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2 sticks, 2 gig each or 4 sticks, one gig each

post #1 of 4
Thread Starter 
what would the performance difference be between 2 sticks of 2gig each and 4 sticks of 1 gig each?

which set would run faster? if both sets have the same bonuses and run at same speed

thanks all
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post #2 of 4
i'd go with the 2x2 sticks because if you're going to oc, then I've heard some bad things about stress being put on the IMC (integrated memory controller) with all 4 memory slots being used...
post #3 of 4
2x2G sets are easier to OC and put less stress on the memory controller.
    
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post #4 of 4
From the EVGA board in a different topic, discussing why bios P05 for the 780i board disables SLI memory for anything more than 2 DIMMs (all previous bios versions allowed a person to enable 4 DIMMS with SLI.....it's no longer an option for P05).

Quote:
ORIGINAL: EVGATech_HugoA

It is possible for the board to override the restrictions set in place by the memory's EPP settings. Under normal circumstances (and with most boards), the memory itself won't allow you to enable SLI if you're running 4 sticks of RAM because the EPP profiles aren't IDENTICAL. As we all know, the motherboard can override this, however it can cause problems because the memory isn't tested to it's full specifications in 4-stick configurations (because of the extra load on the bus). This is why it's recommended to use the least amount of memory modules as possible (EG: 2x2gb instead of 4x1gb), because stability is a huge concern.

Regardless, I'm going to try and find out if this was an intended change or something that might be re-enabled in the future. Though keep in mind, if it's an intended change, then the above reason is why. And memory manufacturers also back the claim of memory tested in 2-stick configurations, and not 4. A few companies sell 4-stick kits which are tested to run at their rated speeds (usually 8gb and 16gb kits).

It's also important that note that SLI-Ready is nothing more than a RAM self-configurator, and as others have mentioned, you can achieve the same level of performance/stability by setting the RAM manually to whatever the RAM manufacturer recommends.
    
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