Chipmaker also announces new Gobi modem that supports all possible varieties of 40 MHz, 2-band aggregation or below

With large smartphones like the Nokia Oyj. (HEX:NOK1V) Lumia 929, the Sony Corp. (TYO:6758) Xperia Z1, the LG Electronics, Inc. (KSC:066570) G2, and the Samsung Electronics Comp., Ltd. (KSC:005930) Galaxy Note III flocking to Qualcomm Inc.'s (QCOMquad-core Snapdragon 800, tablet makers are thirsting for a little something extra.
Now Qualcomm has delivered, offering up a super-powered ARM chip dubbed the Snapdragon 805.  The title is deceptive as this chip packs enough improvements first to be almost a generational advance over the Snapdragon 800.
First, it packs the Adreno 420 -- a brand new GPU capable of supporting 4K ultra-high-definition video.  The Adreno 420 hardware accelerates 4K video capture via the Hollywood Quality Video (HQV) codec, and playback via the 4K HEVC (H.265) decode codec.
Panasonic Toughpad
Some tablets are starting to get 4K displays -- now Qualcomm's giving them the power to pair that display with 4K picture/video-taking. [Image Source: Panasonic]

Second, Qualcomm integrates feedback from the gyroscope sensor -- a sensor found in virtually all modern smartphones -- to implement a form of hardware accelerated image stabilization.  Qualcomm claims this enhancement is an industry first and it should be able to be combined with optical stabilization techniques to produce even more impressive results.
Snapdragon 800
Snapdragon's new chip packs a unique form of image stabilization, utilizing the gyroscope.

The signal processor can handle Gigapixels per second (Gpixel/s) of camera or video throughput.  Image quality at 4K will of course be somewhat limited by the size of the camera sensor used (with many OEMs, e.g. Samsung opting for undersized sensors), but between the GPU and signal processors onboard the Snapdragon 805, the processing side shouldn't be an issue.

Snapdragon 805

Third, there's a brand new core architecture -- the Krait 450 -- which is a modest step up from the Krait 400.  The processor bumps clock speeds to 2.5 GHz, up from the high of 2.3 GHz with the Krait 400-based Snapdragon 800.  The processor talks to the memory at 25.6 GB/s (12.8 GB/s per channel) -- allowing it to use upcoming DDR3L 1600 MHz chips.

And there's a new Gobi MDM9x35 modem, which supports a broad spectrum of 3G (ex. CDMA, GSM), advanced 3G (e.g HSPA+), LTE, and advanced LTE (2x2 MIMO carrier aggregation) offerings at various frequencies.  The Gobi MDM9x35 supports LTE at speeds up to 300 Mbps (Megabits per second).  OEM integrators can also opt for a slightly cheaper variant that features the Gobi MDM9x25, a Qualcomm modem released in February which supports a lower end implementations of carrier aggregations "only" compatible for speeds up to 150 Mbps.

Carrier aggregation

Carrier aggregation is a fascinating technology that promises to speed up user downloads on mobile devices dramatically, carrier infrastructure allowing.  Previously smartphones typically ferried voice and data off a single antenna tuned to a narrow band of spectrum.  With carrier aggregation a second antenna is added and can be tuned to a second band to split cellular traffic, giving greater throughput.  The new Gobi MDM9x35 modem is particularly special as it makes a pretty incredible claim to support all possible 2-band combinations for 20 MHz (40 MHz cumulative) bands and below, in terms of band combinations approved by the 3GPP standards organization.

Last, but not least, the entire chip is built on a 20 nm HPm (high performance mobile) process by Taiwan Semiconductor Manufacturing Comp., Ltd. (TPE:2330) (TSMC).  That should offering big power and heat savings over the 28 nm process used in the Snapdragon 200/400/600/800 Series chips.

Sources: Qualcomm [1], [2]

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