Camera Memory Speed
Memory Card Comparison & Performance Tests for Digital Cameras

Lexar Professional 1000x UHS-II 256GB SDXC Memory Card Review

Lexar Professional 1000x UHS-II 256GB SDXC Memory Card Front

Introduction

Lexar Professional 1000x UHS-II SD cards offer up to 150MB/s transfer speed. The stated speed is for reading data from the card. Writing to the card is limited to 80MB/s. The card is rated UHS Speed Class 3 (U3) to support at least 30MB/s continuous write speed for recording 4K video. Lexar 1000x UHS-II cards are available in 16, 32, 64, 128 and 256GB capacities. The 256GB SDXC card tested in this review is model LSD256CRBNA1000 Rev C with UPC 650590186501. The card is made in Korea.

Lexar Professional 1000x UHS-II 256GB SDXC Memory Card Back

In order to get the full speed from this card the UHS-II interface must be used. The card is backards compatible in UHS-I and Standard SD devices, but will operate at lower speed. It supports SDR104 mode in UHS-I.

Performance

To test performance of the Lexar 1000x UHS-II 256GB card, it was benchmarked in several card readers. The highest sequential read speed in UHS-II card readers reached 156.5 MB/s, just above the 150MB/s stated read speed. Its write speed in UHS-II card readers measured 95.7 MB/s, surpassing the 80 MB/s write speed claim. In UHS-I card readers, the 1000x 256GB card reached up to 93.6 MB/s read and 78.9 MB/s write speed. This is the performance that it is capable of when used in UHS-I devices.

Card: Lexar Professional 1000x UHS-II 256GB
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

Lexar Professional 1000x UHS-II 256GB
Card Reader Benchmarks
Seq.
Read
1000MB
MB/s
Seq.
Write
1000MB
MB/s
Rand.
Read
512KB
MB/s
Rand.
Write
512KB
MB/s
Rand.
Read
4KB
MB/s
QD1
Rand.
Read
4KB
IOPS
QD1
Rand.
Write
4KB
MB/s
QD1
Rand.
Write
4KB
IOPS
QD1
Rand.
Read
4KB
MB/s
QD32
Rand.
Read
4KB
IOPS
QD32
Rand.
Write
4KB
MB/s
QD32
Rand.
Write
4KB
IOPS
QD32
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader156.50492.827137.3763.12710.4512551.51.292315.310.2402500.01.291315.1
SanDisk Extreme Pro SD UHS-II Reader/Writer156.43492.402135.7941.54410.1882487.21.308319.410.3212519.71.327323.9
SanDisk Extreme Pro UHS-II SD Reader/Writer156.31795.734140.7131.89211.6952855.21.315321.111.1022710.41.297316.7
Lexar LRWM04U-7000 UHS-II Reader156.10890.231138.8151.87111.0972709.21.385338.010.4952562.31.333325.5
SanDisk Extreme Pro SD UHS-II USB-C Reader156.08587.549135.9751.50210.5652579.41.301317.59.9852437.71.277311.8
ProMaster Professional Dual Card Reader SD UHS-II155.99292.794140.9701.85711.3652774.61.311320.112.0332937.71.322322.8
Delkin Dual Slot SD UHS-II and CF Card Reader155.99292.475141.2051.50211.9732923.11.341327.410.9812680.81.301317.7
Delkin Multi-Card CFast SD UHS-II microSD Reader155.94587.688141.5811.49111.7612871.41.297316.711.1092712.21.306318.8
Kingston MobileLite G4 UHS-II155.89995.690141.1581.65911.6062833.51.307319.011.2712751.81.306318.9
Kingston FCR-HS4 Card Reader155.76090.558142.8061.67311.9832925.51.330324.611.5492819.71.312320.2
Transcend Multi-Card Reader RDF9155.73792.639141.9802.44912.0112932.41.306319.011.2792753.71.289314.6
Sony S1 High Speed UHS-II Reader/Writer155.62185.174133.4992.4999.9182421.41.299317.29.6152347.51.298317.0
Lexar Professional Dual Slot UHS-II Card Reader155.57588.012142.6161.83111.8922903.31.314320.810.6642603.51.292315.4
Lexar Professional Workflow SR2 UHS-II155.46088.086140.3182.94612.0842950.21.369334.310.5602578.21.369334.3
Transcend Multi-Card Reader RDF8 Black93.79976.99989.9471.8669.2552259.51.178287.57.9681945.41.176287.0
Delkin Universal Memory Card Reader93.56478.85288.2171.3098.8062150.01.163284.18.4132054.01.172286.0
Transcend SD Card Reader RDF5 Black93.06677.82887.5961.8756.3001538.21.117272.75.8781435.01.125274.6
Delkin Travel Reader92.77075.90186.6310.9389.9912439.11.258307.19.3052271.71.229300.1
SanDisk ImageMate All-In-One USB 3.090.13076.81977.9931.4284.9311203.81.055257.54.7591161.81.055257.5

The Lexar 1000x card was also tested in various cameras. Its average write speed during continuous shooting is shown in the table below. In some cameras the card performed worse than expected. These include the Canon 77D and Panasonic GH5. More digital camera results will be added as additional camera models are tested.

Lexar Professional 1000x UHS-II 256GB
Tested in Camera
Write Speed
(MB/s)
Sony A972.8
Canon Rebel T7i66.7
Nikon D750064.2
Canon 77D31.2
Panasonic GH525.9

Cameras tested with this card: Canon 77D, Canon Rebel T7i, Nikon D7500, Panasonic GH5, Sony A9

Lexar Professional series memory cards are covered by a limited lifetime warranty.

The following table contains information encoded in the SD card.

Lexar Professional 1000x UHS-II 256GB SD — Internal Card Information
Serial number (PSN)103088845
Product Name (PNM)6BCHP
Product Revision0.5
Manufacturer ID (MID)0x000028
OEM ID (OID)BE
Manufacture Date (MDT)12/2016
Total capacity256,421,920,768 bytes

Available sizes and prices

Compare prices on the Lexar Professional 1000x SD card. The lowest prices are highlighted in the table below. Prices are updated daily.

CardSize
GB
Lowest
$ / GB
Prices
AmazonB&H PhotoAdorama
Lexar Professional 1000x SD UHS-II16$1.12$18.95Check price$17.95
Lexar Professional 1000x SD UHS-II32$0.81$25.98$27.50$27.40
Lexar Professional 1000x SD UHS-II64$0.73$60.00$48.95$46.98
Lexar Professional 1000x SD UHS-II128$0.66$97.95$97.95$84.95
Lexar Professional 1000x SD UHS-II256$0.70$179.00$179.00$179.00