Cur­rent Socs

Electronics For You - - Chips -

TI OMAP3430

TI OMAP3430 fea­tures an ARM Cor­tex A8 pro­ces­sor clocked at 600 MHZ. ARM Cor­tex A8 pro­ces­sor is based on the ARMV7 ar­chi­tec­ture and is claimed to scale in speed from 600 MHZ to greater than 1 GHZ. In fact, many peo­ple run hacked ker­nels where the pro­ces­sor is over­clocked from 600 MHZ to 1.15 MHZ. The down­side, how­ever, is that the SOC uses a lot of power as its clock gets scaled up.

This pro­ces­sor also sup­ports a su­per-scalar mi­croar­chi­tec­ture with NEON tech­nol­ogy for SIMD pro­cess­ing.

Sam­sung Hum­ming­bird 1GHZ

Sam­sung Hum­ming­bird too is based on the ARM Cor­tex A8 ar­chi­tec­ture, al­beit at a smaller 45nm process than the TI OMAP 3430. It was jointly de­vel­oped along with In­trin­sity. In­trin­sity tweaked the CPU by trim­ming in­ef­fi­cien­cies in the way logic gates are used by us­ing 1-of-n domino logic (NDL). Due to this, the Hum­ming­bird CPU de­liv­ers not only high me­dia and data crunch­ing per­for­mance in mo­bile de­vices but low­ered power con­sump­tion as well.

Hum­ming­bird comes with 32 kb of both data and in­struc­tion cache, a vari­able­size L2 mem­ory cache and the ARM NEON mul­ti­me­dia ex­ten­sion. This SOC fea­tures a Pow­ervr SGX 540 GPU.

Ap­ple A4 800MHZ

Ap­ple A4 SOC is based on the ARM ar­chi­tec­ture. It is de­signed by Ap­ple and man­u­fac­tured by Sam­sung. It com­bines an ARM Cor­tex-a8 CPU with a Pow­ervr GPU and em­pha­sises power ef­fi­ciency. The chip made a com­mer­cial de­but with the re­lease of Ap­ple’s ipad tablet, fol­lowed shortly by the iphone 4 smart­phone, the fourth- gen­er­a­tion ipod Touch and the sec­ond­gen­er­a­tion Ap­ple TV.

The A4 pro­ces­sor pack­age does not con­tain RAM but sup­ports point-of-pur­chase (POP) in­stal­la­tion. This al­lows the dif­fer­ent de­vices which utilise it to have dif­fer­ent RAM con­fig­u­ra­tions, like 256MB low­power DDR SDRAM for the ipad and 512MB low-power DDR SDRAM for the iphone 4. The SOC fea­tures a Pow­ervr SGX 535 GPU.

NVIDIA Te­gra 2 1GHZ

The NVIDIA Te­gra 2 is a dual-core SOC that fea­tures an ul­tra­low­power (ULP) NVIDIA Geforce GPU with four pixel shaders and four ver­tex shaders. The pro­ces­sor within is ac­tu­ally a dual-core ARM Cor­texA9 CPU. The Cor­tex-a9 is 25 per cent Dhry­s­tone MIPS faster than Cor­texA8. Cor­tex- A9 runs 1 GHZ per core and has a 1MB L2 cache as well as one 32kb L1 cache per core. The GPU is a fully pro­gram­mable Opengl ES 2 sup­port­ing pro­ces­sor with eight cores. Te­gra 2 be­ing a NVIDIA prod­uct, a lot of An­droid games are be­lieved to be op­ti­mised for it.

This chipset also fea­tures a 1080p play­back pro­ces­sor, which al­lows HD movie play­back with­out tax­ing the main pro­ces­sor and thus sav­ing bat­tery life. It has been de­signed us­ing a 40nm process. There is also a ver­sion of this SOC sup­port­ing 3D dis­plays. Named the Te­gra 2 3D, this SOC uses a higher­clocked CPU (1.2GHZ) and GPU.

Sam­sung Exynos 4210 1.2GHZ

The Exynos 4210 uses the Cor­texa9 dual-core. It pro­vides fea­tures such as dual­core CPU, high mem­ory band­width, na­tive triple dis­play (2 WSVGA+ 1 HDMI out si­mul­ta­ne­ously), 1080p video de­code and en­code hard­ware, 3D graph­ics hard­ware and high- speed in­ter­faces such as SATA and USB. The ap­pli­ca­tion pro­ces­sor also sup­ports Ddr-based EMMC 4.4 in­ter­face to in­crease the file sys­tem’s per­for­mance. Exynos 4210 uses ARM’S Mali400 MP GPU. This graph­ics GPU is a move away from the Pow­ervr GPU of the Sam­sung Gal­axy S.

Qual­comm Snap­dragon MSM8260 1.5GHZ

Also known as the Snap­dragon S3, this SOC fea­tures dual­core Scor­pion CPUS and an Adreno 220 GPU built us­ing a 45nm process. It uses an ARMV7 in­struc­tion set and has sin­gle-chan­nel 333MHZ ISM/266 MHZ LPDDR2 and 512kb L2 cache. The Adreno GPU has of­ten been

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