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

SanDisk Extreme 45MB/s 32GB SDHC UHS-1 Memory Card 45MB/s

SanDisk Extreme 45MB/s SD Card

Introduction

The SanDisk Extreme 45MB/s is a popular UHS-I SD card offering 45MB/s read and write speeds. As of late 2014, this card is being replaced by the SanDisk Extreme 60MB/s UHS-I SD card.

Performance

In benchmark tests using USB 3.0 card readers, the Extreme surpasses its 45MB/s rating. Its best read speed measured just over 47MB/s, while its write speed hit just above 45MB/s in several readers.

Card: SanDisk Extreme 45MB/s 32GB
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 45MB/s 32GB
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 SR147.88045.41543.9231.5613.930959.51.564381.83.741913.40.936228.6
Lexar LRWM04U-7000 UHS-II Reader47.75244.90744.3371.6434.1511013.51.599390.53.872945.20.961234.6
Lexar Professional Workflow SR2 UHS-II47.74944.55643.8451.6534.040986.41.580385.83.828934.50.995242.9
Transcend SD Card Reader RDF5 Black47.74745.29943.9161.5623.575872.91.426348.23.308807.71.024249.9
SanDisk Extreme Pro UHS-II SD Reader/Writer47.72344.84544.4531.6424.6521135.71.561381.14.065992.50.943230.1
Kingston MobileLite G4 UHS-II47.70444.81744.4891.6464.4221079.51.578385.23.951964.70.965235.5
Lexar Professional Dual Slot UHS-II Card Reader47.65844.61644.6791.6444.7371156.41.491364.04.1191005.61.028250.9
Delkin Dual Slot SD UHS-II and CF Card Reader47.58544.62844.2721.5973.625885.11.565382.13.937961.20.922225.2
Transcend Multi-Card Reader RDF947.54844.56344.3441.6454.6311130.61.549378.14.095999.80.982239.8
Delkin Travel Reader47.54844.55243.7201.6454.4751092.61.558380.34.068993.20.936228.5
Transcend Multi-Card Reader RDF8 Black47.53545.46044.0721.5772.844694.41.511368.83.918956.51.015247.7
Lexar Professional Dual Slot Reader47.51645.49543.6911.7414.1461012.21.585386.93.847939.20.954232.8
Kingston FCR-HS4 Card Reader47.50144.53543.3221.6584.066992.71.549378.13.872945.20.867211.6
Delkin Universal Memory Card Reader47.28945.25444.2371.6924.4991098.41.439351.44.051989.11.003244.9
Kingston Multi-Card Reader FCR-HS347.18242.66037.0341.6334.1391010.51.580385.73.854940.80.997243.5
SanDisk ImageMate All-In-One USB 3.046.92244.34141.3781.6432.717663.21.289314.82.895706.70.876213.9

In cameras the Extreme lives up to its name. It measured a best speed of 40.9MB/s write in the Canon 7D Mark II. Recent Nikon cameras measured 37-39 MB/s write speed.

SanDisk Extreme 45MB/s 32GB
Tested in Camera
Write Speed
(MB/s)
Canon 7D Mark II40.9
Canon Rebel T6i/T6s40.8
Samsung NX140.4
Nikon D720040.1
Nikon D81039.4
Nikon D710039.4
Nikon D330039.2
Nikon D550039.1
Canon 5Ds39.0
Nikon D75037.6
Sony A7R II36.0
Canon 70D35.3
Canon 6D35.1
Sony A600034.9
Pentax K-3 II34.8
Olympus E-M5 II34.1
Nikon D60033.3
Fuji X-T1032.6
Nikon D530032.3
Olympus E-M132.3
Olympus E-M1031.4
Nikon D80029.2
Olympus E-M526.6

Cameras tested with this card: Canon 5Ds, Canon 6D, Canon 7D Mark II, Canon 70D, Canon Rebel T6i/T6s, Fuji X-T10, Nikon D750, Nikon D810, Nikon D800, Nikon D600, Nikon D7200, Nikon D7100, Nikon D5500, Nikon D5300, Nikon D3300, Olympus E-M1, Olympus E-M5, Olympus E-M5 II, Olympus E-M10, Pentax K-3 II, Samsung NX1, Sony A7R II, Sony A6000

The following table contains information encoded in the SD card.

SanDisk Extreme 45MB/s 32GB SD — Internal Card Information
Serial number (PSN)1912105076
Product Name (PNM)SU32G
Product Revision8.0
Manufacturer ID (MID)0x000003
OEM ID (OID)SD
Manufacture Date (MDT)04/2012
Total capacity31,914,983,424 bytes

Available sizes and prices

Compare prices on the SanDisk Extreme 45MB/s card. The lowest prices are highlighted in the table below. Prices are updated daily.

CardSize
GB
Lowest
$ / GB
Prices
AmazonB&H PhotoAdorama
SanDisk Extreme 45MB/s SD16$0.80$12.75Check price
SanDisk Extreme 45MB/s SD32$0.65$20.75Check priceCheck price
SanDisk Extreme 45MB/s SD64$0.50$31.95Check priceCheck price
SanDisk Extreme 45MB/s SD128$1.60$204.98Check priceCheck price