Today Lenovo officially announces three new IdeaPad notebooks, although two of them have been in public already. The new notebooks consist of the IdeaPad U150, U550, and Y550p.

We had already been introduced to the U150 and U550, at least informally. The U150 is an 11.6-inch 16:9 notebook available with Intel’s Celeron, Pentium, and Core 2 Duo processors. To keep the weight down to around 3 lb and thickness less than an inch, you won’t find an optical drive on the U150. Overall it looks to be a smaller version of the U350 and priced in the same $599-$799 range.

The IdeaPad U550 has actually been available for purchase for the last few days at Lenovo.com, and as we knew it is a 15.6-inch 16:9 notebook. You’ll find Celeron, Pentium, Core 2 Solo, and Core 2 Duo processors in it, along with the option for ATI HD4330 512MB graphics. An optical drive is built-in, but they were still able to keep the weight down to 5.29 lb and a little over 1 inch thick.

The laptop we haven’t heard about yet is the Y550p. The ‘p’ moniker denotes high performance models in the ThinkPad line, and even though the IdeaPad U450p isn’t so high performance, the Y550p definitely is. Intel’s new quad-core Core i7 processor is the standard CPU, with the Turbo Boost feature I posted about previously. You’ll also find NVIDIA GeForce GT 240M graphics with 1GB VRAM, available Blu-ray drive, and a large 15.6-inch 16:9 LCD. The Y550p is a little larger at 1.45-inches thick and 6 lb., but that’s not a bad size for the powerful processor in a package that will retail for around $1399.

Hit the jump for the full tech specs and image gallery

Read other posts about the IdeaPad U150 or IdeaPad U550

IdeaPad Y550p

• Intel® Core™ i7 quad core processor with Intel Turbo Boost Technology
• Genuine Windows 7 Home Premium
• 15.6” High-Def (1366×768), 16:9 widescreen
• NVIDIA GeForce GT 240M 1GB / Intel integrated GMA X4500
• Up to 8GB DDR3 1066MHz Storage
• Up to 500GB (5400rpm) 9.5mm 2.5” SATA
• Tray in ODD (Rambo/BD COMBO)
• 2* 2Watt stereo speakers + 1* 2W sub-woofer with Dolby® Home Theater™ surround sound
• 802.11agn/bg Wi-Fi, 10/1000MB LAN, Bluetooth® (optional), embedded 3G (optional)
• 3* USB 2.0 ports, eSATA/USD combo, 1* 34mm Express Card slot, 1* mini-PCIe slot (WLAN), RJ45, VGA, Mic-In, Headphone, 1x 6-1 Multi-card Reader (SD,SD Pro/XD/MMC/MS,MS Pro), HDMI
• Integrated 1.3M web camera
• SlideNav touch-sensitive slide bar for easy desktop navigation between programs and shortcuts, and one-touch desktop wallpaper selection
• 2.75kg with battery
• 385x 255 x 26~37mm
• Approx. 4.5hrs (6-cell battery)

IdeaPad U550

• Intel® Core™2 Duo / Core™2 Solo / Pentium® / Celeron® processor
• Genuine Windows 7 Home Premium / Home Basic
• 15.6” High-Def (1366×768), 16:9 widescreen
• ATI Mobility Radeon™ HD4330 512MB/Intel® GMA 4500MHD integrated graphics
• Up to 8GB DDR3 1066MHz Storage
• Up to 500GB (5400rpm) 9.5mm 2.5″ SATA/Up to 256GB SSD
• DVD Recordable
• 2×1.5W stereo speakers with Dolby® Sound Room surround sound
• Ethernet 10/100/1000M, Wireless LAN, Intel® WiMAX/WiFi Link 5150 AGN (1×2), Intel® WiFi Link 5100 AGN (1×2), Lenovo b/g WLAN, Wireless WAN
• Kensington lock, 3xUSB, stereo headphone, built-in microphone, VGA, HDMI, RJ-45, 2xMini-PCIe, Wireless WAN SIM, 4-in-1 card reader (SD/MMC/MS/MS Pro), SIM
• Integrated 1.3M web camera
• Integrated Fingerprint Reader
• 2.4kg (5.29 lb) with 6-cell battery
• 377×251x24~29.4mm
• Approx. 6hr (6-cell battery)

IdeaPad U150

• Intel® Core™2 Duo / Pentium® / Celeron® processor
• Genuine Windows 7 Home Premium / Home Basic
• 11.6” High-Def (1366×768), 16:9 widescreen
• ATI Mobility Radeon™ HD4500 / Intel® GMA 4500MHD integrated graphics
• Up to 4GB DDR3 1066MHz Storage
• Up to 320GB (5400rpm) 9.5mm 2.5″ SATA/Up to 64GB SSD
• 2×1.5W stereo speakers with Dolby® Sound Room surround sound
• Ethernet 10/100/1000M, Intel® WiMAX/WiFi Link 5150 AGN (1×2), Intel® WiFi Link 5100 AGN (1×2), Lenovo Wireless b/g, Bluetooth®, Wireless WAN
• Kensington lock, 2xUSB, 1xUSB combo eSATA, stereo headphone, built-in microphone, VGA, HDMI, RJ-45, 2xMini-PCIe, Wireless WAN SIM, 4-in-1 card reader (SD/MMC/MS/MS Pro)
• Integrated 1.3M web camera
• Integrated Fingerprint Reader
• 1.35kg (2.98 lb) with 3-cell battery, 1.5kg (3.31 lb) with 6-cell battery
• 290×191.5×13.5~24.4mm (3-cell)/290×191.5×13.5~34.3 mm (6-cell)
• Approx. 7hr (6-cell battery)/3.5hr (3-cell battery)