Just for curiosity, I downloaded VFSMark v1.1 from PalmGear (it's also available from FreeWarePalm) 'cause I wanted to see what it would report for speeds. Here are the URL's for VFSMark:
From the large number of responses...are we to assume that yes some cards are faster than others, but phone itself has a lot to do with your results? Meaning software installed, etc.
It looks like the numbers will be more useful for comparing two cards on the same phone, rather than on two differnt phones
I have a Lexar 256 MB card (no 32X marking) as well and was curious about some of the variability people are observing.
Attached is a GIF of a table summarizing some of the results:
A few interesting things:
1. I did 5 runs with the phone being off and calculated a 95% confidence interval on the mean . Results show that a 5 point difference is probably meaningless.
2. It looks like phone being on vs. being off might have some impact. Certainly not conclusive but might be useful to report that when posting numbers. Would need to do more runs, particularly with phone on to confirm.
3. The VFSMark score seems to be just an average of each of the % scores, rounded down. (I used this rather than integer values).
4. The 32X cards also seem to score higher.
File Create: 74%
File Delete: 92%
File Write: 57%
File Read: 55%
File Seek: 92%
DB Export: 33%
DB Import: 83%
Record Access: 76%
Resource Access: 79%
VFSMark: 71
(I quote my own posts from other threads)
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Unofficial results Using Acid Image as a benchmark, I did a quick comparison between starting the program from my 128 mb Sandisk (not Ultra II)
Sandisk
Read and Start Program 10 sec
Read Photos (110 ) 45 sec
Lexar 32X
Read and Start Program 10 sec
Read Photos (same 110 ) 10 sec
Other programs, like some small games that would take a few seconds to load now load almost instantly, just as if they were in RAM.
......................................................................................................
So, in my opinion, the new cards that are marked as faster card do operate, in fact, at a faster rate.
One thing that I don't understand though. If you go to the PalmGear site and read the reviews of VFSMark, the numbers posted by other people are much higher.
For instance, File Create gave me a reading of 74%, yet at PalmGear, people posted numbers of 468% and 365%. One was as low as 90 %.
I know we always say that your mileage my vary, but the difference in performance is so huge that I just wonder why ?
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I'd rather have a bottle in front of me, than a frontal lobotomy
Originally posted by Schavlan One thing that I don't understand though. If you go to the PalmGear site and read the reviews of VFSMark, the numbers posted by other people are much higher.
For instance, File Create gave me a reading of 74%, yet at PalmGear, people posted numbers of 468% and 365%. One was as low as 90 %.
I know we always say that your mileage my vary, but the difference in performance is so huge that I just wonder why ?
The device that VFSMark is running on makes a big difference, particularly the CPU. Most of those high numbers I see are running on PalmOS 5 devices with CPU's at 200+ MHz. The stock 7135 CPU is 33 MHz. See what I mean?
VFSMark Results - "Multi Media Card 64mb"
File Create: 39%
File Delete: 57%
File Write: 19%
File Read: 54%
File Seek: 76%
DB Export: 11%
DB Import: 82%
Record Access: 80%
Resource Access: 83%
VFSMark: 55
Real World access is adequate, viewing pictures and .pdf's is slower than I'd like, but I've still got room in main memory for that. I want more space on the card, so I'll probably spring for one of the Viking 256MB units from Amazon ($62.99-$15 rebate + free shipping) unless I find a better deal.
File Create: 101%
File Delete: 112%
File Write: 111%
File Read: 55%
File Seek: 90%
DB Export: 95%
DB Import: 71%
Record Access: 79%
Resource Access: 82%
VFSMark: 88
Higher numbers than my other three cards (the first post in this thread), but not too much higher. It's probably limited by the slow 33 MHz processor speed of the 7135.
One thing that I am impressed with is the speed at which JBBackup v1.6.4 now performs an image backup of my 7135.
SanDisk 256MB (regular speed) - about 11 minutes
PNY 64MB - about 10 minutes, 30 seconds
Lexar 256MB - about 10 minutes
I have not tried to play MP3s from the Ultra-II of higher than 128 kbit/sec bitrate yet. Don't have time tonight, so I'll do that tomorrow and post results. I also only have a USB 1.1 port on my laptop. So, I can't test how fast it will go with my PNY SD card reader which is 2.0 compatible. I'm going to test that on a computer at work with USB 2.0 ports tomorrow. I've also ordered a PCMCIA SD card reader that I will use with my laptop to make it go faster.
O.K. Further speed test results. Copying/moving files to/from the Ultra-II card on my work computer with USB 2.0 ports is a lot quicker than any of my other three cards. Read speed exceeded 10 MB/sec consistently. Write speed topped out at about 5 MB/sec while I was putting MP3's onto the card. So, that's somewhat under SanDisk's advertised speed for writing, but it's still quite good. My 4-in-1 PCMCIA reader/writer that I'm going to use with my laptop won't arrive until late next week. So, speed testing with that will have to wait until then.
EDIT:
Under normal operating conditions, MP3's up to only 128 Kbit/sec rate can be played on the 7135. Some have suggested that using a faster SD card may help. I can verify that is indeed true for playing 160 Kbit/sec MP3's without overclocking the CPU. See below. This is by no means a guarantee that the same will work on your 7135. Your results may vary.
Note: From the other three, non-high-speed cards that I have, MP3 playing maxes out at 128 Kbit/sec. Trying to play any higher than 128 Kbit/sec MP3's from those cards results in skipping (CPU not overclocked).
With the SanDisk Ultra-II 512MB SD card:
MP3 playing with Bebopper - no overclocking of the 7135's CPU:
- 160 Kbit/sec - Successful - All Tests - No "skipping" at all.
- 192 Kbit/sec - Frequent, inconsistent skipping problems present in all tests. Shutting off the "Show output levels" option improved it a bit, but inconsistent skipping is still present.
- 224 Kbit/sec - Major skipping problems present in all tests. Higher bit rates not tested.
MP3 playing with Bebopper - 7135's CPU overclocked to 44 MHz with AfterBurner v3.20:
- 160 Kbit/sec - Successful - All Tests - No "skipping" at all, as expected by the previous test at this rate.
- 192 Kbit/sec - Successful - All Tests - No "skipping" at all, even with the "Show output levels" option turned on! Yippy!
- 224 Kbit/sec - Few, rare, inconsistent skipping problems present in all tests. Shutting off the "Show output levels" option made the skipping almost completely go away.
- 256 Kbit/sec - Major skipping problems present in all tests. Higher bit rates not tested.
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Michael
Last edited by SilvrDrgn : 04-19-2004 at 10:48 AM.
Originally posted by Quick So will you sell your card at a discount since it's used?
-Quick
I was thinking about keeping all of them for general file storage and transfer use between computers. But since you mention it, which one are you interested in (obviously not the Ultra-II) and how much you want to offer?? Reply via PM if you want. Or are you talking about buying the Ultra-II from me at a discount?
Originally posted by SilvrDrgn Or are you talking about buying the Ultra-II from me at a discount?
Absolutely! I figured since you have stressed it racing all these bytes around testing that it's really used and you should sell it to me at a large discount .
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