Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd B&H Deal Finder...
Buy other stuff at Amazon.com...
Up to 1527MB/s sustained performance
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$368 $168
SAVE $200

$449 $359
SAVE $90

$999 $699
SAVE $300

$799 $299
SAVE $500

$249 $234
SAVE $15

$290 $250
SAVE $40

$1149 $799
SAVE $350

$1199 $999
SAVE $200

$1299 $1099
SAVE $200

$1799 $1799
SAVE $click

$1799 $1799
SAVE $click

$2799 $2499
SAVE $300

$3899 $3899
SAVE $click

$18599 $17099
SAVE $1500

$369 $239
SAVE $130

$764 $399
SAVE $365

$600 $450
SAVE $150

$1499 $649
SAVE $850

$1499 $649
SAVE $850

$7995 $7495
SAVE $500

$1597 $1097
SAVE $500

$420 $170
SAVE $250

$700 $700
SAVE $click

$2999 $2399
SAVE $600

$1699 $1399
SAVE $300

$169 $99
SAVE $70

$1498 $998
SAVE $500

$200 $150
SAVE $50

$370 $300
SAVE $70

$999 $949
SAVE $50

$1099 $999
SAVE $100

$580 $340
SAVE $240

MemoryTester Memory Performance

Last updated 2011-03-07 - Send Feedback
Related: diglloydTools, laptop, Mac Pro, MacBook, MacBook Pro, Macs, memory

These tests use the MemoryTester 'compute' command. MemoryTester is part of diglloydTools.

This is a pure memory access test. Speed is thus a function of memory bandwidth, which is a function of memory speed and channels, and the memory controller.

Both the MacBook Pro 2.3GHz and Mac Pro 3.33GHz uses 1333MHz memory, but the Mac Pro with 3 modules uses triple-channel memory (dual channel with 2 or 4 modules), whereas the MacBook Pro uses two modules for dual-channel memory. So the Mac Pro always wins on memory bandwidth.

The 2.3GHz MacBook Pro actually runs slightly faster for one CPU thread (perhaps due to a slighty higher Turbo Boost speed), but for two threads or more, its memory access speed is about 17% slower, consistent with the performance seen on a variety of tests in this review.

Time in seconds, lower is better
Horizontal scale is the number of simultaneous CPU threads
OWC Envoy Pro EX SSD
Blazingly fast Thunderbolt 3 SSD!

Up to 4TB capacity, USB-C compatible.

USB-C model also available


Great for travel or for desktop!
Save Big $$$$ on Memory for 2019 Mac Pro

Up to 65% better pricing than Apple

Lloyd recommends 32GB RDIMM modules for most users (more expensive LRDIMMS are for 512GB or more).


OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!
View all handpicked deals...

QNAP TS-253Be 2-Bay NAS Enclosure
$449 $359
SAVE $90

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__