Camera Memory Speed
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Lexar Professional 800x 64GB CF Card Review

Lexar Professional 800x 64GB CompactFlash Memory Card

Introduction

In the Lexar range of CompactFlash memory cards, the Professional 800x is positioned just below the highest-level 1066x card. The 64GB version of this card has a claimed read speed of 120MB/s and write speed of 75MB/s. This differs from the 32GB capacity version which claims only 45MB/s write speed. The 800x card supports up to UDMA 7 protocol for high speed transfers. The card meets VPG 20 specification; Video Performance Guarantee to support at least 20MB/s continuous write speed for recording video streams. Several capacities of this card are available, including 8, 16, 32, 64, 128, 256 and 512 GB.

Performance

In benchmark tests in USB 3.0 memory card readers, this Lexar 800x 64GB outperformed its ratings. In the Lexar Professional Workflow CFR1 Card Reader it reached 162.5 MB/s read speed, well past its 120MB/s rating. In fact, this read speed is practically identical to the Lexar 1066x card and is very close to the theoretcial maximum 167MB/s provided by UDMA 7. Write speed also surpassed specification, with 77.5MB/s sequential write speed measured in the CFR1 reader. Additional benchmarks in other readers are displayed below.

Card: Lexar Professional 800x 64GB
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 800x 64GB
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
Lexar Professional Workflow CFR1162.52077.534108.47336.5848.1311985.11.029251.110.6582602.11.334325.6
SanDisk ImageMate All-In-One USB 3.0160.23574.06869.87037.4494.8671188.10.935228.45.4771337.21.174286.7
Lexar Professional Dual Slot UHS-II Card Reader159.84475.901143.56942.5568.8712165.71.010246.512.5333059.81.331324.8
Transcend Multi-Card Reader RDF9159.77175.989144.23637.7568.7612139.01.005245.412.5563065.51.316321.3
Kingston FCR-HS4 Card Reader159.74677.198142.66334.7048.7552137.61.012247.212.3793022.11.329324.5
Transcend Multi-Card Reader RDF8 Black157.34976.028145.15035.7418.5242081.01.044254.811.2402744.01.348329.1
Lexar Professional Dual Slot Reader157.20875.770145.22742.6818.5182079.71.044254.911.2072736.01.347328.9
Delkin Universal Memory Card Reader154.68074.669142.00444.4388.1591992.01.045255.111.0942708.51.347328.7
Kingston Multi-Card Reader FCR-HS365.63068.93528.99931.4498.6262106.01.033252.211.4962806.51.341327.3

One anomaly was the low read speed in the Kingston FCR-HS3 reader.

The 64GB 800x card will be tested in cameras soon. Results to be posted below.

Lexar Professional 800x 64GB
Tested in Camera
Write Speed
(MB/s)
Canon 5D Mark IV71.9
Canon 1D X67.6
Canon 5Ds64.6

Cameras tested with this card: Canon 1D X, Canon 5D Mark IV, Canon 5Ds

Lexar Professional series memory cards have a limited lifetime warranty.

The following table contains information about the tested card. Card information including a unique serial number, name (often a model number) and firmware version is encoded in the card. Cards are often engraved or printed with an identifier on the outside, but it is often a batch or lot number and not an individual serial number.

Internal Card Information: Lexar Professional 800x 64GB CF
Serial number41643421511323006326
NameLEXAR ATA FLASH CARD
Firmware20131108
Highest DMA supportedUDMA7
Total capacity64,030,244,864 bytes
External Card Identifiers
Engraved on end of card3230064GBNMAC4114E157F1

Available sizes and prices

Compare prices on the Lexar Professional 800x card. The lowest prices are highlighted in the table below. Prices are updated daily.

CardSize
GB
Lowest
$ / GB
Prices
AmazonB&H PhotoAdorama
Lexar Professional 800x CF8$11.38$91.00Check priceCheck price
Lexar Professional 800x CF16$2.19$35.04Check priceCheck price
Lexar Professional 800x CF32$0.96$30.63Check priceCheck price
Lexar Professional 800x CF64$1.17$74.71Check priceCheck price
Lexar Professional 800x CF128$0.69$87.99Check priceCheck price
Lexar Professional 800x CF256$0.70$179.99Check priceCheck price
Lexar Professional 800x CF512$0.71$364.00Check priceCheck price