Difference between revisions of "Intel Core 2 Duo (Merom)"

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The Intel 2 Core is the successor of the [[Intel Core Duo (Yonah)]] processor. Even if the name seems like a second version, the Core 2 Duo is "only" a mobile version of the desktop processor with the same name and not designed for mobile applications in the first place like its predecessor. The architecture is changed in many ways, which introduced EM64T, [[SIMD|SSSE3]] and improved the performance by up to 25 percent. The 667 MHz FSB versions are part of the "Napa"- and the 800MHz FSB versions of the "Santa Rosa"-platform. It is part of the hardware from both the Centrino Duo and Centrino Pro brands.
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The Intel 2 Core is the successor of the [[Intel Core Duo (Yonah)]] processor. Unlike the Yonah, the Merom was designed specifically with mobile applications in mind. The Merom introduced various architectural additions such as EM64T, [[SIMD|SSSE3]] and improved the performance by up to 25 percent. The 667 MHz FSB versions are part of the "Napa" platform, while the 800MHz FSB versions are part of the "Santa Rosa" platform. The chip is also part of the hardware from both the Centrino Duo and Centrino Pro brands.
  
 
==Features==
 
==Features==

Revision as of 05:51, 23 March 2008

The Intel 2 Core is the successor of the Intel Core Duo (Yonah) processor. Unlike the Yonah, the Merom was designed specifically with mobile applications in mind. The Merom introduced various architectural additions such as EM64T, SSSE3 and improved the performance by up to 25 percent. The 667 MHz FSB versions are part of the "Napa" platform, while the 800MHz FSB versions are part of the "Santa Rosa" platform. The chip is also part of the hardware from both the Centrino Duo and Centrino Pro brands.

Features

Available Types and ThinkPads featuring them

Standard Voltage

Nr. Frequency (MHz) L2 Cache FSB (MHz) VT core Voltage (V) TDP (W) ThinkPad Models
max. min. high low high freq low freq
T7800 2600 1000 4MB 800 yes 1.30  ? 35  ? T61p
T7700 2400 1000 4MB 800 yes 1.30  ? 35  ? R61, T61, T61p
T7600 2333 1000 4MB 667 yes 1.30 0.95 34 20 T60, T60p
T7500 2200 1000 4MB 800 yes 1.30  ? 35  ? R61, T61, X61
T7400 2166 1000 4MB 667 yes 1.30 0.95 34 20 T60, Z61t
T7300 2000 1000 4MB 800 yes 1.30 0.95 35  ? R61, T61, X61
T7200 2000 1000 4MB 667 yes 1.30 0.95 34 20 R60, T60, X60, Z61m, Z61t
T7100 1800 1000 2MB 800 yes  ?  ? 35  ? R61, T61
T5600 1833 1000 2MB 667 yes 1.30 0.95 34 20 R60, T60, X60, Z61t
T5500 1666 1000 2MB 667 no 1.30 0.95 34 20 R60, T60, X60, Z61m, Z61t

Low Voltage

Nr. Frequency (MHz) L2 Cache FSB (MHz) VT core Voltage (V) TDP (W) ThinkPad Models
max. min. high low high freq low freq
L7400 1500 1000 4MB 667 yes 1.2 0.9 17  ? X60s, X60 Tablet
L7500 1600 800 4MB 800 yes 1.1 0.9 17  ? X61s, X61 Tablet
L7700 1800 800 4MB 800 yes 1.1 0.9 17  ? X61s, X61 Tablet

Thermal Specifications

The maximum temperature for safe operation is 100°C.

The catastrophic thermal protection temperature is 125°C.

GCC Optimization Flags

Intel Compiler Optimization Flags

For the SPEC CPU 2006 benchmarks, Intel used the shorthand -fast, which translates into -O3 -ipo -static -no-prec-div -xP. However, the compiler also provides the flag -xT, which activates the optimization for Core 2 Duo and SSSE3 (instead of SSE3 only with -xP).

Note on Hyper-Threading

Note that as opposed to Pentium 4/NetBurst, current Core 2 do not support hyper-threading, and therefore there is usually no option in the BIOS to activate it. Refer to Intel's Hyper-Threading Technology for a list of hyper-threading capable CPU.

See also

Intel Core Solo (Yonah)

Intel Core Duo (Yonah)

External Links