Listed below are some of the common Processor Numbers you encounter
 while choosing a desktop PC or a Laptop PC.

The Processor Numbers are not sorted by their number but their CPU speed
so you may have to browse till you find the your required number to view its details:

Intel® Core™ 2 Duo Mobile Processor | Intel® Core™ 2 Duo Desktop Processor | Intel® Core™ 2 Quad Desktop Processor

Intel® Core™ 2 Duo Mobile Processor
CPU Speed	Processor #	Cores	Bus Speed	Mfg Tech	Cache Size
2.93 GHz	T9800	2	1066 MHz	45 nm	6 MB
2.80 GHz	T9600	2	1066 MHz	45 nm	6 MB
2.66 GHz	T9550	2	1066 MHz	45 nm	6 MB
2.66 GHz	P9600	2	1066 MHz	45 nm	6 MB
2.60 GHz	T9500	2	800 MHz	45 nm	6 MB
2.60 GHz	T7800	2	800 MHz	65 nm	4 MB
2.60 GHz	T9500	2	800 MHz	45 nm	6 MB
2.53 GHz	P9500	2	1066 MHz	45 nm	6 MB
2.53 GHz	P8700	2	1066 MHz	45 nm	3 MB
2.53 GHz	T9400	2	1066 MHz	45 nm	6 MB
2.50 GHz	T9300	2	800 MHz	45 nm	6 MB
2.40 GHz	T7700	2	800 MHz	65 nm	4 MB
2.40 GHz	T8300	2	800 MHz	45 nm	3 MB
2.40 GHz	P8600	2	1066 MHz	45 nm	3 MB
2.40 GHz	SP9400	2	1066 MHz	45 nm	6 MB
2.33 GHz	T7600	2	667 MHz	65 nm	4 MB
2.26 GHz	SP9300	2	1066 MHz	45 nm	6 MB
2.26 GHz	P8400	2	1066 MHz	45 nm	3 MB
2.20 GHz	T7500	2	800 MHz	65 nm	4 MB
2.20 GHz	T5900	2	800 MHz	65 nm	2 MB
2.20 GHz	T7500	2	800 MHz	65 nm	4 MB
2.16 GHz	T7400	2	667 MHz	65 nm	4 MB
2.16 GHz	T5850	2	667 MHz	65 nm	2 MB
2.16 GHz	T7400	2	667 MHz	65 nm	4 MB
2.13 GHz	P7450	2	1066 MHz	45 nm	3 MB
2.10 GHz	T8100	2	800 MHz	45 nm	3 MB
2 GHz	T7300	2	800 MHz	65 nm	4 MB
2 GHz	T5750	2	667 MHz	65 nm	2 MB
2 GHz	T7200	2	667 MHz	65 nm	4 MB
2 GHz	T7300	2	800 MHz	65 nm	4 MB
2 GHz	T6400	2	800 MHz	45 nm	2 MB
2 GHz	T7250	2	800 MHz	65 nm	2 MB
2 GHz	P7350	2	1066 MHz	45 nm	3 MB
2 GHz	T5870	2	800 MHz	65 nm	2 MB
2 GHz	T5800	2	800 MHz	65 nm	2 MB
1.86 GHz	SL9400	2	1066 MHz	45 nm	6 MB
1.83 GHz	T5600	2	667 MHz	65 nm	2 MB
1.83 GHz	T5550	2	667 MHz	65 nm	2 MB
1.80 GHz	T7100	2	800 MHz	65 nm	2 MB
1.80 GHz	T5670	2	800 MHz	65 nm	2 MB
1.73 GHz	T5300	2	533 MHz	65 nm	2 MB
1.66 GHz	T5500	2	667 MHz	65 nm	2 MB
1.66 GHz	T5450	2	667 MHz	65 nm	2 MB
1.60 GHz	SL9300	2	1066 MHz	45 nm	6 MB
1.60 GHz	T5470	2	800 MHz	65 nm	2 MB
1.60 GHz	L7500	2	800 MHz	65 nm	4 MB
1.60 GHz	T5200	2	533 MHz	65 nm	2 MB
1.50 GHz	L7400	2	667 MHz	65 nm	4 MB
1.50 GHz	T5250	2	667 MHz	65 nm	2 MB
1.40 GHz	L7300	2	800 MHz	65 nm	4 MB
1.40 GHz	T5270	1	800 MHz	65 nm	2 MB
