Intel Core 2 Duo
2. Core 2 Duo Line
- Conroe
 The first Intel Core 2 Duo processor cores, code-named Conroe,  are built on a 65 nm process and are   intended for  replacing  Pentium 4 and Pentium D series.   Intel claims that  the Conroe series provides 40% more performance at 40% less power,   compared to the Pentium D.  The Conroe processors are labeled as the E6600 and E6700 Core 2 Duo models,   with the E6600 clocked at 2.4 GHz and the E6700 clocked at 2.67 GHz. The family   has a 1066 MT/s front   side bus, 4 MB shared L2 cache, and 65 watts TDP. The E6600 and E6700 have 4MB L2 cache, while the   E6300 and E6400 versions have 2MB L2 cache.
The first Intel Core 2 Duo processor cores, code-named Conroe,  are built on a 65 nm process and are   intended for  replacing  Pentium 4 and Pentium D series.   Intel claims that  the Conroe series provides 40% more performance at 40% less power,   compared to the Pentium D.  The Conroe processors are labeled as the E6600 and E6700 Core 2 Duo models,   with the E6600 clocked at 2.4 GHz and the E6700 clocked at 2.67 GHz. The family   has a 1066 MT/s front   side bus, 4 MB shared L2 cache, and 65 watts TDP. The E6600 and E6700 have 4MB L2 cache, while the   E6300 and E6400 versions have 2MB L2 cache.
- Conroe XE
 This is currently, the top-of-the-line for Intel's CPU product line. It  replaces  the Pentium 4 Extreme Edition and the dual-core Pentium Extreme   Edition processors. Core 2 Extreme has a clock speed of 2.93 GHz and a 1066   MT/s FSB.   The TDP for this family is 75-80 watts. According to Intel, at full load the XE6800   does not exceed 45 °C (113 °F), and with SpeedStep enabled, the average   temperature of the CPU when idle is 25 °C.
This is currently, the top-of-the-line for Intel's CPU product line. It  replaces  the Pentium 4 Extreme Edition and the dual-core Pentium Extreme   Edition processors. Core 2 Extreme has a clock speed of 2.93 GHz and a 1066   MT/s FSB.   The TDP for this family is 75-80 watts. According to Intel, at full load the XE6800   does not exceed 45 °C (113 °F), and with SpeedStep enabled, the average   temperature of the CPU when idle is 25 °C.
Like the desktop Core 2 Duo, it has 4 MB of shared L2 cache available. This means that the only major difference between the regular Core 2 Duo and Core 2 Extreme is the clock speed. The good thing is that it comes with an unlocked multiplier, allowing good overclocking abilities and of course, underclocking to reduce overall temperature.
- Allendale
Allendale is a codename for the stripped down versions of the Conroe processors with only 2 MB of L2 cache. The E6300 (1.86 GHz) and E6400 (2.13 GHz), both have a 1066MT/s FSB.
Below you will find a table with all the Core2Duo CPU line and its main specs:
| Intel Core2 Duo Processor XE6800 | Intel Core2 Duo Processor E6700 | Intel Core2 Duo Processor E6600 | Intel Core2 Duo Processor E6400 | Intel Core2 Duo Processor E6300 | |
| Processor   Number | XE6800 | E6700 | E6600 | E6400 | E6300 | 
| Architecture | 65 nanometer technology | ||||
| L2   Cache | 4M | 4M | 4M | 2M | 2M | 
| L3   Cache | N/A | ||||
| Multiplier | 11x | 10x | 9x | 8x | 7x | 
| Clock   Speed | 2.93 GHz | 2.66 GHz | 2.40 GHz | 2.13 GHz | 1.86 GHz | 
| Front Side Bus   Speed | 1066 MHz | ||||
| Other Intel   Technologies | Intel EM64, 
            VTΒ, 
            Execute Disable BitΒ, 
            dual-core, 
            EIST | ||||
| Thermal Design  | 75W | 65W | |||
| Package | FC-LGA | ||||
| Chipset | Intel 975X Intel P965 | Intel 975X Intel P965 Intel 946PL Intel 946GZ Intel Q965 Intel Q963 Intel G965 | |||
| Slot/Socket   Type | LGA775 | ||||
| Pin   Count | 775-land | ||||
| sSpec   Number | SL9S5 | SL9S7 | SL9S8 | SL9S9 | SL9SA | 
- Compatibility
As the above table shows, all Core2Duo series are the Socket LGA775. However, not every motherboard is compatible. Supporting chipsets besides Intel's (975X, P/G/Q965, Q963, 946GZ/PL) are:
- ATI's Radeon Xpress 200, RD600 and RS600
- NVidia's nForce 4 SLI Intel Edition and nForce 570/590 Intel Edition
- VIA's PT880/PT880 Ultra, PT890, PM880 and PM890.
Keep in mind that older motherboards may not support the Conroe due to the fact that it requires a newer voltage regulator module (VRM), the VRM 11.
 
							 
 
 
 
 
 
 
 
 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	