Test Setup

Gigabyte GA-X48T- DQ6
Standard/Overclocking/Benchmark Testbed
Processor Intel Core 2 Quad Extreme QX6800
   (Quad-core 2.93GHz 1066FSB 2x4MB Shared Cache)
Intel Core 2 Quad Extreme QX9650
   (Quad-core 3GHz 1333FSB 2x6MB Shared Cache)
CPU Voltage 1.200V ~ 1.450V
Cooling Water cooling: Swiftech Apogee GTX
PA120.3 Rad
3 X Laing DDC Ultra Petra Top pumps in series
3x Panaflo 120mm Fans 7-10V
Power Supply OCZ 1000W
Memory OCZ DDR3 PC3-14400 (DDR-1800) Platinum Edition
2x1GB XP, 4x1GB Vista 64-bit
Memory Settings 5-5-5-12 1N (266 and 333FSB)
6-6-6-18 1N (400 FSB)
8-8-8-20 1N (450FSB)
Video Cards MSI 8800 Ultra
Video Drivers NVIDIA 169.09 (XP), 169.25 (Vista 64)
Hard Drive Western Digital 7200RPM 250GB SATA 3/Gbps 16MB Buffer
Optical Drives Plextor PX-B900A, Toshiba SD-H802A
Case Lian Li -75
BIOS F3D
Operating System Windows XP 32-bit SP2
.

We decided to use our base QX6800 CPU with our standard tests run on the 9x multiplier to simulate the attractively priced Q6600 CPU and to compare against some of our previous benchmarking results. The QX9650 was used to cross-compare performance at relevant overclocks using our compact benchmark test suite. In this section of testing, we aim to remain within realistic cooling capacity temperatures and current CPU stepping capabilities. This better shows an overall picture of motherboard performance potential using widely available parts.

With such a vast array of overclocking BIOS functions at our disposal, we decided to stick with a single operating system environment for the overclocking tests. We selected Microsoft Windows XP SP2 due to its maturity, taking away some of the time burden looking for possible software level conflicts that may exist on a newer OS (though we ventured to run a compact Vista test suite for the non-overclocking benchmarks). The Vista tests were all run at board defaults, using an FSB multiplier combination of 9x333 and 4GB of memory with both processors.

We ran 1280x1024 resolution game benchmark tests in order to cross-compare CPU MHz related gains in our board specific tests. We utilize new drive images on each board in order to minimize any potential driver conflicts. Our 3DMark results utilize the standard benchmark resolution for each program. We run each benchmark five times, throw out the two low and high scores, and report the remaining score to reflect a repeatable average.

Since the Gigabyte GA-X48T-DQ6 is for the overclocker and gamer as opposed to typical internet browsing activities, we decided to take a different look at this board and focus on overclocking for this particular article. Please note the memory timings used at various overclocks are in the above table.

Board Layout and Features Vista 64-bit Benchmarks - Synthetic
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  • Ozlaw - Monday, June 23, 2008 - link

    I recently switched the inner workings of my computer from a Sriker Extreme, X8000 CPU and an 8800 GTX, to the Gigabyte GA-EX38T-DQ6, with an Asus HD 3870 X2 1gb (and I was about to add another in crossfireX, until I found out AMD was rolling out the 4000's series X2 early, actually possibly in Q3 of this year). If I had known, which is the story of my life and computers, that a newer chipset was coming out so soon, I would have waited for the 48T. The funny thing is that ever since I studied coomputer progaramming in college in the 70's, and began building my own computers when costs became parctical to do so, I suscribe to all the industry news but always miss something big.

    Oh well I can say that the 38T, since it was designed aroung quad core, including the extremes, instead of relying on BIOS updates to recoginize and work with critical hardware, such as the 680i in my old Striker Extreme was doing (I had the QX6850 in int for a time)in and of itself made an ennourmous difference in my computer's speed and functionality.

