The SanDisk Extreme cards offer high performance at a moderate price. The new-for-2015 Extreme 128GB and 256GB UHS-I SDXC cards have been boosted up to 80MB/s read speed rating. This is an upgrade over the 60MB/s read speed rating of the 16, 32 and 64GB Extreme SD cards introduced in mid 2014. All the latest Extreme SD cards are UHS Speed Class 3 (U3) rated to support at least 30MB/s continuous write speed required for 4K video recording. The Extreme U3 differ from the earlier Extreme Plus 80MB/s cards which were labeled U1 speed rating.
The Extreme 256GB UHS-I SDXC card in this review offers a tremendous amount of storage and can offer record hours of HD video recording. SanDisk claims 80MB/s read and 60MB/s write speeds. The card features a gold label that is similar between the Extreme 60MB/s and 80MB/s cards. The card is marked "Made in China" on the bottom.
The SanDisk Extreme 256GB SDXC card was tested in a variery of card readers. In benchmarks testing it reached 82.1 MB/s sequential read and 79.1 MB/s sequential write. Both surpass the ratings quoted by SanDisk and the write speed was significantly faster than the 60MB/s quoted write speed.
The Extreme 80MB/s outperformed the SanDisk Extreme Plus 80MB/s 32GB card in write speed (79.1MB/s vs 61.2MB/s), however the Extreme Plus posted a higher read speed at 99.5MB/s.
Card: SanDisk Extreme 80MB/s 256GB 256 GB
Benchmark: CrystalDiskMark 3.0.3 x64
Program settings: 1000 MB, 5 passes, random test data
Operating system: Windows 8.1 Pro
Motherboard: Gigabyte GA-Z77X-UD3H
Processor: Intel Core i7-3770K @ 4.40GHz
RAM: 32GB DDR3 1600
|SanDisk Extreme 80MB/s 256GB 256 GB|
Card Reader Benchmarks
|Transcend Multi-Card Reader RDF9||83.016||79.084||78.840||67.062||8.992||2195.4||2.927||714.6|
|Delkin Dual Slot SD UHS-II and CF Card Reader||82.819||79.060||78.815||67.128||8.650||2111.9||2.943||718.4|
|Delkin Universal Memory Card Reader||82.813||79.263||75.834||67.073||8.825||2154.6||2.631||642.3|
|Lexar Professional Dual Slot UHS-II Card Reader||82.800||78.787||78.552||69.350||8.899||2172.5||3.293||803.9|
|Delkin Travel Reader||82.286||78.983||74.948||65.731||8.712||2127.0||2.938||717.4|
|Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader||82.106||78.965||75.302||66.865||8.500||2075.2||2.583||630.6|
|Lexar Professional Dual Slot Reader||82.087||79.132||75.339||71.025||8.610||2102.1||3.708||905.3|
|Transcend Multi-Card Reader RDF8 Black||82.087||79.108||75.462||71.002||8.643||2110.1||3.251||793.7|
|Kingston Multi-Card Reader FCR-HS3||81.856||78.894||59.242||51.384||8.705||2125.2||2.953||720.8|
|SanDisk ImageMate All-In-One USB 3.0||81.843||79.054||70.896||60.792||5.514||1346.3||2.148||524.4|
|Kingston MobileLite G4 UHS-II||81.767||78.728||77.621||66.734||9.061||2212.2||2.965||723.9|
|Lexar Professional Workflow SR2 UHS-II||81.519||79.001||78.552||66.930||8.796||2147.5||2.969||724.8|
|Lexar LRWM04U-7000 UHS-II Reader||81.512||78.911||77.367||66.766||8.647||2111.2||2.959||722.3|
|SanDisk Extreme Pro UHS-II SD Reader/Writer||81.506||78.876||77.443||66.690||9.146||2232.9||2.943||718.4|
|Kingston FCR-HS4 Card Reader||81.481||78.746||77.557||66.898||9.007||2199.0||2.965||723.9|
|Lexar Professional Workflow SR1||81.481||79.048||75.302||67.073||8.960||2187.4||2.952||720.7|
|Transcend SD Card Reader RDF5 Black||81.285||78.817||74.861||66.387||7.217||1762.1||2.315||565.3|
Performance tests are also performed in cameras. So far it performed nearly equally to the Extreme Pro in the Pentax K-3 II (camera-limited) write speed test. Additional in-camera write test results will be added when this card is tested in additional cameras.
|SanDisk Extreme 80MB/s 256GB|
Tested in Camera
|Pentax K-3 II||37.2|
|Sony A7R II||36.2|
The following table contains information encoded in the SD card.
|SanDisk Extreme 80MB/s 256GB SD — Internal Card Information|
|Serial number (PSN)||857899|
|Product Name (PNM)||SE256|
|Manufacturer ID (MID)||0x000003|
|OEM ID (OID)||SD|
|Manufacture Date (MDT)||01/2015|
|Total capacity||255,865,651,200 bytes|
Compare prices on the SanDisk Extreme 80MB/s card. The lowest prices are highlighted in the table below. Prices are updated daily.
$ / GB
|SanDisk Extreme 80MB/s||128||$0.55||$71.08||$89.95||$69.95|
|SanDisk Extreme 80MB/s||256||$0.55||$159.85||$141.58||$159.95|