New Delkin Black 650 card and HE* Raw continuous speeds...

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maxxus46

maxxus46

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Hello
Just purchased a new New Delkin Black 650GB CF express type B card for my Z8. I tested continuous shooting in Raw HE* and I am experiencing pauses after approx. 104 frames or so. Oddly my previous 256GB delkin power G4 did better at around 210 frames. Also worth noting is both cards were "full " formated. Did I get a faulty card ? Appreciate any feedback. Thanks
 
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I have the SD card set to overflow only.
Pretty sure the z8/z9 have the same write speeds and buffer limit. It's also weird that my 256 delkin power G4 out performed the black card? Thanks

Cameron T said:
Well, you're capped by the z8, which is limited to ~900MB/s write from the camera to the card regardless. A faster card won't matter beyond that.

Though it makes me wonder if you're writing to an SD card at the same time, might explain the slow down.
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I have done some basic testing with my Z9 and my CFE cards. I don't have any issues with my Delkin Blacks, Prograde Cobalts, and Angelbird AV Pro SX cards getting 200 HE* images without any slowing. I have also tested all of those cards and I can get almost 400 HE* images in 20 seconds. I have a Prograde Gold 4.0 card that I can only get 136 HE* images before slowing. This is in a controlled environment so all of the images compress to the same size and image size could change these results.

I was disappointed in the performance of the Prograde Gold 4.0 card I purchased. I am wondering if there is an issue with 4.0 cards performing slower that measured speeds in devices that do not natively support 4.0.
 
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I think I am going to return the card to BH , since I just received it yesterday. I'll try a different version of a delkin black or Prograde Cobalt in hope of picking up more frames from the buffer. I expected the Delkin Black v4 650GB to be much faster than it is. Certainly not worth it current price. Thank again
 
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Could you tell me which Delkin Black and Prograde Cobalts cards you have tested ? I would Appreciate information on the capacity and whether v2 or v4 versions ? Thank you

MartyD said:
I have done some basic testing with my Z9 and my CFE cards. I don't have any issues with my Delkin Blacks, Prograde Cobalts, and Angelbird AV Pro SX cards getting 200 HE* images without any slowing. I have also tested all of those cards and I can get almost 400 HE* images in 20 seconds. I have a Prograde Gold 4.0 card that I can only get 136 HE* images before slowing. This is in a controlled environment so all of the images compress to the same size and image size could change these results.

I was disappointed in the performance of the Prograde Gold 4.0 card I purchased. I am wondering if there is an issue with 4.0 cards performing slower that measured speeds in devices that do not natively support 4.0.
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Nasos Kosmas said:
I just tested my Delkin Power 512 G4 with the same continuous Raw HE* on Z8 and got the same 104 files (5,2 sec) before frames drop to about 15 Fps.if this can help you..
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Very helpful, thank you. Your getting pretty much the same speed you would get with the Delkin Black 650 v4 card (matches my tests with Raw HE*). So the high end v4 cards do not seem to have any advantage on current cameras like z8/z9.
 
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maxxus46 said:
Could you tell me which Delkin Black and Prograde Cobalts cards you have tested ? I would Appreciate information on the capacity and whether v2 or v4 versions ? Thank you
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The Delkin Blacks are both 325GB and were purchased in 2023, the Prograde Cobalt is a 165GB and was also purchased in 2023. They are not CFE V4.0 cards.
 
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MartyD said:
The Delkin Blacks are both 325GB and were purchased in 2023, the Prograde Cobalt is a 165GB and was also purchased in 2023. They are not CFE V4.0 cards.
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It's seems the v4. 0 cards have zero benefit over the previous generation in current cameras . I'm sure that will change with the next iteration of Nikon cameras , but prices on v4 cards will also drop further by then and offer even more capacity. Thanks again
 
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