Qosmio

The Qosmio series (dynabook Qosmio in Japan) was Toshiba's consumer-marketed line of high performance desktop replacement laptops. The laptop was first released on July 25, 2004 as the E15-AV101 with a 1.7 GHz Intel Pentium M CPU, 512 megabytes of DDR SDRAM, and a 15-inch XGA 1024x768 screen. Toshiba's most powerful laptop has undergone many revisions, with focus shifting from high-end multimedia functionality to heavy gaming. The current line, the X70 series, was released in 2013, featuring an Intel Core i7 processor with up to 32 gigabytes of DDR3 SDRAM and an Nvidia GeForce GTX 770M as well as a 17.3-inch Full HD display.

History
The Toshiba Qosmio G35-AV650 was the first production notebook made available with an HD DVD-compatible drive. The Qosmio G35 line also functioned as a Digital Video Recorder as it contains an integrated TV tuner.

Focus for the Qosmio had shifted from full-fledged multimedia to high end gaming with high quality graphics and audio. This can be seen in the first Qosmio, the E15-AV101, which offered a 1.7 GHz Intel Pentium M 735 CPU, 512 megabytes of DDR SDRAM, a 15-inch XGA 1024x768 screen, and an Nvidia GeForce FX Go5200 with 64 megabytes of dedicated DDR video memory, all of which were relatively powerful for the time. The X500 had an Intel Core i7 processor with up to 6 gigabytes of DDR3 SDRAM as well as an 18.4 inch HD display powered by an Nvidia GeForce GTX 460M with 1.5 gigabytes of GDDR5 video memory. These components, on the other hand, are on the high end of the spectrum in performance. This original model launched in 2004 with an international marketing campaign. The campaign was featured in every major publication, as well as an ambitious digital campaign, one of the first for a major laptop release at that time.

F45 series
Released on February 7, 2007, the Toshiba F45 series was an upgraded line of F40 laptops with advertised features including Dolby Home Theater and a built-in subwoofer. The basic specs included an Intel Core 2 Duo T5450 Processor at 1.66 GHz, with 2 megabytes of L2 cache attached to a 64-bit 667 MHz FSB. It had 2 gigabytes of PC2-5300 DDR2 SDRAM. The built-in DVD drive supported "+/- R double layer" technology. The integrated graphics processor was the Mobile Intel GMA X3100 with 8-256 megabytes of video memory shared with the system memory, the screen was a 15.4-inch "TruBrite" display with a 1280x800 native resolution (WXGA), and hard drives were about 200 gigabytes in size (varied by model). 32-bit editions of Windows Vista Home Premium or Ultimate were normally shipped with the systems.


 * Toshiba F45 models include: AV410, AV411, AV411B, AV412, AV413, AV423 and AV425

X300 series
Released on January 4, 2009, the Qosmio X300 models offered not only HD DVD reading capabilities but also writing capabilities in either 15 gigabyte or 30 gigabyte capacities. External audio/video controls were also added to allow for one touch recording. A remote control is available to allow control within 20 feet of the laptop. The X305 is red with flames around its back. The X300 replaces the Satellite X200.
 * Toshiba Satellite X305 Models include: Q701, Q705, Q706, Q708, Q710, Q711, Q7113, Q712, Q715, Q720, Q7201, Q7203, Q725, Q7253, SP6828A, SP6828C, SP6828R. Models with both Core 2 Duo and Core 2 Quad processors were sold, along with the option of a GeForce 9700M GTS (individual cards; not SLI)

X500 series
Released on October 22, 2009, the X500 comes in many models, including: the X505-Q830, X505-Q832, X505-Q850, X505-Q870, X505-Q875, X505-Q880, and the X500-S1801. The X500 series introduced multi-touch capabilities to its touchpad. It supports Blu-ray playback, but only some models are able to write Blu-ray disks. The X500 had a much simpler black and red accented design than its predecessor, the X300.
 * Other X500 models include: X500-PQX33A, X500-Q840S, X500-Q895S, X500-Q900S, X500-Q930X, X500-S1801, X500-S1811, X500-S1812, X500-S1812X

X770 series
The Qosmio X770 series was introduced on June 14, 2011, followed by the X775 series.

X870 series
Released in 2012 was the Qosmio X870 series, with the specifications including a new "Ivy Bridge" Intel Core i7 processor, a Nvidia GeForce GTX 670M graphics processor with 3 gigabytes of video memory, a 17.3-inch 1920x1080 TN display, 16 gigabytes of DDR3 memory clocked at 1600MHz, and a 2 terabyte hard disk drive.

X70/75 series
Released in 2013 was the Qosmio X70-A series, with a Nvidia GeForce GTX 770M graphics processor designed for gaming and multimedia usage.

Subsequently, released in 2014 was the Qosmio X70-B series with a significantly less powerful GPU, an AMD Radeon R9 M265X.

Specifications
This section encompasses current models only:
 * Expandability
 * 2 DDR3 memory slots supporting up to 8GB
 * 5-in-1 Media Adapter supporting Secure Digital Card, Memory Stick, Memory Stick Pro, MultiMediaCard, and xD-Picture Card
 * ExpressCard/54
 * 1 each of VGA and HDMI ports

Issues
The Qosmio F10 and G10 series, both early models, were plagued with chipset issues. When a defective unit was under considerable load for an extended period of time, the video chipset on the board was known to fail, causing considerable interference on the display and/or complete motherboard failure.