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Need some help choosing motherboard

I'm looking to purchase a new motherboard so that I can use SLI (2x GTX 660) and do some minor overclocking later on, I don't know much about motherboards but these ones seem pretty good. Which one of these is the best? Is any of them good?

ASUS P8Z77-V LK
ASUS P8Z77-V LE PLUS
Gigabyte GA-Z77X-D3H

What is the difference between a PCIE 16x and 8x slot? Does it affect SLI performance?

I currently have:
CPU: Intel Core i7 3770 3.4Ghz
Graphics card: MSI Geforce GTX 660 2GB OC TwinFrozrIII
RAM: 12GB 1333Mhz (3x4GB)
Motherboard: Acer Aspire X3995
Drives: 1TB 7200RPM HDD + Samsung 840 EVO 120GB
PSU: XFX Core Edition 850W 80+ Bronze
6 answers Last reply Best Answer
More about choosing motherboard
  1. I believe the ASUS P8Z77-V LE PLUS is the best among the three. About the 16x and the 8x slot, it's actually like this. There are is a "16x + 4x" SLI and an "8x + 8x" SLI. The "8x + 8x" SLI usually perform better. However, the difference is usually really small so they're practically the same performance.
  2. james77 said:
    I believe the ASUS P8Z77-V LE PLUS is the best among the three. About the 16x and the 8x slot, it's actually like this. There are is a "16x + 4x" SLI and an "8x + 8x" SLI. The "8x + 8x" SLI usually perform better. However, the difference is usually really small so they're practically the same performance.


    Thanks for the response.
    How do I know which slots are 16x + 4x and 8x + 8x?
    What about CPU overclocking? Will the motherboard (ASUS P8Z77-V LE PLUS) be able to do a bit of that?
  3. Best answer
    Qypav said:
    james77 said:
    I believe the ASUS P8Z77-V LE PLUS is the best among the three. About the 16x and the 8x slot, it's actually like this. There are is a "16x + 4x" SLI and an "8x + 8x" SLI. The "8x + 8x" SLI usually perform better. However, the difference is usually really small so they're practically the same performance.


    Thanks for the response.
    How do I know which slots are 16x + 4x and 8x + 8x?
    What about CPU overclocking? Will the motherboard (ASUS P8Z77-V LE PLUS) be able to do a bit of that?


    I believe that the first PCIE slot is 16x and the second one is 8x. But if you put a video card on both of them, they will perform as "8x + 8x" so you have the better kind of SLI in that motherboard. And about the overclocking, yes the ASUS P8Z77-V LE PLUS is pretty good when it comes to overclocking.
  4. Take a look at the Rock's Z77 Extreme 4 does 8x8, handles DRAM great, the best selling mobo in the Z77s for gaming and business also - all round great mobo
  5. james77 said:
    Qypav said:
    james77 said:
    I believe the ASUS P8Z77-V LE PLUS is the best among the three. About the 16x and the 8x slot, it's actually like this. There are is a "16x + 4x" SLI and an "8x + 8x" SLI. The "8x + 8x" SLI usually perform better. However, the difference is usually really small so they're practically the same performance.


    Thanks for the response.
    How do I know which slots are 16x + 4x and 8x + 8x?
    What about CPU overclocking? Will the motherboard (ASUS P8Z77-V LE PLUS) be able to do a bit of that?


    I believe that the first PCIE slot is 16x and the second one is 8x. But if you put a video card on both of them, they will perform as "8x + 8x" so you have the better kind of SLI in that motherboard. And about the overclocking, yes the ASUS P8Z77-V LE PLUS is pretty good when it comes to overclocking.


    Ok, great. Just ordered the ASUS P8Z77-V LE PLUS and another GTX 660. Thanks for the help.
  6. Tradesman1 said:
    Take a look at the Rock's Z77 Extreme 4 does 8x8, handles DRAM great, the best selling mobo in the Z77s for gaming and business also - all round great mobo


    They don't sell that board where I live. Thanks though.
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