S-Series (discontinued in 2012)

In April 2009, HP introduced the ProBook s-series (standard/essential) notebooks, which consisted of the Intel powered 4410s, 4510s, and 4710s (14", 15.6", and 17.3" screens, respectively) and the AMD powered 4415s and 4515s (14" and 15.6" screens, respectively).^[1][3] This was followed by the introduction of the 13.3" ProBook 4310s in June of the same year.^[4]
The s-series was updated in 2010 with Intel Core i3, i5, and i7 processors, a brushed aluminium case, chiclet keyboard, and multi-touch ClickPad.^[5] Updates to the line in 2012 included a new exterior aluminium design.^[6]

4x4xs

• ProBook 4340s
• ProBook 4341s
• ProBook 4440s
• ProBook 4441s
• ProBook 4540s
• ProBook 4740s
• ProBook 4445s
• ProBook 4446s
• ProBook 4545s

B-Series (discontinued in 2012)

The ProBook B-series was announced on October 13, 2009, replacing the previous HP Compaq B-series with similar design in early models. All models still have a CD drive bay, docking port, pointstick options, screen latches, draining holes, easy-replaceable battery with additional slice options, TPM chip, socketed CPU, WLAN options and 2 RAM slots.

Two AMD powered models were announced in 2009 — the 14" ProBook 6445b and the 15.6" ProBook 6545b;^[35] Their Intel powered counterparts were announced three months later as the 14" ProBook 6440b and the 15.6" ProBook 6540b.;^[36] and the next-year upgrade is an AMD-powered 6455b and 6555b, and Intel-based 6450b and 6550b.
The B-series design was updated in 2011 with the Intel-powered 6460b and 6560b, and the AMD-powered 6465b and in 2012 with the Intel-powered 6470b and 6570b, and the AMD-powered 6475b.^[6] The updated sibling EliteBook line had an additional magnesium frame under screen top lid, the keyboard LED-backlight, the aluminium bottom-cover, the 17" workstation version and the additional security options.

M-Series (discontinued in 2011)

HP launched the 5310m in September 2009 as a line of compact mid-range 12" and 13" ProBooks without CD-drive bay. The 5310m was enclosed by an aluminium and magnesium case, weighed under four pounds, and was less than an inch thick.^[37][38]
The M-series was updated in September 2010 with a 5320m, closely followed with the release of the 5330m in May 2011 which featured a dual-tone aluminium chassis and Beats Audio.^[4]

G-Series

HP launched the G0 series in 2013. The computers are enclosed in an aluminium and magnesium case. The G1 series succeeded in 2014.

The first digit is a class of laptop (4## — entry, 6## — mid-class models), second digit is a display size (#3# for 13.3", #4# for 14.1", #5# for 15.6" and #7# for 17.3"). The third is an additional mark, like a ##5 for AMD-based model.

G1

This line has low-end siblings (15.6" HP 350 G1^[42] and 14.1" HP 340 G1). The 4## models is entry line. and 6## is a mid-range models with aluminum and magnesium case.

More information Model, CPU ...

Model	CPU			RAM	Graphics	Storage	Screen		Weight (kg)
	Model	Cores	GHz				Size (in)	Resolution (pixels)
ProBook x360 11 G1 EE[43]	Intel Pentium N4200	4	1.1	4 GB	Intel HD Graphics 500	256 SSD	11.6	1366 x 768	Non-Touch	1.35
									Touch	1.45
ProBook 430 G1[44]	Intel Core i5-4200U	2	1.6		Intel HD Graphics 4400	500 HDD	13.3		1.6
ProBook 440 G1[45]	Intel Core i5-4200M		2.5		Intel HD Graphics 4600		14		2.1
ProBook 445 G1[46]	AMD A6-5350M		2.9		AMD Radeon HD 8450G	320 GB			1.9
ProBook 450 G1[47]	Intel Core i5-4200M		2.5		Intel HD Graphics 4600	500 GB	15.6		2.3
ProBook 455 G1[48]	AMD A8-4500M	4	1.9		AMD Radeon HD 8750M	720 GB
ProBook 470 G1[49]	Intel Core i5-4200M	2	2.5			500 GB or 1 TB	17.3	1600 x 900	2.87
ProBook 640 G1[50]					Intel HD Graphics 4600		14	1366 x 768	2
ProBook 645 G1[51]	AMD A6-4400M		2.7		AMD Radeon HD 7520G
ProBook 650 G1[52]	Intel Core i5-4200M		2.5		Intel HD Graphics 4600		15.6		2.32
ProBook 655 G1[53]	AMD A6 A6-4400M		2.7		AMD Radeon HD 7520G			1920 x 1080
Pro x2 410 G1[54]	Intel Core i5-4202Y	4	1.6		Intel HD Graphics 4200	256 SSD	11.6	1366 x 768	1.6
Pro x2 612 G1[55]	Intel Core i3-4012Y	2	1.5			128 HDD	12.5		0.95

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