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Hey all, i wanted to upgrade to a better cell cum PDA, in my region Imate Jam and Kjam are available ... i like all the functionalities in Kjam and obviously they are better than JAM but one thing really confusing is that the clock speeds,
Jam's Processor = intel bulverde 416 Mhz
and
kjam's processor =TI OMAP 850, 200 Mhz
now if we see the MHz Jam looks faster but there might be some catch in the chipset and may be Mhz is not the standard to degrade Kjam's speed.
i have seen some kjam vs Jasjar threads and they look impressive so techies on these forums if possible explain the actuall difference between them in terms of speed, relatively and also the fact how slow the 200 Mhz is if compared to an intel chipset 200 Mhz
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Posted: 2005-12-06 15:30:58
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don't be misled by the processor speeds. While I haven't found an article that clearly compares the intel with the texas instruments its clear to me as a user of the k-jam since it was available that it performs as well, if not better than my old JAM. There is a little lag occassionally when it is dislpaying some icons in the program or settings windows but that is about all I have seen in all this time.
So clearly the architecture of the TI OMAP 850 is such that 200mhz is fine. Skype, for example, have a minimum requirement of 400mhz but skype comes preinstalled in the k-jam and I have used it without issue.
videos I play are as steady as the same ones where on my JAM, jasjar, ipaq 4700 etc etc
for more info about the processor take a read of the
Texas Instruments OMAP 850 page
The OMAP850 is a single chip that integrates a ARM926EJ-S™ core for applications processing and TI’s EDGE digital baseband modem. It is intended for high-volume wireless OEMs and ODMs and is not available through distributors
The OMAP850 includes all of the features of the OMAP850 and adds support for 128Mb or 256Mb of stacked mobile SDRAM. This makes the OMAP850 well-suited for space-constrained systems or for even smaller, lighter mobile device designs. It also consumes less power than traditional external memory configurations.
With this kind of flexibility, mobile device manufacturers can further reduce the size of high-end, next generation smartphone and wireless handsets. In addition to its space-saving features, stacked SDRAM offers the additional benefit of reduced power consumption - always an important consideration for mobile device designers.
The OMAP850 processor is an integral part of the TCS3500 EDGE chipset solution.
OMAP850 Features:
Low-Power, High-Performance CMOS Technology
Low-voltage 130 nm technology
1.1 - 1.5V cores, 1.8 - 2.75V IO
Extremely low power consumption: less than 10 µA in standby mode
Split power supplies for application processing, digital baseband and real-time clock enable precise control over power consumption
Optimized clocking and power management: Only two clocks required at 13 MHz and 32 kHz
ARM926TEJ Core Subsystem
ARM926EJ-S V5 architecture up to 200 MHz (maximum frequency)
16 kB I-cache; 8 kB D-cache
Java acceleration in hardware
Multimedia instruction set architecture (ISA) extension
EDGE Digital Baseband Subsystem
384 K-bytes internal SRAM
E-OTD and TTY support
Quad vocoder with EFR, FR, HR, AMR
GSM ultra-low power device (ULPD)
SIM interface
Application Subsystem
Supports all leading operating systems
DMA with 4 physical and 17 logical channels and a dedicated 2D graphics engine
Programmable GPIO keyboard interface
54-Mbps WLAN interface
Security acceleration in hardware:
Secure bootloader
48 kB of secure ROM
16 kB of secure RAM
Hardware acceleration for security standards and random number generator
Unique die ID cell
Third-party Security software library
Enhanced audio controller (EAC)
Comprehensive memory controller for interfaces to:
128 MB of mobile SDRAM
256 MB Flash
NAND Flash controllers
1.6 Mb ISRAM
SD/MMC/SDIO interface
Enhanced Trace Module for debug
LCD controller
uWire
SPI
1-wire and HDQ interface
Bluetooth data/audio interface
USB On-the-Go
Two high-speed 3.68 MHz UARTs
Fast IrDA (FIR)
Two 32-bit timers
Parallel camera port
Programmable three-color LED pulse generation
I²C master/slave controller
SmartCard interface
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Posted: 2005-12-06 15:53:01
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