Microsoft announced at CES-2011 that its next generation Windows PC platform will run on ARM architectures. NVIDIA, Qualcomm and Texas Instruments were named as key ARM silicon partners. We think this is good news for stand-alone ARM applications processor vendors such as Texas Instruments (TI) and throws the company a lifeline at a time when the market is moving towards integrated solutions.

By our estimates, the market for stand-alone applications processors in smartphones contracted from 70 percent in 2007 to just under 30 percent in 2009. Vendors such as Qualcomm are driving the baseband-integrated applications processor market and these integrated processors are increasingly gaining acceptance in the smartphone market. The integrated approach is currently popular in the low-to-mid range smartphones but is gaining traction in the high-end as well lately.

Microsoft's decision to port the Windows PC platform to ARM architectures changes the market dynamics dramatically. However, it's too early to tell what impact it will have on Intel as Microsoft hasn't revealed any timeline for these new products. ARM hasn't yet revealed its 64-bit architecture and current generation ARM processors also cannot support graphics computing APIs such as OpenCL. It will take at least another 18-24 months for Microsoft to reengineer its platform for ARM architectures and to build a software ecosystem around it. This should give enough time for Intel to bring power-efficient processors to the market. Intel is expected to feature in Nokia's MeeGo smartphones and tablets in 2012 which we think would be a great psychological boost to counter ARM-based processor vendors.

The likely specs for Windows on ARM architectures are:

• CPU: Dual-core / Quad-core ARM Cortex-A9; GPU: ARM Mali-400 / Third-party GPU

• CPU: Multi-core ARM Cortex-A15; GPU: ARM Mali T-604 / Third-party GPU (Most likely configuration and leading chip vendors such as TI, NVIDIA and Samsung were already announced as licensees of Cortex-A15 cores)

• Custom ARM processor designed by Microsoft and its hardware partners

This move is a good news for NVIDIA, Qualcomm and TI as it opens up new opportunities. Qualcomm already has customer relationships with top PC vendors and is expected to leverage them to expand into the Windows PC ecosystem. This move equally helps the stand-alone applications processor vendors to revitalize their businesses and to compete for higher volume. Broadcom, ST-Ericsson, Samsung, Renesas, Marvell and Freescale could also potentially feature as future Microsoft's partners.

We believe diversified device and OS landscape favors chip vendors as they can avoid the risk of being sidelined by powerful vendors. With Microsoft's support, ARM chipset vendors can now look forward to new markets that were unavailable to them previously.

Mobile phone applications processors power today's smartphone apps and increasingly phones are promoted as packing "1GHz processors" or even "dual-cores".

Last week we published our smartphone applications processor market share data and by our estimates global applications processor revenue reached $1.84 billion in 1H 2010, up 60 percent over the same period the prior year, primarily thanks to the growth in smartphones. The increase in the smartphone market is real and it has been reflected in silicon vendors' revenues and shipments as many players are re-positioning themselves to tap into this growth. The battle between the baseband-integrated applications processor vendors and stand-alone applications processor vendors continues to fragment the market.

Here are some top-level insights from our quarterly smartphone applications processor market share tracker for 1H 2010:

• In just three years, the market for stand-alone apps processors has shrunk from around 72 percent of the total apps processor market to just 32 percent in unit terms in 1H 2010.

• Qualcomm led the overall smartphone applications processor market with 35 percent revenue share, thanks to its early-mover advantage in the Android ecosystem. Qualcomm's integrated applications processors, which combine advanced air interface technology and applications processing capability, are increasingly gaining acceptance in the smartphone market. Qualcomm's smartphone applications processor unit shipment share increased from just 3 percent in 2007 to 19 percent in 1H 2010.

• Texas Instruments (TI) led the market in unit terms with the help of its legacy Nokia relationship. TI ranked number two in the stand-alone applications processor category with 24 percent revenue share. We believe much of the TI's future growth depends on the traction for its OMAP4 series applications processors and it may prove difficult for the company if it fails to line up big customers for its OMAP4 series processors in 2011.

• Samsung's relationships with Apple and Samsung helped the company to reach number one in stand-alone category and number three overall in the smartphone apps processor market in revenue terms. Samsung is set to continue its momentum into 2011 with the help of Apple and Samsung.

• Marvell ranked number four in both revenue terms and unit shipment terms on the strength of its relationship with RIM. Marvell's ARMADA 618 / 628 high-performance processors are expected to be adopted by RIM for its smartphone and tablet products in 2011.

• Qualcomm, Texas Instruments, Samsung, Marvell, Renesas and ST-Ericsson together accounted for 98 percent of total smartphone applications processor unit shipments in 1H 2010.

Looking forward, we expect new players such as NVIDIA, Intel, Broadcom and MediaTek to attack the high-growth smartphone market with focused efforts in 2011. We also expect the stand-alone applications processor vendors to fight back with high-performance dual-core processors in 2011 which could potentially increase their value share in 2011.

- Sravan Kundojjala