| Remove from comparison | Remove | Remove | Remove | Remove | Remove |
|---|---|---|---|---|---|
| Product name | |||||
| Price | $449 to $1,128 at 2 stores | $348 to $479 at 4 stores | $1,006 to $1,200 at 10 stores | $409 to $1,438 at 4 stores | $448 to $1,136 at 4 stores |
| CNET editors' rating |
4.0 stars
Excellent
|
4.5 stars
Spectacular
|
4.0 stars
Excellent
|
4.0 stars
Excellent
|
4.0 stars
Excellent
|
| Average user rating | 4.5 stars out of 2 reviews | 4.0 stars out of 27 reviews | 3.5 stars out of 6 reviews | 5.0 stars out of 4 reviews | 2.5 stars out of 1 review |
| Release date | July 13, 2006 | July 13, 2006 | November 02, 2008 | November 14, 2006 | July 16, 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. | 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. | 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 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. | Basic specs |
| Features | See What's the Same or What's different | ||||
| 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 |
Hyper-Threading Technology Enhanced Halt State (C1E) Intel 64 Technology Intel Thermal Monitor 2 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 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 |
L3 cache Advanced Smart Cache - 8 MB |
L2 cache Advanced Smart Cache - 8 MB ( 2 x 4MB (4MB per core pair) ) |
L2 cache Advanced Smart Cache - 8 MB ( 2 x 4MB (4MB per core pair) ) |
| Bus Speed |
1066 MHz |
1066 MHz |
Info unavailable |
1066 MHz |
1333 MHz |
| Compatible Slots |
1 x Processor - LGA775 Socket |
1 x Processor - LGA775 Socket |
1 x Processor - LGA1366 Socket |
1 x Processor - LGA775 Socket |
1 x Processor - LGA775 Socket |
| Manufacturing Process |
65 nm |
65 nm |
45 nm |
65 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 i7 965 / 3.2 GHz Processor |
Intel Core 2 Extreme QX6700 / 2.66 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 |
LGA1366 Socket |
LGA775 Socket |
LGA775 Socket |
| Clock Speed |
2.93 GHz |
2.66 GHz |
3.2 GHz |
2.66 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 |
Intel Core 2 Duo E6700 |
Intel Core i7 965 |
Intel Core 2 Extreme QX6700 |
Intel Core 2 Extreme QX6850 |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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