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New Mac Pro?

Or iMac 5K or iMac Pro?
Consult with Lloyd ASAP before buying!


System configuration for CPU, GPU, memory, SSD, backup, RAID, optimizing performance, workflow.
For YOUR optimal workflow

Avoid costly mistakes in throwing money at the problem for less performance and/or buying the wrong machine for your own needs!

Remote screen sharing available for RAID, software configuration, etc.

More about 2019 Mac Pro vs iMac 5K vs iMac Pro...

MacBook Pro i7 CPU Performance and Memory Speed

Last updated 2010-04-20 - Send Feedback
Related: bandwidth, laptop, MacBook, MacBook Pro, Macs, memory

This page analyzes raw CPU performance.

See the system configuration notes.

MemoryTester — memory bandwidth

See MemoryTester for details on this test.

The memory controller of the Core i7 delivers up to 46% better bandwidth for multi-threaded code! This is a real test with threads(pthreads) in a real C++ program, not theory.

MemoryTester — compute

See MemoryTester for details on this test. The graphs below are for 1/2/3/4 CPU threads on the horizontal axis.

Even though memory itself is the same speed (1066MHz), the memory controller of the Core i7 delivers superior bandwidth.

OWC Thunderbolt 3 Dock
Ideal for any Mac with Thunderbolt 3


Dual Thunderbolt 3 ports
USB 3 • USB-C
Gigabit Ethernet
5K and 4K display support plus Mini Display Port
Analog sound in/out and Optical sound out

Works on any Mac with Thunderbolt 3

SHA1 hash (CPU task with memory access)

Hyperthreading (3 or 4 threads) delivers a small improvement here, but not much.

MemoryTester compute command

Pure computation with no memory access

Hyperthreading (3 or 4 threads) delivers almost zero improvement.

MemoryTester compute command

Pure memory access: copy and compare memory.

The memory controller of the Core i7 delivers up to 29% better bandwidth with two threads copying and comparing memory.

Hyperthreading (3 or 4 threads) achieves nothing, as expected.

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



MacPerformanceGuide.com

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