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6gb triple vs 8gb double

post #1 of 8
Thread Starter 
Sorry, kind of new to the computer building game. I apologize if this seems too noobish :-)

I started building a computer several months back. Looks good, runs pretty good. But I have
http://www.newegg.com/Product/Produc...-224-_-Product
in my p55 i7-870

was thinking about upgrading to the 8gb vengeance ram cause its on sale right now on newegg.
http://www.newegg.com/Product/Produc...-345-_-Product

1. would i get any performance boost?
2. and am I doing something "wrong" by using triple channel memory in a duel channel machine?

Please let me know. Thanks
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post #2 of 8
Correct me if I'm wrong, but the P55 chipset is not triple channel capable. Therefore, you're currently running in single channel mode.

I'd say 8GB over 6GB regardless. However, that's from scratch. If you already have 6GB, the move 8GB will be smaller. I'd just grab another single stick of the same stuff you have (need to find the right timings and such), so you get dual channel. Either that, or sell your current RAM and get the 8GB.
post #3 of 8
you bought triple channel ram for the p55 chipset?

    
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post #4 of 8
^ yea p55s are dual channel memory capable... so you are running single channel right now... you will definitely see a big improvement

You aren't fully taking advantage of the set of ram you bought... those are for x58 mobos or mobos that have triple channel capability.
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post #5 of 8
The 6GB will run in tri-channel mode and the 8GB will run in Dual channel mode. There has been test where they tested the difference and there wasn't much difference between dual and tri channel mode. Do you really need the 8GB unless your actually running programs that will need that much memory 6GB should be more then enough. That being said the 6GB kit will run better because the timings are better then the 8GB kit so I stay with the 6GB.


Sorry I thought you were using and X58 chipset. If you have all 3 in the board is running in single channel. Running in Dual channel will give you a big improvement. If you remove one dimm and run with 4GB it will run faster then the 8GB.
Edited by ounderfla69 - 5/28/11 at 6:13pm
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by xPrestonn View Post
you bought triple channel ram for the p55 chipset?

no, i GOT triple channel memory. So to buy some wouldn't really be a financial thing for me. Just wondering if I should save money or not really.
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post #7 of 8
Quote:
Originally Posted by draterrojam View Post
no, i GOT triple channel memory. So to buy some wouldn't really be a financial thing for me. Just wondering if I should save money or not really.
You don't really have "triple channel" memory, as there's really no such thing. It might be sold as a kit intended for/labeled as "triple channel", but that's it. All memory is identical in regards to "channeling". The chipset and/or MCH, not the memory, is what determines that.

That being said, your chipset/MCH is dual channel capable, not triple channel capable, so you're just running single channel with three identical modules. Other than less performance, nothing will be inherently "wrong" with it. With two or four (identical) modules, you will be running in dual channel mode and see a boost.

So, you have three options really.

You pick up another single module of the same speed/timings/voltage. Too bad Corsair doesn't sell those modules as single modules (at least not on Newegg). You could still pick up RAM of another brand/type so long as it's still 1600MHz and 9-9-9-24 and 1.65V, and you'll end up with more RAM, the same quicker timings, get dual channel, and be out less on the purchase price versus an entirely new kit, so consider this option somewhat of a compromise, but that depends if you want to mix/match RAM. It might be a gamble, but it usually it works. Right now, all newegg has in for DDR 1600MHz 8-8-8-24 single 2GB modules are these Crucial offerings.

http://www.newegg.com/Product/Produc...odeId=1&name=8

A second choice is buying the kit you saw, and selling your current one. I'm not sure of the going price (maybe someone with an X58 setup and 6GB on a six slot board would entertain 12GB for cheap?).

The last option is doing nothing and staying with what you have, or perhaps even dropping to 4GB and two modules. This gets you dual channel and is free, but you lose RAM.
post #8 of 8
Hes not going to see a big improvement, or likely any real improvement, unless 6GiB of ram just isn't enough.

Also, it would be far more economical just to add another 2GiB stick to get 8, rather than replacing three sticks that work perfectly fine, likely at a loss.

Quote:
Originally Posted by Princess Garnet View Post
Correct me if I'm wrong, but the P55 chipset is not triple channel capable. Therefore, you're currently running in single channel mode.
LGA-1156 does not support triple channel, but three sticks has one stick in one channel, and two in the other, which in practice is only marginally slower than symmetrical dual, and only when more memory is being used than can be handled by two sticks. It's running in dual-channel asymmetric mode.

He's not running in pure single channel. That's physically impossible on LGA-1155/6 unless one channel's slots are left empty.

See pages 19-22: http://download.intel.com/design/pro...hts/322164.pdf

Also, the chipset is not an MCH and has utterly no bearing on anything memory related. The CPU and LGA-1156 socket itself are the limiting factors.
Edited by Blameless - 5/29/11 at 4:43am
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