Silverman Loc: Michigan

Might someone Please provide a good understanding of exactly what the "READ SPEED & WRITE SPEED is on any SDHC or SDXC Memory Cards.

Thanks
A Fellow Newbie Photography ( Still Learning.)

dsmeltz Loc: Philadelphia

Can't tell you about "any" card. Need to know what specific card. They are all different.

see this article:
https://www.bhphotovideo.com/explora/computers/tips-and-solutions/numbers-your-memory-card

John_F Loc: Minneapolis, MN

I have always been confabulated by the speeds cited on SD cards. In prominent lettering you get the read speed, but in many cases there is no write speed. There are places that review/test SD cards and it seems their results are obscure (I quit looking 2+ years ago). Many SD cards have two extra letters, like HC XC, which stand for something but whether they mean faster write speeds I have no idea. Might an SD engineer, if we have one, comment?

Silverman Loc: Michigan

Product Highlights

64GB Storage Capacity
Class 10 / UHS-I
Max. Read Speed: 80 MB/s
Min. Write Speed: 10 MB/s

Product Highlights

64GB Storage Capacity
UHS-I / V30 / U3 /Class 10
Max Read Speed: 90 MB/s
Max Write Speed: 40 MB/s

Product Highlights

64GB Storage Capacity
UHS-I / V30 / Class 10
Max Read Speed: 95 MB/s
Max Write Speed: 90 MB/s

Which would perform best with;
RAW images?
RAW + Jpeg Images?

Skiextreme2 Loc: Northwest MA

Read speed is just that, the speed that the disk is capable of being read at by the device it's in. Write speed is how fast the card is capable of being written to by the device it's in. With all but the best (read more expensive cards), the write speed is usually much lower than the read speed as writing to the card is more technical than simply reading it.

Newer, more technologically advanced devices (camera's) are capable of writing at faster speeds than older, less technical devices. Many of the newer camera's are capable of writing video, and have frame burst rates of 8-10 frames per second which requires a faster card than an older camera with a frame rate of only 3-4 frames per second.

Using a card with a 30MB/s write speed in, for example, a camera with a 10 frame per second capability may not allow the camera to perform at 10 frames per second, or to film HDMI 1080P, whereas a 95MB/s write speed card would (at least it would do better at both). A card with 300MB/s will write at speeds faster than 10 frames per second or film at 4K speeds but only in a camera capable of doing so.

Hope that helps

Skiextreme2 Loc: Northwest MA

I'm not an engineer but HC means High Capacity and XC means Extreme Capacity.

dsmeltz Loc: Philadelphia

64GB Storage Capacity is the size of the card and denotes how much you can put on it.
Class 10 / UHS-I is a redundant expression of the minimum write speed.
Max. Read Speed: 80 MB/s This is the fastest speed at which the card can be read.
Min. Write Speed: 10 MB/s this is the slowest speed that data will be written to the card.

Silverman Loc: Michigan

I have a Nikon D3300 DSLR and do not want to waste money on expensive cards if they will not perform at their PEAK performance in my Camera, hope this makes sense. I am interested in Shooting RAW and RAW+Jpeg images.

Skiextreme2 Loc: Northwest MA

Find one at a price that suits your needs and always check user reviews. There are a lot of cheap knock-offs out there. The cheaper the card, usually the poorer the reviews.

Old and gray Loc: Schenectady, New York

Hello,
For those ppl who want to know about SD cards ... Class 2 - Class 4 markings tell how fast they can be wrote on .... ( made up #'s ) lets say class 2 = 2 pictures a sec. ... Class 10 = 8 to 10 per sec.

UHS Class is more for video .... they have a min and max speed, so your videos show up a lot better ... full HD Video's ... need Class 10 and UHS 3

For all of the GEEK stuff go to WWW.SDCARD.ORG

Old and Gray

Silverman Loc: Michigan

How many hours of Video can you put on a 64GB memory card?
How many RAW images can you put on a 64GB memory Card?
How many RAW + Jpeg images can you put on a 64GB memory card?

steve_stoneblossom Loc: Rhode Island, USA

It all depends on the camera. More MP means bigger files. Bigger files means less images per card.
Your camera will tell you (roughly) how many shots per card when you set it to RAW+jpeg to shoot.
Can't help you with video.

