|
As I promised in my
previous PDA comparison (Sony NR70V VS Tungsten T) I'm ready to introduce a
detailed benchmark results for latest products from Palm and Sony -
Tungsten T and Clie
PEG-NX70V. This time it's a real fight: both devices are based on latest
version of Palm OS (5.0) and have powerful processors with ARM architecture
inside.
I also used benchmark results of fastest Palm, based on classical DragonBall CPU - NR70V overclocked up to 99 MHz - to
show how fast are new processors.
CPU/System benchmarks
Before proceed to benchmarks results I would like to point you in spite of
the fact that Tungsten T and NX70Vare powered by ARM based CPUs these
microprocessor chips are created by different manufactures. Tungsten T use Texas Instruments OMAP1510 CPU with clock speed 144 MHz
while NX70V use an Intel
PXA250 with clock speed 200 MHz.
Speedy (http://www.aldweb.com
)
Speedy performs three resource taking routines (calculation, memory access
and graphical display) to measure the real performance of Palm OS device.
Device's performance is ranked on several charts against baseline
measurements of other common PalmOS
compatible devices. Speedy reports both a CPU frequency and a relative
index (100% is for the Palm Vx
at 20 MHz).
YCPUBench ( http://www.hotpaw.com/rhn/hotpaw
) is latest PalmOS
handheld benchmarking utility. It runs on Palm OS versions 3.0 to 5.x, and
includes armlets to test OS 5 native ARM CPU performance, as well as the
usual code for MC68000 Dragonball
based units.
** The reported "bogo-68k-MHz" values are scaled relative to a
MC68000 running in system with no memory wait states.
The first benchmark is the Byte sieve, published in Byte magazine issues in
Sep 1981 and Feb 1983. The sieve array size is set at 8192. The time
reported for 10 loops of Byte sieve on a 1 "MIP" VAX 11/780
super-minicomputer was 1520 milliseconds (should be equivalent to 152 mS for 1 loop).
The second benchmark uses public domain C code for a complex integer fft using a pre-initialized
array for sin() table
lookup. The data size is set to 256 complex points.
Benchmarks 3 thru 6 are memory bandwidth benchmarks. These benchmarks read
or write to a region of memory using a loop unrolled to 4 long int statements. The region of
memory is larger than 32kB, which should be larger than the data cache.
Benchmark 7 is a floating point math intensive benchmark. It calculates,
using double precision math, a Mandlebrot
set (depth of 100) for a 32x32 size monochrome bitmap, and returns the
number of black dots in the bitmap.
The armlet code was compiled with gcc-arm-elf
3.1.1 -O1 The 68k code was compiled with Codewarrior for Palm R8 C/C++ 68k v2.4.6 b0196,
optimization level 2 for faster code.
After these tests I have only one conclusion - NX is surpass all my
expectations and 200 MHz Intel CPU is really beats device based on 144 Mhz TI CPU and all previous
devices based on Motorola DragonBall
(with 68k instruction set) processors, even with clock frequency of 99 MHz.
Most expected question after that - what's about battery life of this
device? It is extremely interesting that in spite of the fact that Sony is
using more power consumption display (320x480 against 320x320) and
processor (200 MHz against 145 MHz) its battery life is almost equal to TT
and even surpass it in "backlight off" mode.
Battery
Benchmark ( http://www.tt.rim.or.jp/~tatsushi )
And finally "i/o subsystem" benchmark. I've used VFSMark for evaluating the
performance of expansion card operations using the Palm VFS (Virtual File
System) API for card access.
VFS Benchmark (http://www.palmgear.com/software/re...=34400&type=zip
)
SD is leave behind the Memory Stick
even with enhanced NX's
MS slot.
P.S. As for me I think Tungsten T will be my next PDA after NR70V. It's
small, speedy and has almost all functions necessary for me (voice
recorder, audio player, Bluetooth). Only one real pain - absence of Virtual
Graffiti 
Regards,
Pilotoved
© PalmQ Online - Latest news about Palm handhelds
in Russian
Please do not reproduce any part of this material without my permission.
|
