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Windows 7: RAM and AMD vs Intel


20 Jan 2013   #1
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 
RAM and AMD vs Intel

Note the speed of the RAM in each of these pictures. While the AMD is at 3.14 GHz and the Intel is 2.2GHz, the RAM speed is much higher with Intel. Yes, I know the AMD has 1600 and the Intel is 2133, but this is a huge difference. The true RAM frequencies are 800 and 1066 respectively, only 266MHz difference.
RAM in the Intel rig is 13,264MBs faster. I'm guessing it is a better memory controller in the Intel CPU.

RAM and AMD vs Intel-memtest-amd.jpg RAM and AMD vs Intel-memtest-intel.jpg

EDIT: This is just for info.



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20 Jan 2013   #2

Win7 Home Premium x64 SP1
 
 

Am i missing something?
The intel would be better as it has twice the amount of memory aswell as it being faster memory. Plus the Intel chip is newer than the AMD one.
If you were comparing the same ram in both systems then wouldn't that prove your point better?
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20 Jan 2013   #3

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate SP1 X64 (Windows 8.1, Linux Mint, Windows XP and others in VM)
 
 

Intel has a much better memory controller. Intel has always produced better numbers than AMD systems for ram. I am only assuming it is the memory controller, could be something with the boards too, I guess. I don't think the amount of ram has anything to do with the speed of the ram. Open an elevated command prompt and run winsat mem.

EDIT: Heck Gary. I didn't realize it was you. You already know the answer.
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20 Jan 2013   #4
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

Ryan, Steve, I was posting just to show how RAM runs so much faster on an Intel board. Explains why our Intel rigs go lickety-split. I suspect its all tied together, CPU and chipset. Maybe later I'll slap the 1600 in the Intel machine to see how it compares, That would make sense. I drop the darn thumbscrew that hold the sides on though.
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20 Jan 2013   #5

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate SP1 X64 (Windows 8.1, Linux Mint, Windows XP and others in VM)
 
 

Gary, when I answered, I didn't realize it was you asking, or I would not have replied.
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20 Jan 2013   #6

Windows 7 Professional 64bit SP1
 
 

I know some Asus motherboards read the memory banks differently and that adds some performance, something like 200MHz. Memory controller and motherboard will have a lot to do with memory performance.
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21 Jan 2013   #7

Win7 Home Premium x64 SP1
 
 

My reply wasn't to disagree with what you were saying chap. We all know Intel are hands down the top dog when it comes to cpu's/ mem controller's
I just thought comparing the same would have been more apropriate :P

Lols @ Steve not noticing who made the post, Tut Tut!
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22 Jan 2013   #8
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

OK, you all got me curious about how the RAM would run if I swapped the RAM between machines, so here is the result. Both sets are GSkill Sniper, the one from the AMD is 1866 1.5V, the Intel's RAM is 2133 1.65V.
The RAM speeds, according to memtest was unchanged even though for the switch I ran both sets at 1600 even tightening timings for the AMD rig.
Apparently the RAM frequency has little or no effect on how fast it runs in the machine. It does show a large difference with winsat mem though.
The AMD system ran about 15,100 both times but the Intel dropped from 28,500 to 22,100 with the 1866 RAM.

Here are the memtest pics, the top ones are after the switch, the lowers are the same as in the OP.

RAM and AMD vs Intel-mem-compare.jpg
(Rt click,open in new tab/window, click again to see full size)


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23 Jan 2013   #9

Microsoft Windows 8.1 Enterprise 64-bit
 
 

Those results do not surprise me at all...
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23 Jan 2013   #10

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate SP1 X64 (Windows 8.1, Linux Mint, Windows XP and others in VM)
 
 

Quote   Quote: Originally Posted by ganjiry View Post
My reply wasn't to disagree with what you were saying chap. We all know Intel are hands down the top dog when it comes to cpu's/ mem controller's
I just thought comparing the same would have been more apropriate :P

Lols @ Steve not noticing who made the post, Tut Tut!
Yes, you're right. But in my defence, he changed his avatar. What I have found strange is my Maximus board. I really haven't tried overclocking it, but I can put almost any speed or timings in and it runs fine, and passes memtest. So far, everything I have put in just runs fine. It's mostly been underclocking, but I have lowered the timings considerably and it runs no matter what I put in. I have had Intel boards before that would never do that. Maybe I'll play with it a little more when I put it back together.
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 RAM and AMD vs Intel




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