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

Patriot EP Pro 128GB UHS-I Memory Card Review

Patriot EP Pro 128GB SDXC Memory Card

Introduction

The Patriot EP Pro 128GB SDXC card offers a large size and high degree of performance. This UHS-I memory card is rated at up to 90MB/s read and 50MB/s write speed according to Patriot. The EP Pro is offered in 32, 64 and 128GB capacities. The 128GB capacity SDXC card (PEF128GSXC10333) is tested in this review. The 32GB and 64GB capacity cards were tested previously. EP Pro memory cards are covered by Patriot's 5-year limited warranty.

Patriot EP Pro 128GB SDXC Memory Card back

Performance

After testing in several USB 3.0 card readers, the highest benchmark reached 96.6 MB/s sequential read speed. This is comfortably above the 90MB/s quoted by Patriot. Write speed reached only 42.7 MB/s, rather than the 50MB/s as advertised. Comparing other sizes of the card, 64GB capacity version measured similarly at 42.3 MB/s write speed, while tests of the 32GB capacity EP Pro card reached 48.1 MB/s. As the flagship of Patriot's memory card line the EP Pro leaves a lot to be desired in terms of write performance.

Card: Patriot EP Pro 128GB
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

Patriot EP Pro 128GB
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
SanDisk Extreme Pro SD UHS-II Reader/Writer97.70642.43984.78620.9234.7631162.90.720175.95.6321375.00.834203.5
Lexar Professional Workflow SR2 UHS-II96.63442.57787.91317.2585.9961464.00.806196.87.2801777.30.929226.8
Lexar LRWM04U-7000 UHS-II Reader96.39442.51888.18818.1765.9921463.00.801195.57.2701774.90.931227.4
Lexar Professional Dual Slot Reader95.23042.74187.88418.4645.7941414.50.804196.36.9781703.60.933227.8
Kingston MobileLite G4 UHS-II95.04042.57788.0148.5636.0921487.40.808197.37.3821802.10.939229.4
Kingston FCR-HS4 Card Reader94.92842.70888.55317.9706.1811508.90.813198.57.3861803.30.940229.4
SanDisk Extreme Pro UHS-II SD Reader/Writer94.91142.51187.95612.6306.0801484.40.805196.67.3711799.50.941229.8
Transcend Multi-Card Reader RDF994.88542.63987.91330.0686.0351473.40.806196.87.3901804.30.941229.8
Lexar Professional Dual Slot UHS-II Card Reader94.83442.61387.75418.8756.0991489.10.757184.87.3231787.90.907221.4
Delkin Travel Reader94.75742.15985.39217.6996.0311472.50.807197.07.4811826.40.939229.3
Transcend SD Card Reader RDF5 Black94.66242.53986.80315.9244.7921170.00.734179.25.3401303.60.844205.9
Delkin Universal Memory Card Reader94.62042.54987.16322.9105.7651407.50.754184.06.9201689.30.898219.3
Delkin Dual Slot SD UHS-II and CF Card Reader94.59439.96687.86914.2715.9991464.70.806196.77.3551795.60.933227.7
Lexar Professional Workflow SR194.40742.64286.87512.4485.5431353.20.803196.06.7461647.00.930227.1
SanDisk ImageMate All-In-One USB 3.092.49142.62977.76219.8753.949964.20.701171.14.3401059.60.801195.6
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader92.42641.78983.95614.8155.6571381.10.782190.97.0091711.30.895218.5
Kingston Multi-Card Reader FCR-HS389.10441.77961.21118.1246.0201469.80.808197.27.4051807.70.947231.3
Transcend Multi-Card Reader RDF8 Black76.03338.68768.29418.6355.3571307.80.684166.96.3591552.50.788192.4

Camera write speed tests reached up to 36.8 MB/s average continuous write speed in the Nikon D500. Other in-camera test results are provided in the table below.

Patriot EP Pro 128GB
Tested in Camera
Write Speed
(MB/s)
Canon 80D38.8
Fuji X-Pro238.4
Nikon D50036.8
Nikon D560034.1
Fuji X-T1033.9
Olympus E-M1 II32.0
Olympus PEN-F31.7
Sony A7R II28.4
Sony A630027.4
Canon 5D Mark IV10.3

Cameras tested with this card: Canon 5D Mark IV, Canon 80D, Fuji X-Pro2, Fuji X-T10, Nikon D500, Nikon D5600, Olympus E-M1 II, Olympus PEN-F, Sony A7R II, Sony A6300

The following table contains information encoded in the SD card.

Patriot EP Pro 128GB SD — Internal Card Information
Serial number (PSN)111226786
Product Name (PNM)SDU1
Product Revision0.2
Manufacturer ID (MID)0x000076
OEM ID (OID)
Manufacture Date (MDT)03/2013
Total capacity128,713,752,576 bytes

Available sizes and prices

Compare prices on the Patriot EP Pro 90MB/s SD card. The lowest prices are highlighted in the table below. Prices are updated daily.

CardSize
GB
Lowest
$ / GB
Prices
AmazonB&H PhotoAdorama
Patriot EP Pro 90MB/s SD32$0.65$20.67
Patriot EP Pro 90MB/s SD64$0.47$29.99
Patriot EP Pro 90MB/s SD128$0.43$54.99