Im thinking of either getting the 780i mobo or 790i mobo
But I cant decide which one, is their a big difference between the two motherboards?
Do they overclock just as well?
If i went with the 780 I I could use the money I saved on mobo and buy 4gb of corsair dominitor ram.
But if i go with the 790i I can just afford a 4gb kit of ocz platinum ram.
Any advice, recommendations? share your knowledge please! :)
12 answers Last reply
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  1. Go with the least expensive option. Won't make that much difference.
  2. Well either way i'd be spending the same
    with the 780i i;d be spending the rest on corsair dominator ram
    which is like 5-5-5-15 and 1066hz
    with the 790i i'd be getting the ocz ddr3 ram which is 7-7-7-20 and at 1333hz i think
    unless theirs a better option of ram for the DDR3

    HELP Appreciated, thank you! :)
  3. Any help on this would be great!
  4. Ram doesn't generally limit system, only if you have not enough of it. (GB) (not DDR2 vs DDR3) hard drives = good limit to what you do, I'd personally go with DDR2, DDR3 = showoff to say LOOK WHAT I GOT!!
  5. I agree with bloodymaze
  6. 790i still has issues...
    780i is pretty solid these days...
    i dont see how you would be spending the same with the 790i...the board is more expensive... and the ddr3 1333 will still be more expensive than a 4gb 1066 mhz 5-5-5-15 ddr2 kit.
  7. Why are you getting the 780/790 period? P35/X38 is where its at. No limited SATA connections, no SATA corruption while overclocking. (although I hear they might have fixed that.) They are just better boards overall.

    At this point in time, there is no real need for DDR3. I haven't seen any benchmarks with DDR3 that make me think its worth the price increase over DDR2. Considering how well DDR2 overclocks, it simply isn't needed.
  8. Those timings on the 1066 MHz DDR2 are not that great, just get some good quality 800 MHz RAM and OC it (even better get one with low timings (4-4-4-12?)).
  9. The only reason to get DDR3 is if you want to be able to *possibly* use the memory on your next upgrade round. Of course there is no guarantee, since things change fairly quickly...

    Anywho, IMO high speed RAM and low timings are mostly a waste of money, there are other things that you can spend the money on that will make a greater performance difference in most instances.
  10. 780i (less so) and 790i are both terrible. Do yourself a favor and just skip both of them altogether.

    Unless you overclock your CPU past FSB1600 (400) you don't need DDR2-1066 RAM.

    Look at ATI 4870 video cards, the X2 coming out in August takes the GTX280 to task. As far as motherboard look at X48 boards with DDR2-800.

    FYI: Corsair Dominator RAM is garbage. You can do much better for less elsewhere.
  11. why is DDR3 supposed to be better if it's timing is much higher?
  12. DDR3 has higher available bandwidth.
    DDR2 mostly tops out @ PC2 8500 (with some special OC sets up to PC2 9600)
    DDR3 starts out @ PC3 8500 (DDR3 1066) bandwidth and you can get PC3 10600 (DDR3 1333), 12800 (DDR3 1600), 14400 (DDR3 1800) and 16000 (DDR3 2000) bandwidth ratings. You end up with higher latency for that bandwidth though.
    PC2 8500 @ CL5 will be faster than PC3 8500 @ CL7.
    Prices on DDR3 have dropped pretty fast DDR2 and DDR3 prices
    Of course if you have a lot of RAM bandwidth you have to remember the other end of the FSB where the CPU will usually have less bandwidth. It doesnt really give you any significant advantage if the bus is wide at one end and narrow on the other end.

    DDR3 is better suited to the Nehalem motherboards where the front side bus is done away with in favor of QuickPath and memory controller on the CPU instead of the Northbridge, and the RAM is setup in 3 banks instead of two.
    The current X48 1600FSB has a theoretical bandwidth of ~12GB/s and QuickPath X58 motherboard will be a bit more than double that theoretical bandwidth.
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