    THanks for a good article and now I am going to have to decide whether to buy a new motherboard when I buy the new graphics cards as I admit to being on of those weak early consumers of tech products, althhough I am getting better when it comes to Intel's cpu's now that they have become a CPU of the month club.
  • papatsonis - Wednesday, April 16, 2008 - link

    "(G)MCH Overvoltage Control

    Default voltage is 1.45V, and the available voltage scale provides an overvoltage of 0.025-0.775V. There an actual undervoltage of 0.2V from the BIOS set overvoltage. For example, as the stock voltage is set to 1.45V a BIOS setting of +0.50V would imply a voltage of 1.95V. However setting +0.50V gives an actual voltage of 1.75V, suggesting an undervoltage of 0.2V. "

    The default voltage of X38/X48 is 1.25v (and in the article explaining tRD values , states that also) , the gigabyte in fact OVERvoltages MCH , when set to normal , to 1.45volt , but when adjusting values, it sets correct values (multimetered) e.g. +0.125 ->~ 1.38v
  • Galvin - Monday, April 28, 2008 - link

    I dont have a volt meter. But I did verify thats what happening.

    I have the x48 ddr2 version. Normally the NB heatsink is too hot to keep my fingers on it. So if you run less voltage the heatsink should be cooler to the touch. Which is what happened. I set the overvolt for the MCH to 0.025 then rebooted. Waited a few min and I was able to hold my fingers to the heatsink without burning. I did this 2 more times to be sure.

    Surprised no one has found this before. That explains why the NB heatsink was crazy hot.

    Thanks
  • neat1 - Sunday, January 6, 2008 - link

    http://www.firingsquad.com/hardware/intel_skulltra...">http://www.firingsquad.com/hardware/intel_skulltra...
  • neat1 - Sunday, January 6, 2008 - link

    Does this board supp sli or is there still only crossfire support on the x48 chipset? (which would be kind of odd)
    Looking fwd 2 see the ASUS X48 tested
    Regard/neat1
  • Rajinder Gill - Sunday, January 6, 2008 - link

    Hi,

    Right now Nvidia has no plans whatsoever to allow SLI on the desktop Intel chipssets. Skulltrail may be the only exception to this. Of course, that's assuming Skulltrail ever gets released.

    regards
    Raja
  • Rob94hawk - Sunday, January 6, 2008 - link

    Benchmarks with skulltrail or just hype?
  • Rajinder Gill - Sunday, January 6, 2008 - link

    Hi Rob,

    Personally I have not seen anything of Skulltrail myself, Intel are notably tight-lipped about publishing anything. Of course we'd all love to have a play...lol

    regards
    Raja
  • kilkennycat - Friday, January 4, 2008 - link

    Is Gigabyte paying Anandtech for front-cover "pseudo-advertising"? I though Anandtech exclusively reviewed quality products. Seems as if the pre-fitering within Anandtech of products for review needs to be strengthened.

    This review is so full of wishful thinking about future BIOS updates (whhich may never materialize) that I want to scream. Surely there are computer-related products in a far more mature state begging for serious technical reviews?
  • Rajinder Gill - Friday, January 4, 2008 - link

    At least the preview/review let's people know what to expect at present. I guess I am wishful, because I hate to see good products go to waste via an inadequate BIOS. Immediate maturity with top-end performance boards (the reviews I concentrate on) is hard to find, almost impossible in fact. Occasionally we find a gem, when we do, we write about it. Not every board that comes down the channel is going to make the masses happy, especially in this segment. It's one of the toughest segments of all, the budget minded will never be happy with it. But then these products are not aimed at the budget segment at all. In the PC world there's no such thing as linear performance scaling per dollar. This board needed a 2 stage review, because fo the length of time the cascade cooled results can take. Where this may not be the typical approach, the performance boards are used by a percentage of this crowd. The rest is the more stable down to earth stuff which we endeavour to cover with the BIOS guides. It just so happens this all fell in with the Christmas season, when most companies go into shutdown.

    We review these boards in a way that the people who have the dollar or inclination to spend this kind of money will use them, no more, no less.

    regards
    Raja

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