Test Setup

The Intel 975X chipset fully supports the 820, 830, and 840 dual core Pentium D processors in both stock and overclocked conditions. This chipset also supports the upcoming Presler and Cedar Mill processor range. Dual core really makes a difference in certain multi-tasking scenarios, as was demonstrated in the dual core performance preview. If you are interested in how the various chipsets perform in a real world multitasking setup, please take another look at that review.

Performance Test Configuration
Processor(s): Intel Pentium 840EE (3.2GHz, 800FSB, Dual-Core, 2x1MB L2, HT) utilized for all tests
RAM: 2 x 512MB Corsair CM2X512A-5400UL revision 1.3 Settings- DDR2-667 as noted at (CL3-2-2-8)
Hard Drive(s): 2 x Maxtor MaXLine III 7L300S0 300GB 7200 RPM SATA (16MB Buffer), 1 x Maxtor MaXLine III 7L300R0 300GB 7200 RPM IDE (16MB Buffer)
System Platform Drivers: Intel Chipset Software - 7.2.2.1006
Video Cards: 1 x XFX 7800GTX OC (PCI Express) for standard tests
2 x MSI 7800GTX (PCI Express) for SLI test
Video Drivers: NVIDIA nForce 81.95 WHQL
NVIDIA nForce 78.01 Modified for SLI test
Operating System(s): Windows XP Professional SP2
Motherboards: Asus P5N32-SLI Deluxe
Gigabyte GA-G1 975X
Gigabyte GA-8I955X Royal

NVIDIA SLI Performance

The 975X chipset is able to support NVIDIA SLI technology with a specially configured and non-certified 78.01 driver along with proper bios support. However, NVIDIA has not sanctioned or licensed their SLI technology on the Intel platform.

NVIDIA SLI Performance

NVIDIA SLI Performance

NVIDIA SLI Performance

We have included ATI CrossFire results in these tests to indicate the ability of the X850 CrossFire Edition to operate on an Intel 975X platform. The X850 CrossFire solution is not competitive with the current NVIDIA 7800GTX SLI offerings. We did not witness any issues with the ATI CrossFire setup while testing the Intel 975X boards. We look forward to the X1800 CrossFire Edition cards as performance should be on par with the current Nvidia 7800GTX 256mb offerings.

Although the performance does not match the newer 81.xx series of drivers, the 975X boards are still competitive with the nForce4 Intel Edition SLI setup considering the beta condition of the non-certified drivers used. We noticed some graphic anomalies with the Asus P5WDG2-WS in the benchmarks that explains the lower scores compared to the Gigabyte board.

The ability of the 975X based boards to run both ATI CrossFire and NVIDIA SLI setups is definitely a marketing plus, but until Intel licenses and NVIDIA fully certifies and sanctions SLI on the Intel platform, we can only wonder what the impact would be in the market.

Overclocking Performance

The overclocking performance graphs have been added to the standard benchmark test suite and should allow for a better comparison on the overclocking capabilities of tested boards. For more details on the specific overclocking abilities of this board, please refer to the Overclocking and Memory Stress Test section in the Basic Features section.

Overclocking

Overclocking

The front side bus overclocking results were impressive for the Intel 975X boards and exceeded those of the Asus P5N32-SLI with the Smithfield based processor. We will see how well the nForce4 based P5N32-SLI does with the Presler and Cedar Mill processors in our next article.

Asus P5WDG2-WS: Presler Overclocking General Performance & Encoding
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  • Cygni - Wednesday, December 7, 2005 - link

    Workstation /= server...

    Overclocking isnt wacky in the worstation world at all. Picture a guy using 3dsmax everyday in his personal studio, or rendering TV streams in Maya, or doing texture work, or compiling source codes at a game studio...

    Overclocking in the Workstation market is probably ALOT more common than people would think. Take overclocking that Pressler. That big of an overclock could mean whole DAYS of extra time per year that the CPU would have otherwise been spending cranking away on rendering. Thats a serious gain.

    I dont think many serious servers will find a board like this one in em, to boot. Its lacking alot of features that a serious server hosting lots of users would deffinitly feel the need for... like built in SCSI, multi cpu support, RAM support over 8gig/4slot, etc.

    On the other hand, this is a near perfect workstation board. High clocked RAM support for both ECC and non ECC. Non buffered memory. Both SLI and Crossfire support at 8x/8x. Plenty of SATA II plugs for cheap storage.

    I took notice of the OC results and settings, and i like what i saw. :)
  • Cygni - Wednesday, December 7, 2005 - link

    That was a reply to the poster one level up, sorry. :D

    Thanks for taking the time to do the OC tests, however. Some people out there did like to see em.
  • Zebo - Tuesday, December 6, 2005 - link

    If those 4.8ghz air overclocks are normal intel won't have to wait for conroe to take back enthusiasts crown. That's amazing.
  • Leper Messiah - Tuesday, December 6, 2005 - link

    Hell yeah. 4.8GHz on air with Dual core is a 20% over what an 840EE will do. And I bet that with nF4 and a DFI 5.0+ is possible. oooh. Sexay.
  • stephenbrooks - Tuesday, December 6, 2005 - link

    Yeah, I'm wondering if the Pentium D 920 might become a new "favourite" chip for them to play with :)
  • Niv KA - Tuesday, December 6, 2005 - link

    Talking about Conroe, isn't the 975X supposed to support upgradability to it
  • xtremejack - Tuesday, December 6, 2005 - link

    If you look at the chipset price guides for this month by Anand, 975x will not support Conroe
  • Gary Key - Tuesday, December 6, 2005 - link

    Intel has not officially confirmed either way on the 975X to Conroe path. We have heard both a positive and negative on this but from different sources. As soon as we have a clear path it will be posted.
  • Niv KA - Tuesday, December 6, 2005 - link

    That would mean I could buy a 975X based MB with a Celeron and buy a Conroe in the summer without having to buy a new motherbord and all
  • Calin - Tuesday, December 6, 2005 - link

    When the graphs shows both min framerate and max framerate, I suggest that ordering should be done by the min framerate instead of the max framerate. Only on F.E.A.R. Performance test on the 9th page the results will change, and only for the top two boards - however, I prefer to have good consistent high framerate in the worst cases than extremely high framerate in the best conditions.
    Thanks

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