Author Topic: Extreme pro 90Mbs? Meh, more like extreme dissapointment  (Read 9526 times)

sparedog

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Extreme pro 90Mbs? Meh, more like extreme dissapointment
« on: February 08, 2013, 01:25:30 PM »
I bought a Sandisk 8Mb Extreme Pro 90Mbs to replace my  Sandisk 8Mb Extreme 30Mbs. I wasn´t getting noticable differences in being able to record higher bitrates so I did some bench marks.

Here are the results
EXTREME 30Mbs


EXTREME PRO 90Mbs


and ML benchmark tests

EXTREME PRO 90MB/s card


EXTREME 30MB/s card


I would love to see other people´s benchamrks for these 90Mbs cards as this one was definately not worth the money!

Walter Schulz

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #1 on: February 08, 2013, 02:06:48 PM »
Êither your cardreader doesn't like your SanDisk card or (more likely) you have purchased a faked card -> product piracy or you have an USB 2.0 device.  USB 2.0 will be the bottleneck limiting transfer speed to about 40 MByte/s.
I have a Hama USB 3.0 cardreader not able to run at full speed with my SanDisk Extreme Pro. Kingston USB 3.0 is up to the task and > 85 MByte/s is not bad at all.
You haven't mentioned camera type, card type and cardreader type used. Please more details next time ...

Ciao, Walter

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #2 on: February 08, 2013, 04:32:50 PM »
the comparable pro cards advertise 50mb sustained and 90 read. sandisk acts like its got 90 sustained r/w. I think its lies.

the difference between the non liars' tiers is 50 vs 35. real world drop like 5 or 6 mb. Before uhs, most cards struggled to do 25/MB sequential write.

i don't see anyone achieving these speeds in anything but usb 3 readers and only for read.

sparedog

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #3 on: February 08, 2013, 05:31:35 PM »
You haven't mentioned camera type, card type and cardreader type used. Please more details next time ...

Ciao, Walter

Appologies for the half post

The camera is a 6D, the card type is as above, the card reader is built in to Asus G73, unfortunately I cannot find anything on the net about which speed the card reader is.

I bought the card from a very well known camera shop in Barcelona, Jordi Bas, so I would have assumed that it was real, however, how do shop owners know whether they are buying real stock? (that is a question, not a rhetorical statement)

True the card reader may be to blame, but the 6D should be pretty fast at writing, right? =D

Marvin

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #4 on: February 11, 2013, 11:28:51 PM »
built-in card readers is definately USB 2.0
Film is truth 24 frames per second.

Pelican

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #5 on: February 12, 2013, 12:50:41 AM »
The card is one thing and your camera is another thing...

Lexar Professional 1000x in 5D mkIII


Lexar Professional 1000x in 7D


I'm using a 32 GB Transcend 400x UDMA7 card in my 7D and it has a specification of 60MB/s write and 90 MB/sec read speed, but I can read the data from it with a Transcend USB 3.0 card reader above 110 MB/sec.
EOS 7D Mark II, EOS 7D, EOS 5, EOS 100 + lenses (10mm to 300mm), 600EX, 550EX, YN600EX x 3
EOScard, EOS DSLR firmwares, ARMu, NiControl, etc.: http://pel.hu/down

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #6 on: February 12, 2013, 03:38:44 AM »
But that 5d3 speed is cf...

nanomad

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R: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #7 on: February 12, 2013, 07:01:00 AM »
The 7d is cf too ::)
EOS 1100D | EOS 650 (No, I didn't forget the D) | Ye Olde Canon EF Lenses ('87): 50 f/1.8 - 28 f/2.8 - 70-210 f/4 | EF-S 18-55 f/3.5-5.6 | Metz 36 AF-5

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #8 on: February 12, 2013, 07:30:26 AM »
But those are cf 4.0 vs cf 5.0 speeds 7d is a standard behind.

these cards aren't UHS-II, they promise 90mb read/write but I think its burst, competitors bench where his camera is at.

I think I found the other problem:

*'Set Hi-Speed Mode( 96MHz )'

nanomad

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #9 on: February 12, 2013, 08:43:57 AM »
I think so... I'll test the UHS-1 card I've got too
EOS 1100D | EOS 650 (No, I didn't forget the D) | Ye Olde Canon EF Lenses ('87): 50 f/1.8 - 28 f/2.8 - 70-210 f/4 | EF-S 18-55 f/3.5-5.6 | Metz 36 AF-5

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #10 on: February 12, 2013, 03:24:00 PM »
Look in the Fw... 100MHZ is uhs 50... 208 is UHS 104 :(

coutts

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #11 on: February 12, 2013, 03:54:19 PM »
note: fixing shoot_malloc() in the 6d (it worked in previous commits but lately I notice it doesn't) should fix the "read test skipped" message.

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Re: Extreme pro 90Mbs? Meh, more like extreme dissapointment
« Reply #12 on: February 12, 2013, 04:29:04 PM »
Ok, I'll look at it, I thought shoot malloc worked....

ML repo for 6D is hella out of date.

the test doesn't fail from shoot_malloc it fails because of

 //void* buf = alloc_dma_memory(bufsize);

This works:
      void* buf = shoot_malloc(bufsize);

it skips because

if (bufsize > 1024*1024) bmp_printf(FONT_MED, x, y += font_med.height, "read test skipped: buffer=%d\n", bufsize);

if you force it on dma memory allocation you get an assert