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AlDavis

macrumors member
Original poster
May 7, 2007
64
5
What CPU upgrade does anyone recommend that would be much faster at a noticeable difference? The current CPU in my Mac Pro 5,1 is the 3.2 GHz Quad-Core Intel Xeon. Will an upgrade be worth it?
 

mikas

macrumors 6502a
Sep 14, 2017
900
649
Finland
It all depends on your workload and programs you use.
If your work depends on single core processing power, there is not so much to do about it anymore.
If your work depends on multi core processing power, you can go up something like 50% with a 6-core Xeon upgrade.
 

MarkC426

macrumors 68040
May 14, 2008
3,700
2,097
UK
Yes, as the 6 core is the best you can do in single processor machine.
But as mikas says the clock speed upgrade on a 6 core is marginal for single core processes.

Maybe more ram would help you....?
 

mikas

macrumors 6502a
Sep 14, 2017
900
649
Finland
This #47 is just about there how far I want to go with these oldies.
Maybe a Radeon VII still, I don't know yet.

And certainly we are all doomed, I agree with that.
[automerge]1585402892[/automerge]
Did you upgrade just now? I mean today?
There might be going on some database refreshings like Photos DB or something. It might slow you down for a while.
 

johnbono

macrumors member
May 7, 2019
30
28
What CPU upgrade does anyone recommend that would be much faster at a noticeable difference? The current CPU in my Mac Pro 5,1 is the 3.2 GHz Quad-Core Intel Xeon. Will an upgrade be worth it?

Upgrading to a hex core cpu should net a 40% to 50% increase in cpu performance, all things being equal. The cost of the chip is $40 on ebay. I've also heard that if you only populate three memory sticks(24MB), the cpu can take advantage of triple channel memory. YMMV.
 

MarkC426

macrumors 68040
May 14, 2008
3,700
2,097
UK
I have one installed.


Application launch slow now with the Mojave update. I think it's just the CPU and the video (AMD Radeon HD 7950 3 GB) on my lg 4k is sluggish.
Have you tried dropping the screen resolution to see if it is the gpu being overtaxed.
 

tsialex

Contributor
Jun 13, 2016
13,455
13,602
The SSD upgraded was about 3 years ago and so was the AMD Radeon HD 7950 3 GB.
3 years go NVMe didn't exist outside datacenters, are you sure you have a NVMe SSD? Even if you have, today's 970 PRO or EVO+ have 4x more throughput than the common models from 2017.
 

AlDavis

macrumors member
Original poster
May 7, 2007
64
5
Have you tried dropping the screen resolution to see if it is the gpu being overtaxed.
Yes I tried it, but the CPU fans stays at 800.
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3 years go NVMe didn't exist outside datacenters, are you sure you have a NVMe SSD? Even if you have, today's 970 PRO or EVO+ have 4x more throughput than the common models from 2017.
I understand now because I didn't before regarding SSD. Maybe I can get another SSD.
Device Name: INTEL SSDSC2CW180A3
Media Name: AppleAPFSMedia
Medium Type: SSD
Protocol: SATA
Internal: Yes
 
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kohlson

macrumors 68020
Apr 23, 2010
2,425
737
There are lots of threads (even sticky ones!) that talk about the benefits of various upgrades. I upgraded my cMP 4/5,1 from a 4x2.93 to 6x3.33, and it terms of day-to-day "feel" there was no difference. For video workflows it made a big difference. In my opinion the biggest single performance improvement I made was a SATA SSD. Later, the NVMe mades a difference in specific areas, but in terms of "feel" it's on par with what the SATA SSD did. I'm not suggesting that a SATA SSD is the right choice today. only that when I installed one 3+ years ago it was awesome.

With the RX580 I drive 2x HD and 1x UHD (running at 1440p) monitors. No problem.

So as those above have said, all depends on what you're trying to do. I can see a case where if you do After Effects, 32GB is hardly anything. But you could improve on that, too. All depends on what you're trying to do.
 

macinPr1mus

macrumors newbie
Mar 21, 2020
27
1
I started with a solo quad 2.86 I think it was 4,1. I went with a 2x2.26 tray, upgraded to 5,1 then bought the 3.33x2 (6 core) upgrade and it has been great. Super happy with it.
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I also have the SSD boot disk, not sure if I want to spring fo NVME really... like, will it matter?
[automerge]1585437324[/automerge]
Also have the Radeon 580x now and it made a huge difference as well. All in all, machine is about 3x as fast as it was.
 

macinPr1mus

macrumors newbie
Mar 21, 2020
27
1
Here's my latest Geekbench, went up a little actually with the Noctus Thermal Paste and fans.
 

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AlDavis

macrumors member
Original poster
May 7, 2007
64
5
Also have the Radeon 580x now and it made a huge difference as well. All in all, machine is about 3x as fast as it was.
Do you have a boot screen with the Radeon 580x? If so, where did you purchase it?
 

AlDavis

macrumors member
Original poster
May 7, 2007
64
5
Here's my latest Geekbench, went up a little actually with the Noctus Thermal Paste and fans.
I just went to Geekbench and my results were not good. ?
Screen Shot 2020-03-28 at 7.34.18 PM.png
 

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macinPr1mus

macrumors newbie
Mar 21, 2020
27
1
Is that Geekbench 5? I'm running Geekbench 4 still as I'm still on High Sierra.
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Each little bit helped my score.

Going to dual processors
Adding more RAM
Upgrading to 1333 RAM
Upgrading to 3.33 GHz
Only using triple addressed RAM (3 slots per processor)
 

mikas

macrumors 6502a
Sep 14, 2017
900
649
Finland
I just went to Geekbench and my results were not good. ?
If upgraded to X5680 3.33 GHz (and 3x16GB) you would get something like:
MP41-SC33_48_1066.png

So single core would be up 7%, and multicore 59%. That's geekbench, real world tests with apps ofcourse is what matters the most.
 
Is that Geekbench 5? I'm running Geekbench 4 still as I'm still on High Sierra.


1585458968121.png


I have Geekbench 5 on High Sierra...

I went with the W3690 since I have a single CPU tray (this chip cannot be used in the dual tray). Same results as everyone else here, day to day is the same, but intensive tasks that take advantage of all the cores are noticeably faster.

When you go to the faster CPU (from the base 2.8 GHz), you also get a faster bus speed (1333 MHz instead of 1066 MHz). However, one of my sticks of RAM (3 x 4 GB because of the interleaving) was old, and this held the bus speed back. Scores improved slightly after I replaced the slow stick.

Biggest day to day speed improvement is absolutely an SSD. A few months ago, my OS install got corrupted somehow, so I had to boot from an old copy of 10.12 on the hard drive. That really sucked. It felt like using an old iBook or something.

I am completely frozen when it comes to upgrading the GPU. I want boot screens and I have a 4K monitor. The threads are too long now unless there is some new summary thread I don't know about.
 
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