diglloyd Mac Performance Guide

Lloyd gets credit via these or any site ads/links... thank you!
Trusted computing vendor MacSales.com
B&H DAILY DEAL   B&H Deals by brand/category/discount
Wish lists: Sony | NIKON | ZEISS | Canon | Pentax K | Fujifilm | Leica M | Leica SL | Macs
Buy anything at Amazon.com
ThunderBay 4, up to 32TB!
Deal Zone, Great Deal Every Day
View BEST Deals Right Now

MemoryTester Memory Performance

Last updated March 07, 2011 - Send Feedback

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.

Copyright 2010 DIGLLOYD INC / Mac Performance Guide
Time in seconds, lower is better
Horizontal scale is the number of simultaneous CPU threads
Cycling

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2008-2016 diglloyd Inc, all rights reserved.