I notice that Sandisk products specify a write speed while Lexar only quote read speed and say write speed will be less. What is Lexar write speed?
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Lexar Pro 16Gb CF tests list as READ = 143.9 and WRITE = 98.1See www.custompcreview.com/reviews/thirteen-flash-memory-card-roundup/16208/2/Ignore specifications. Test ar only comaparative under the same conditions. Specifications should be seen as "sales spin". The Lexar 1000 card speed benefits relate to off camera use NOT in camera. Nevertheless LEXAR 1000 cards are excellent value for money when similarly priced to San-disk cards. There are any number of comparative speed tests available if you search. They are interesting but relate to speeds reading and writing to a computer not speeds reading and writing inside your camera. Lexar Pro 16Gb CF tests list as READ = 143.9 and WRITE = 98.1See www.custompcreview.com/reviews/thirteen-flash-memory-card-roundup/16208/2/Ignore specifications. Test ar only comaparative under the same conditions. Specifications should be seen as "sales spin". The Lexar 1000 card speed benefits relate to off camera use NOT in camera. Nevertheless LEXAR 1000 cards are excellent value for money when similarly priced to San-disk cards. There are any number of comparative speed tests available if you search. They are interesting but relate to... » Read More Lexar Pro 16Gb CF tests list as READ = 143.9 and WRITE = 98.1See www.custompcreview.com/reviews/thirteen-flash-memory-card-roundup/16208/2/Ignore specifications. Test ar only comaparative under the same conditions. Specifications should be seen as "sales spin". The Lexar 1000 card speed benefits relate to off camera use NOT in camera. Nevertheless LEXAR 1000 cards are excellent value for money when similarly priced to San-disk cards. There are any number of comparative speed tests available if you search. They are interesting but relate to speeds reading and writing to a computer not speeds reading and writing inside your camera. « Show Less
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Tested by AS SSD Benchmark software, the read speed is 120MB/s and the write speed is 77MB/s for Lexar 1000x CF.
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Write speeds for this card are a bit cryptic. As you said, they are not published by Lexar leaving only unofficial 3rd party speed tests. I can say that I use this card in a Canon EOS 7D without any problems.Beyond this bit of information, I can only quote Lexar's published read speeds of a minium of 150MB/s (or faster). Also this card can capture video streams at up to 20MB/s. Lexar Professional 1000x: http://www.lexar.com/products/lexar-professional-1000x-compactflash-card
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SanDisk Extreme 16GB SDHC UHS-1 Flash Memory Card Speed Up To 45MB/s, Frustration-Free Packaging- SDSDX-016G-AFFP --That's what I ordered and use. A card with 8GB storage will work fine too. by SanDisk
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neither of these cards are that fast in RAW mode, you need the SDHC card to get faster RAW cycling time. This has everything to do with the read/write speed of the card you use. The fast cards need to be read through an adapter on your USB connection or by hooking the camera up(with the card in it) with the cable supplied with he camera.
2013203
that is generally depicted by the quality of the flash device you are using. i have used a patriot usb that shows no serious speed improvement over usb2.0, and i have a Kingston that is faster than any usb flash ive seen. this card has been stable, reliable, and quite fast during my usage. (use at work in IT environment daily)
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Do NOT buy the Sandisk Class 2 card! "Class-2" means its write speed is 2MB/S minimum. This Transcend 8GB is a "Class 6" card, which means its write speed is at least 6MB/S. My own benchmark showed that the speed is actually closer to 10MB/S. If you must get a Sandisk card, get either the "Ultra II" (which is similar in speed with this Transcend card) or the "Extreme III" (which is the fastest)
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I've seen benchmark tests of various SD/SDHC cards and there do see to be speed differences according to brand. SanDisk is usually at or somewhere near the top so they're a safe bet.If you have an old SD card reader then you may well need to replace it. If you have documentation for the reader and it doesn't list being able to read cards above 2GB then it might be too old to support SDHC cards.
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Class 10 is normally faster than class 6. The minimum rating for class 6 is 6Mb/sec, whereas the minimum for class 10 is 10Mb/sec. Sandisk products normally run higher than the minimum required. The faster speeds will allow for faster file transfers.
384452
I believe the wrote speed is up to 90MB/s* and writes up to 60MB/s. Hope this helps.
2256038
Yes. I have a Sandisk Extreme Pro 128GB UDMA7 card rated at 160MB/s. On this reader, I'm getting a whopping 50MB/s. junk.
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I'm having the same problem using a Sandisk 64GB, 30MB/s SDHC card. Packaging says it can handle "up to 64GB SDHC card". Yeah? Which one? Guess we'll have to run it by the manufacturer...good luck.
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this write speed is "normal" with all my sandisk ultra cards with all usb 2.0 devices. Tested in pc (h2testw) i can never get even close to class 10 write speed. Don't know what high end slr cameras or tablets are compatible with "Ultra" speed and don't care. Save your money and get a regular c10 card.
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I have been using a Sandisk 4GB SDHC (class 2 speed), and a Sandisk 8GB SDHC Extreme III (class 6 speed) with this camera and both seem to work fine. I've noticed that some retailers claim in their "specifications" sections that this camera can only use cards up to 2GB (not SDHC), but I haven't found this to be the case. I'm not sure if I'll actually be able to get the full 4-8GB storage capacity out of my cards, but compatibility hasn't been a problem. Hope this info helps.
709446
MLC or TLC NAND question has been answered. But, I just wanted to clear up something that made it confusing to me when purchasing the 64gb. Amazon has the description for the 64gb as "Up to 90MB/s Read Speed, 50MB/s write speed". The samsung packaging I received clearly shows "read speeds up to 90MB/s, Write Speeds up to 80MB/s". Glad this is up par with the speedy 32gb version. Hope this helps.
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I have two of the 16 GB 1000 x and they say the write speed is about 95 Mb per sec. I can't prove it but I also have 600 x and I can tell it has a faster write time. I use a Nikon D 700 and so continuous @ 8 fps in RAW. I like them.
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i don't understand the20 mb/sec. http://www.sdcard.org/developers/tech/sdhc says class 2, 4, 6 only do 2, 4, and 6 mb/sec. the link to the sandisk card shows class 6 but does say 20mb
1374222
It claims 3.0 but the read speed is determined by the card you put in it more than the 3.0 USB. I get similar speeds on either bus.
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I'm looking for a cable right now and just finished doing research and there is no difference in speeds between different cables. "No performance difference between SATA 3Gb/s and SATA 6Gb/s cables." "SATA revision designator on cables is mostly just marketing and has no bearing on the actual performance the cable can provide." http://www.pugetsystems.com/labs/articles/SATA-3Gb-s-vs-6Gb-s-Cable-Performance-Revisited-183/