1.40 GHz	SU9400	2	800 MHz	45 nm	3 MB
1.33 GHz	U7600	2	533 MHz	65 nm	2 MB
1.33 GHz	L7200	2	667 MHz	65 nm	4 MB
1.20 GHz	U7500	2	533 MHz	65 nm	2 MB
1.20 GHz	U7600	2	533 MHz	65 nm	2 MB
1.20 GHz	SU9300	2	800 MHz	45 nm	3 MB
1.06 GHz	U7500	2	533 MHz	65 nm	2 MB
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Intel® Core™ 2 Duo Desktop Processor
CPU Speed	Processor #	Cores	Bus Speed	Mfg Tech	Cache Size	Package
2.66 GHz	E6700	2	1066 MHz	65 nm	4 MB	LGA775
2.40 GHz	E6600	2	1066 MHz	65 nm	4 MB	LGA775
2.13 GHz	E6400	2	1066 MHz	65 nm	2 MB	LGA775
1.86 GHz	E6300	2	1066 MHz	65 nm	2 MB	LGA775
1.80 GHz	E4300	2	800 MHz	65 nm	2 MB	LGA775
2 GHz	E4400	2	800 MHz	65 nm	2 MB	LGA775
2.13 GHz	E6420	2	1066 MHz	65 nm	4 MB	LGA775
1.86 GHz	E6320	2	1066 MHz	65 nm	4 MB	LGA775
2.40 GHz	E4600	2	800 MHz	65 nm	2 MB	LGA775
2.20 GHz	E4500	2	800 MHz	65 nm	2 MB	LGA775
3 GHz	E6850	2	1333 MHz	65 nm	4 MB	LGA775
2.66 GHz	E6750	2	1333 MHz	65 nm	4 MB	LGA775
2.33 GHz	E6550	2	1333 MHz	65 nm	4 MB	LGA775
2.33 GHz	E6540	2	1333 MHz	65 nm	4 MB	LGA775
2.60 GHz	E4700	2	800 MHz	65 nm	2 MB	LGA775
2.66 GHz	E7300	2	1066 MHz	45 nm	3 MB	LGA775
2.53 GHz	E7200	2	1066 MHz	45 nm	3 MB	LGA775
2.80 GHz	E7400	2	1066 MHz	45 nm	3 MB	LGA775
2.93 GHz	E7500	2	1066 MHz	45 nm	3 MB	LGA775
2.83 GHz	E8300	2	1333 MHz	45 nm	6 MB	LGA775
3.16 GHz	E8500	2	1333 MHz	45 nm	6 MB	LGA775
3 GHz	E8400	2	1333 MHz	45 nm	6 MB	LGA775
2.66 GHz	E8200	2	1333 MHz	45 nm	6 MB	LGA775
2.66 GHz	E8190	2	1333 MHz	45 nm	6 MB	LGA775
3 GHz	E8400	2	1333 MHz	45 nm	6 MB	LGA775
3.16 GHz	E8500	2	1333 MHz	45 nm	6 MB	LGA775
3.33 GHz	E8600	2	1333 MHz	45 nm	6 MB	LGA775
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Intel® Core™ 2 Quad Desktop Processor
CPU Speed	Processor #	Cores	Bus Speed	Mfg Tech	Cache Size	Package
3 GHz	Q9650	4	1333 MHz	45 nm	12 MB	LGA775
2.83 GHz	Q9550	4	1333 MHz	45 nm	12 MB	LGA775
2.83 GHz	Q9550S	4	1333 MHz	45 nm	12 MB	LGA775
2.66 GHz	Q9400	4	1333 MHz	45 nm	6 MB	LGA775
2.66 GHz	Q9450	4	1333 MHz	45 nm	12 MB	LGA775
2.66 GHz	Q6700	4	1066 MHz	65 nm	8 MB	LGA775
2.66 GHz	Q9400S	4	1333 MHz	45 nm	6 MB	LGA775
2.50 GHz	Q9300	4	1333 MHz	45 nm	6 MB	LGA775
2.50 GHz	Q8300	4	1333 MHz	45 nm	4 MB	LGA775
2.40 GHz	Q6600	4	1066 MHz	65 nm	8 MB	LGA775
2.33 GHz	Q8200S	4	1333 MHz	45 nm	4 MB	LGA775
2.33 GHz	Q8200	4	1333 MHz	45 nm	4 MB	LGA775
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