 at 4 stores
CNET editors' rating
Not yet rated
Editors' choice 4.0 stars Excellent
    Overall score: 8.7 (4.0 stars)
3.5 stars Very good
    Overall score: 7.7 (3.5 stars)
Not yet rated
Average user rating 4.5 stars out of 2 reviews 4.0 stars out of 13 reviews 4.5 stars out of 3 reviews 0 stars No reviews, write one!
Release date January 30, 2011 November 02, 2008 June 29, 2011 November 21, 2007
The Bottom Line 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. We recommend the AMD A8-3850 to mainstream desktop PC users in search of capable gaming power and multithreaded application performance.

Basic specs

Features See What's the Same or What's different
Bus Speed Info unavailable Info unavailable Info unavailable 1333 MHz
Features Intel Advanced Vector Extensions (AVX)
Integrated memory controller
Execute Disable Bit capability
Intel Flex Memory Access
Intel Fast Memory Access
Enhanced SpeedStep technology
Thermal Monitoring Technologies
Intel Turbo Boost Technology 2.0
Intel AES New Instructions (AES-NI)
Streaming SIMD extensions 4.1
Streaming SIMD extensions 4.2
Hyper-Threading Technology
Intel Virtualization Technology
Intel 64 Technology
Execute Disable Bit capability
Hyper-Threading Technology
Enhanced SpeedStep technology
Intel Virtualization Technology
Intel Thermal Monitor 2
Intel 64 Technology
Enhanced Halt State (C1E)
Demand Based Switching
Integrated memory controller
AMD64 technology
Intel I/O Acceleration Technology
Execute Disable Bit capability
Intel Virtualization Technology
Intel Thermal Monitor 2
Intel 64 Technology
Enhanced Halt State (C1E)
Demand Based Switching
Packaged Quantity 1
1
1
1
Compatible Slots 1 x Processor - LGA1155 Socket
1 x Processor - LGA1366 Socket
1 x Processor - Socket FM1
1 x Processor - LGA771 Socket
Manufacturing Process 32 nm
45 nm
32 nm
45 nm
Processor Qty 1
1
1
1
Integrated Graphics Intel HD Graphics 3000
Info unavailable AMD Radeon HD 6550D
Info unavailable
Product Description Intel Core i7 i7-2600K / 3.4 GHz Processor
Intel Core i7 Extreme Edition i7-965 / 3.2 GHz Processor
AMD
A series A8-3850 / 2.9 GHz Processor
Intel Xeon E5420 / 2.5 GHz Processor
64-bit Computing Yes
Yes
Yes
Yes
Product Type Processor
Processor
Processor
Processor
Compatible Processor Socket LGA1155 Socket
LGA1366 Socket
Socket FM1
LGA771 Socket
Clock Speed 3.4 GHz
3.2 GHz
2.9 GHz
2.5 GHz
Number of Cores Quad-Core
Quad-Core
Quad-Core
Quad-Core
Max Turbo Speed 3.8 GHz
3.46 GHz
Info unavailable Info unavailable
Processor Type Intel Core i7 i7-2600K 2
Intel Core i7 Extreme Edition i7-965
AMD
A series A8-3850
Intel Xeon E5420
Packaging Type Info unavailable FC-LGA8
Info unavailable Info unavailable
Manufacturer Warranty 3 years warranty
3 years warranty
Info unavailable 3 years warranty
Full specifications Full specifications Full specifications Full specifications Full specifications
Buying choices
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