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Intel Core 2 Extreme X6800 comparison

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Product name
Price $986.03 $371.99 to $399.00 $771.41 to $1,195.00 $999.99 to $1,279.99 $184.99 to $280.64
CNET editors' rating
Average user rating
Release date July 13, 2006 July 13, 2006 November 14, 2006 November 12, 2007 March 27, 2008
The Bottom Line AMD's Athlon 64 FX line has worn the desktop CPU performance crown for over a year. The king is dead. Intel's new flagship Core 2 Extreme X6800 not only hands AMD a defeat on all of our benchmarks, but it's also a more efficient, better designed chip overall. Intel's Core 2 Duo E6700 offers the best price-to-performance ratio we've seen in a desktop chip. For half the cost of AMD's top-of-the-line chip, you get identical if not superior performance and better power efficiency. AMD surprised us last year with its completely dominant dual-core chips, but Intel regains the crown with Core 2 Duo. If you thought dual cores were over the top, get ready. Intel presents the Core 2 Extreme QX6700, a single CPU with four distinct processing cores. At $999, the first quad-core CPU will remain an enthusiast part for a while, but as a glimpse of the future, it's clear that clock speed is out and core counts are in. 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. AMD's new Phenom X4 9850 is overpriced and outclassed compared with its Intel-based quad-core competition. If PC vendors can use this chip to make cheap systems (as they did with older Phenoms), we might have nicer things to say, but as a DIY part at this price, we can't recommend AMD's latest quad-core CPU.
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Features
Features Intel 64 Technology
Enhanced SpeedStep technology
Execute Disable Bit capability
Intel Virtualization Technology
Intel 64 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
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
HyperTransport technology
AMD Virtualization
AMD Cool'n'Quiet Technology
Enhanced Virus Protection
Cache Memory L2 cache Advanced Smart Cache - 4 MB
L2 cache Advanced Smart Cache - 4 MB
L2 cache Advanced Smart Cache - 8 MB ( 2 x 4MB (4MB per core pair) )
L2 cache Advanced Smart Cache - 12 MB
L2 - 4 x 512 KB - L3 cache 2 MB
Bus Speed 1066 MHz
1066 MHz
1066 MHz
1333 MHz
Info unavailable
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 - Socket AM2+
Manufacturing Process 65 nm
65 nm
65 nm
45 nm
65 nm
Multi-Core Technology Dual-Core
Dual-Core
Quad-Core
Quad-Core
Quad-Core
Processor Qty 1
1
1
1
1
Product Description Intel Core 2 Extreme X6800 / 2.93 GHz Processor
Intel Core 2 Duo E6700 / 2.66 GHz Processor
Intel Core 2 Extreme QX6700 / 2.66 GHz Processor
Intel Core 2 Extreme QX9650 / 3 GHz Processor
AMD Black Edition AMD Phenom X4 9850 / 2.5 GHz Processor
64-bit Computing Yes
Yes
Yes
Yes
Yes
Product Type Processor
Processor
Processor
Processor
Processor
Compatible Processor Socket LGA775 Socket
LGA775 Socket
LGA775 Socket
LGA775 Socket
Socket AM2+
Clock Speed 2.93 GHz
2.66 GHz
2.66 GHz
3 GHz
2.5 GHz
Manufacturer Warranty 3 years warranty
3 years warranty
3 years warranty
3 years warranty
3 years warranty
Processor Type Intel Core 2 Extreme X6800
Intel Core 2 Duo E6700
Intel Core 2 Extreme QX6700
Intel Core 2 Extreme QX9650
AMD Phenom X4 9850
Full specifications Full specifications Full specifications Full specifications Full specifications Full specifications
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