Try this:
https://kb.sandisk.com/app/answers/detail/a_id/69/~/number-of-pictures-that-can-be-stored-on-a-memory-device

Skiextreme2 Loc: Northwest MA

Your manual should tell you both how many photos (and what sizes) as well as how much video. 24 Megapixel images saved in Raw 14 bit compressed will give you about 1,736 photos (the manual says 217 on an 8 GB card x 8 = 1,736). JPEG Fine at the largest size should give you about 4056 (the manual says 507 on an 8 GB card x 8 = 4056).

Look up memory card capacity in your manual to see what the specs are for your camera.

TriX Loc: Raleigh, NC

If you Google fastest SD (or CF or XQD or...) card for your camera model, it will lead you to a number of sites that test all the popular cards in YOUR camera, then you can make an informed decision. Some sites provide the data in read and write speeds in MB/sec while others spec the max number of shots in a burst before the buffer fills. Here’s one for your camera: https://www.cameramemoryspeed.com/nikon-d3300/fastest-sd-card-tests/

Regarding your question on how many photos or how long a video you can store for a given card size, as has been said, RTFM (read the fine manual) for your camera 😳.

sv3noKin51E

We have a Nikon D3000 series camera we shoot mainly in manual mode. Have used recommended cards in the past, but now buy PNY, Samsung and Sandisk cards for speed, reliability and the no quibble replacement warranty. Cheaper cards will usually work, but tend to fail, are slow, and worrying about it isn't worth it. If the camera has a rate of 5 or 20 MBs read/write transfer speed, it isn't a waste of money to try a higher-rated card, and you might just be a convert too.

The faster cards are darned cheap these days whether it's SD or micro USB in an adapter. The PNY SDXC micro USB U1 in 32 GB is about $12, the 64 U3 with up to 90 MBs is about $19 and if you really want to shoot an insane amount of RAW, the U3, 128 GB runs about $36-$42, about the same price for Samsung and Sandisk on amazon. The PNY have a lifetime warranty, Samsung has 10 years to life, and the same goes for Sandisk; they all come with the SD adapter. We use them in all our Nikons, Canons, tablets and phones.

We'v'e tried or used literally every brand and every speed from 4, 10, U1, U3, etc. The new SDXC is rated in excess of what this and most other cameras can keep up with, but the camera and devices don't care; they format the SDXC cards without a hiccup, and the same with the other devices. We are able to shoot as fast and long as we please. If the card becomes too warm, the camera will usually pause, doesn't happen often and the camera buffer never fills up. IMO, the bit of extra money spent on a good high-speed card eliminates any worry or problem we used to have with other, lesser cards.

The newest 128 card reported something like 12 hours of video available on the Nikon D3xxx, but the camera limits the length of each clip, the D7200 will shoot about half an hour and it's never done anything except deliver great video on these cards. We shot RAW for a week on the new Samsung cards before off-loading images, and figured we we were over half-full, but only had 40 GBs of images on the card. That was a good bit of editing to work through. Reformatted the card in less than two seconds and started shooting again.

Not every camera that uses SD will have as good a results; Nikon never tested or rated these cards; who knows why, but they are the best and don't your shots deserve the best, since they don't cost that much? Just a couple of years ago, they were twice the cost, and like everything, eventually the cost comes down. We only purchase these when Amazon sells and fulfills them, and have never received a knock off, and that's a problem when you pinch pennies on cards; other places may say that's what you're buying, the packaging usually gives it away, but the counterfeiters are pretty good.

In older cameras like the D200-D300, we have used the SDXC cards in the SD adapter, which fits in the CF Type II adapter and as long as it's 32 GB, the camera didn't seem to care/know the difference. Not sure about what the 64 GB card would to in the older camera but others have said it works as well; that's a test for another day. Hope that's useful, sv