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Looking ahead to Intel's 925XE chipset and FSB1066

Test System

Intel Processors (Socket 775)
560Pentium 4 3.60 GHz (3200 MHz 12-16/1024 kB)Unlocked engineering sample
Memory
Crucial/MicronBallistix DDR2-667 (PC5300)2x 512 MBOfficial Timings : CL4-4-4-10Voltage : 2.0 V
CorsairTwin2X CM2X512-5400C4PRO XMS5402 v1.12x 512 MBOfficial Timings : CL 4-4-4-12Voltage : 1.9 V
SamsungPC2-5300U2x 512 MBOfficial Timings : CL5-5-5-10Voltage : 1.8 V
Motherboard
Intel Platform(socket 775)Asus P5GD2Intel 915P ChipsetBIOS : 1004 Beta
Common Hardware
Graphics CardATI Radeon X600 Reference Card, 128 MBPCI Express x16
Hard DriveWestern Digital WD800JB, 80 GB7.200 rpm, 80 GB per platter, 8 MB Cache
Software
Intel Chipset Install UtilityV 6.0.1.1002IAA 4.1.0.6325
ATI GraphicsVersion 8.02
DirectX9.0b
OSWindows XP Professional, SP2

Up to now, the motherboard manufacturers weren’t able to provide a 4:5 clock ratio between FSB and DDR2 memory. Because the 925X is practically unchanged and offered as the 925XE, it could only be a matter of changing a few things to make it run at FSB1066. This option was not available to us however, so we also had to restrict ourselves to 3:4 in order to operate the system memory with 355.5 MHz or DDR2 711

On the one hand, this drives the benchmark results somewhat over the top, since some of the benchmarks react sensitively to larger memory bandwidths. On the other hand, the Prescott will not be available in an FSB1066 version with a 3.73 GHz clock - here, Intel gives priority to the Pentium 4 720 with a 2 MB L2 cache, which would run faster than our Pentium 4 560 anyway. The results should, in any case, suffice to give you a peek at future performance.