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The Truth about i7 (1366) memory, both dual channel vs tri channel - Page 3

post #21 of 42
cool, btw,

over at the other thread on the indian guy's PC problems people are still going on about dual vs tri channel RAM even after the first few pages were on it and it was resolved that his problem had nothing to do with RAM

can you please clear up some misconception XD its just basically spam now over there
post #22 of 42
That.. Is quite revealing.. I'm really surprised to see such a small difference between dual and triple channel on X58. Still funny how it takes a P55 with DDR3-2000 dual channel, to match the performance of X58 with DDR3-1600 triple channel..
    
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post #23 of 42
Quote:
Originally Posted by DevilGear44 View Post
Kinda makes 1156 a lot more appealing.
Not with i9 coming out.

Quote:
Originally Posted by d-block View Post
nice thread. i'm glad i found this, as i am contemplating 1156 or 1366. so that sums up the memory factor. how does the pci x lane affect in the real world?
Considering the 5870 pretty much saturates a 2.0 x8 slot (PCie 1.0 x16), you'd have to assume that the newer tech is going exceed that. So if you plan on running 2 really powerful GPUs', you're better off getting a 1366 x58 board.




Nice write up Eric.

It's interesting that it didn't make much difference in some of the benchmarks. On my sig rig, I could increase my 3dm06 score by almost 700 points by tightening the timings.

I'll have to fiddle around with mine when my board shows up.
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post #24 of 42
Excellent post OP!
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post #25 of 42
I saw someone *****ing about a new AMD processor not having triple or quad channel ram.
I laughed. DDR3 is already quad channel DDR. Dual channel DDR2.
When the 40 and 30nm 4 GB single modules show up. Those will be improvements.
Core i7 has so much cache they should really leave worrying about ram to the AMD guys where it actually matters to us.

Oh pay attention to QPI link speeds. It's important to intel integrated video not sucking so bad. Apparently they have it high enough speed on Sandy Bridge to play Sims 3 and World of Warcraft at decent frame speeds.
Edited by Hephasteus - 3/4/10 at 9:28pm
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post #26 of 42
Quote:
Originally Posted by Hephasteus View Post
I saw someone *****ing about a new AMD processor not having triple or quad channel ram.
I laughed. DDR3 is already quad channel DDR. Dual channel DDR2.
DDR3 isn't quad channel. It's clock multiplier is four, but this is something completely different.

Socket AM2/2+/AM3 support, at most, dual-channel.

Quote:
Originally Posted by Hephasteus View Post
Core i7 has so much cache they should really leave worrying about ram to the AMD guys where it actually matters to us.
Phenom II X4s actually have more usable cache.
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post #27 of 42
Quote:
Originally Posted by Blameless View Post
DDR3 isn't quad channel. It's clock multiplier is four, but this is something completely different.

Socket AM2/2+/AM3 support, at most, dual-channel.

Phenom II X4s actually have more usable cache.
No DDR's prefetch buffer width is 2 bits, DDR2's is 4 bits. DDR3's is 8 bits.
A single DDR3 SIMM is the same as running dual channel DDR2.
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post #28 of 42
Could I run the tri channel modules off of my 1136 board in dual channel on an 1156 board?
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post #29 of 42
Quote:
Originally Posted by Hephasteus View Post
No
Yes.

Quote:
Originally Posted by Hephasteus View Post
DDR's prefetch buffer width is 2 bits, DDR2's is 4 bits. DDR3's is 8 bits.
That's true, in addition to what I said.

Quote:
Originally Posted by Hephasteus View Post
A single DDR3 SIMM is the same as running dual channel DDR2.
No, not on the same architecture it's not.

Quote:
Originally Posted by h2on0 View Post
Could I run the tri channel modules off of my 1136 board in dual channel on an 1156 board?
Yes, it would be dual+single channel.
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post #30 of 42
Cool, I'm just gonna run 2modules x 2gb ea. I wanna get a i3 530 and asus p7p55d-e lga for my kids and piece the rest together with spare parts from my alienware upgrades. My kids are killing me with always breaking laptops.

oh and +rep thanks for your help. I really appreciate the fast response.
Edited by h2on0 - 3/15/10 at 2:58pm
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