Better to run your system with less RAM than would be ideal for best performance than to struggle with flakey RAM. Bad RAM will cause you nothing but grief, and while it's not guaranteed that RAM from a 'cheap parts vendor', getting bad RAM is more likely from such a vendor. If you can't afford RAM from a reliable vendor (search this forum for 'RAM UK' and you should find a number of recommendations), hold off until you can afford to buy quality parts. There's a reason why it's cheap, usually because it won't pass anyone else's certification tests (such RAM is referred to in the industry as 'floor sweepings'). Mac Pro models with 8 core processors operate memory at 2666MHz. All memory included with your Mac Pro is 2933MHz. Taking a bunch of the results here, I found that the 8-core M1 Pro MacBook Pros hit an average of 9,803.6, while the 10-core MacBook Pro averaged 11,852.

LR-DIMMs for configurations of 384GB (6圆4GB) or more. 'Don't buy the cheapest RAM you can find. Configured from Apple, Mac Pro models include the following DIMM types: R-DIMMs for configurations up to 192GB (6x32GB). I found this answer in a apple forum thread: But now i dont want to spend too much for this old computer. The MacBook Pro 14-inch (2021) with an 8-Core CPU, 14-Core GPU M1 Pro with 16GB unified memory and 512GB SSD storage starts at 1,999 / £1,899 / AU2,999, (1,899 for education), and the more. I spend money for my Kingston RAM in 2009 and it was quality stuff.

The question is, if this cheap RAM is trustworthy. You mean the 3,1 hardware limits it speed anyway? Ok, then i will go for this ebay offer, 159€ for 64GB sounds fair.

8 core mac pro 3.1. 28gb ram