| Remove from comparison | Remove | Remove | Remove | Remove | Remove |
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| Product name | |||||
| Price | $1,128.99 | $371.99 | Check Prices | $999.99 to $1,230.74 | $1,087.99 to $1,204.95 |
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| Release date | July 13, 2006 | July 13, 2006 | November 14, 2006 | November 12, 2007 | |
| 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. | The quad-core Core 2 Extreme QX6850 keeps the desktop CPU performance belt tied firmly around Intel's waist at a price that helps offset the lack of sizable performance gains. New products at the end of the year may outclass this new chip when they arrive, but for now, the QX6850 reigns supreme. |
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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 |
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 Intelligent Power Capability Intel Smart Memory Access |
| 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 cache Advanced Smart Cache - 8 MB ( 2 x 4MB (4MB per core pair) ) |
| Bus Speed |
1066 MHz |
1066 MHz |
1066 MHz |
1333 MHz |
1333 MHz |
| 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 |
| 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 |
Intel Core 2 Extreme QX6850 / 3 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 |
LGA775 Socket |
| Clock Speed |
2.93 GHz |
2.66 GHz |
2.66 GHz |
3 GHz |
3 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 |
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