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ram for 2010 Mac Pro 2.8 Quad, 1066 or 1333?

P

parkie

macrumors member
Original poster
Oct 31, 2007
56
0
I've just ordered some 1066 but have just read about being able to update to hex cores and 1333. should I have ordered 1333 stuff instead ready for the a hex core at a later date?

hope you can help

p
 
parkie said:
I've just ordered some 1066 but have just read about being able to update to hex cores and 1333. should I have ordered 1333 stuff instead ready for the a hex core at a later date?

hope you can help

p
Click to expand...

Yes. All 2010 Mac Pros actually ship with 1333MHz memory and that is the only speed supported officially.
 
thanks, all sorted now. The crucial memory finder selected 1066 stuff for my 2010 quad core. now the only question is, how much to get. hmm
 
parkie said:
thanks, all sorted now. The crucial memory finder selected 1066 stuff for my 2010 quad core. now the only question is, how much to get. hmm
Click to expand...

I grabbed a 3x4GB kit - great speed performance increase and allows me to add another 4GB stick in there at a later time if I wish.
 
TheDoc said:
I know Apple says that it ships with 1066, but almost every report I've seen (including my own machine) reads as 1333.
Click to expand...

Um. I'm not Apple... I clearly stated that MY mid-2010 quad came with 1066 RAM. So what exactly are you saying?
 
first month of 2010 quad 2.8 machines have 1066. last months has 1333. I have 1066. I went out and grabbed 16gb of 1066 really quickly. So If I want to upgrade to a hex I am going to need to upgrade my ram. When the time comes I may trade the 1066 off. Or I may get a new mac pro depends on the price of a hex core in 2013. (apple care runs out).
 
c:v said:
Um. I'm not Apple... I clearly stated that MY mid-2010 quad came with 1066 RAM. So what exactly are you saying?
Click to expand...

Easy tiger - just reiterating to the OP that 1333 sticks are recommended and that even Apple is shipping them, despite saying that they are shipping 1066.
 
philipma1957 said:
first month of 2010 quad 2.8 machines have 1066. last months has 1333. I have 1066. I went out and grabbed 16gb of 1066 really quickly. So If I want to upgrade to a hex I am going to need to upgrade my ram. When the time comes I may trade the 1066 off. Or I may get a new mac pro depends on the price of a hex core in 2013. (apple care runs out).
Click to expand...

The Hex will work fine with 1066 memory! The difference in any real world app speed will be ~1% (compared to 1333) when running the slower mem.

cheers
JohnG
 
c:v said:
Um. I'm not Apple... I clearly stated that MY mid-2010 quad came with 1066 RAM. So what exactly are you saying?
Click to expand...

Did you look up the part number online, because that is what I thought at first glance?

I saw PC3-10600EE and my mind jumped to 1066.

But my memory of JEDEC is just faulty. PC3-10600 is 1333 and PC3-8500 is 1066.

Of course YMMV.
 
Model Name: Mac Pro
Model Identifier: MacPro5,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 2.8 GHz
Number Of Processors: 1
Total Number Of Cores: 4

I just put 1066 in, is it true I can swap this out for 1333?

I just purchased this last week.
 
frocco said:
Model Name: Mac Pro
Model Identifier: MacPro5,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 2.8 GHz
Number Of Processors: 1
Total Number Of Cores: 4

I just put 1066 in, is it true I can swap this out for 1333?

I just purchased this last week.
Click to expand...

Either mem type will work but only at the slower speed due to the Quad-Core.
 
The OEM processor is the W3580, which only runs at 800 or 1066MHz. You can use faster RAM, but as stated, it will downclock.

Now if you swap out the CPU for one that can utilize 1333MHz RAM, such as the W3680, then it can run it at max speed. ;)
 
brentsg said:
Did you look up the part number online, because that is what I thought at first glance?

I saw PC3-10600EE and my mind jumped to 1066.

But my memory of JEDEC is just faulty. PC3-10600 is 1333 and PC3-8500 is 1066.

Of course YMMV.
Click to expand...

No, I just checked system profiler.
 
parkie said:
I've just ordered some 1066 but have just read about being able to update to hex cores and 1333. should I have ordered 1333 stuff instead ready for the a hex core at a later date?

hope you can help

p
Click to expand...

Actually I just recently purchased a Mac Pro (quad core) and it came with 1066 memory. You could buy the 1333 but if you have the quad core (nehalem) they would downclock to 1066. The only advantage of buying the 1333 now is that if you ever upgraded the CPU to a hexa core (westmere) then you wouldn't need to buy new memory.
 
c:v said:
No, I just checked system profiler.
Click to expand...

System Profiler will always say 1066 because that is what it is being clocked down to. If you want to know for sure, you'll have to look at the physical sticks themselves.
 
Need advice I have 8GB of ram inside of my 2010 Mac Pro 12-Core, How Much ram is recommended, People say it's better to have 1GB of ram for every core and sense the 12-core has 24 virtual cores do you think it's wise to get 24GB of ram to put in the Mac Pro?
 
skyline r34 said:
Need advice I have 8GB of ram inside of my 2010 Mac Pro 12-Core, How Much ram is recommended, People say it's better to have 1GB of ram for every core and sense the 12-core has 24 virtual cores do you think it's wise to get 24GB of ram to put in the Mac Pro?
Click to expand...
What are you doing with the system (software <and what's running at the same time that's actually active>, file sizes, ...)?

Without detailed information, it's just a wild guess that could cause you to waste money, so please be as precise as possible. ;)
 
Re: How much?

skyline r34 said:
Need advice I have 8GB of ram inside of my 2010 Mac Pro 12-Core, How Much ram is recommended?
Click to expand...

You can install up to 8x8GB in the 12core, best to install matched kits, sets of three (aka triple channel) slightly "faster" than sets of 4. Check out the app "Do I Need More Memory?" and check out MacPerformanceGuide.com for more info :)
 
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