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Asus P8Z77-V vs Gigabyte Z77X-UD3H - Page 2

post #11 of 14
Thread Starter 
Even if I won't use the WiFi on the Asus is it still worth it?
post #12 of 14
Quote:
Originally Posted by Imprezzion View Post

Hmm, quite the odd thing here.
The UEFI was my fault, I was confused with the Z68s indeed.
LLC and VRM's however, well all I can say is that my 2600k on my p8z77-v does 4.8Ghz on 1.416v and at all max in DIGI+ VRM and LLC set to Medium the idle and load vcore is pretty much equal and stable.
My CPU on my mates Z77X-UD3H struggles to do even 4.6 cause whatever we try in settings like LLC the vdrop is huge and load vcore is anything but stable.
Makes me wonder if his boards defective...
Plus, we cant find the DRAM CTRL Ref. voltages on the Gigabyte.

It can be many things besides VRM... Like an old BIOS. You have 2600K, and Gigabyte Z77 boards had problems with them on earlier UEFI versions.
DRAM CTRL ref. Is one of these for sure.
Quote:
Originally Posted by ben1066 View Post

Even if I won't use the WiFi on the Asus is it still worth it?

With Asus you also get Realtek audio, and 2 more SATA 3 ports. I personally would take UD3H (at least with the USA prices) with better VRM (6 phases) any day over Asus, because you can add better audio and additional SATA ports with expansion cards, but you can't change VRM without changing the motherboard.

But again Asus VRM (4 phases) isn't bad either, and shouldn't stop you for air/water overclock.

http://sinhardware.com/index.php/vrm-list
Edited by DeXel - 8/27/12 at 10:46am
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post #13 of 14
Thread Starter 
post #14 of 14
That's how manufactures lie to you for marketing purposes.

If P8Z77-V Pro has 8 phases, then my board has 12.

Although CHL8328 PWM supports 8 phases, Asus used just 4 of them on many boards with doublers to get 8 phases.

Doubler takes the switching frequency of the phase and cuts in half, so in the end you still have a performance of 4 phases.

It's like a usb hub one may say. You are still limited to the bandwidth of one USB ports when you use hub, aren't you?

UD3H uses all 6 phases of IR3567, but UD5H uses doubler along it, so you get "12" phases.

Now Asus P8Z77-V Pro uses 6 phases out of 8 available on CHL8328, but again with doublers so you have "12", and so on.

Here is the list of some motherboards and what they use anyway.

Also it's not all about phases, its about their quality. IR3567 and CHL8328 both are quality PWM, but I can't comment on which is better (when they both use the same # of phases since CHL is 8 phase PWM after all). These boards also use different mosfets that can also affect overclocking.
Edited by DeXel - 8/27/12 at 11:42am
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