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Mac Pro 2009 12 core slow compared to 2009 6 core

Both of them got the same X5670 (both of them upgraded to 5,1) - basically the same machines - the one difference is single and dual CPU.


In Geekbench 4:


6 Core got about 14.000 points

12 Core got barely 19.000 points


I was expecting around 28.000 or with some loss 27.000 - it is stunning 8000 points less - this is the speed of the latest MacBook Pro 13 TouchBar.

Mac Pro, macOS High Sierra (10.13.2), 2009 but 5,1

Posted on May 25, 2018 2:16 AM

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10 replies

May 25, 2018 8:35 AM in response to the_bart123

It is very difficult to keep that many cores busy at once. You will not likely see a doubling in processing power just by doubling the number of cores.


But DO compare your results to other users' results on the geekbench web site. This may tell you whether your results are out of line.


You may be running too much invasive software at the same time. If you run etrecheck, its reports will tell you want is eating your processing power:


User tip: Using Etrecheck


You are encouraged to Use the "Share" Icon and Paste its report to a reply on the forums -- no user-identifiable information is included in the report.

May 28, 2018 11:24 PM in response to the_bart123

Thats about right,

I had an HP z800 with Dual xeon x5670 and 48gb ram and it geek benched only about 22,000 running Windows-10.

OSX will score lower, But OS X is very stable and reliable . Where Win-10 updates always require reboots.

And Win-10 browser ( edge ) has memory utilization problems.


You can configure boot camp and install MS-Win-10 on your computer and see for yourself.


MacOS Sierra is more reliable and stable.


So a geek bench score of 19,000 to 22,000 is about right for those CPU's


My OEM 2009 Mac Pro with dual quad cores ( 8-cores, 16-threads ) only score about 16,000


I was considering updating the CPU buy did not because it did not appear worth the money.


Did you flash the firmware to 5,1 and put faster ram?


PC-1333 ram ?

32GB Kit 4X 8GB DIMM Apple Mac Pro Mid 2010 A1289 MacPro5,1 Memory Ram 5053772970984 | eBay

More ram and a good graphics card is however.


32gb of ram and an AMD RX580

Sapphire PULSE Radeon RX 580 8GB GDDR5 PCI-E Dual HDMI / DVI-D / Dual DP OC w/ Backplate (UEFI), 100411P8GOCL - Newegg.c…



Check here:

x5670 mac - Geekbench Search - Geekbench Browser

May 30, 2018 4:35 AM in response to alex7375

It looks only Geekbench cannot take advantage of this 12 core - Cinebench can.


And it is proving that it is bit slower than..... latest iMac Pro.


And I've learned that every single application/game which need such a power - will take it - no matter what.


Apps like Safari will not take advantage of 12 core because... it does not need such a power

Mac Pro 2009 12 core slow compared to 2009 6 core

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