Mid 2004 Gigabyte announced a new series of motherboards using the slogan Feel the Performance, Play to the Extreme. This series was titled PX which is an abbreviation for Performance Extreme and is designed to fuse the latest and greatest technologies into the one motherboard. Designed for the latest LGA775 Intel Pentium 4 processors, the PX series offers a vast range of new features intended to boost system performance and versatility. The series features a number of Gigabyte branded features, such as Memory Intelligent Booster 2, EasyTune 5, System Overclock Saver and many more.

These Performance Extreme motherboards sound very high-end and of course very expensive. However, despite supporting a wide range of the latest features, these motherboards are also intended to deliver a great degree of value to the LGA775 platform. The Gigabyte 8 Sigma series, comprising of the 8GPNXP Duo motherboard, were also designed to offer the very best performance along with a wide range of features. However, this motherboard was very aggressively priced for a number of reasons.

The Gigabyte 8I915P Duo Pro & 8I915G Pro motherboards are members of this new elite PX family and are available for as little as $140 US. Gigabyte has been able to drastically reduce the cost of these motherboards by doing away with non-essential items that would be found in the 8GPNXP Duo package. These PX series motherboards really are no-frill items, as Gigabyte have focused all their attention on the motherboard. Although the package does feature all the essential items, things such as the Gigabyte DPS module, rounded cables or LED fans have all been scratched.

Those that love the extra little nick knacks may prefer the more expensive 8GPNXP Duo package. However those that are simply after a killer motherboard and do not get that excited about the rest of the package, are going to love the PX series. The 8I915P Duo Pro is based on the Intel 915P chipset and offers the user the choice to use either DDR2 or DDR1. This motherboard also has an impressive list of features such as Dual Gigabit LAN, IDE RAID, SATA RAID, Firewire and so on. The 8I915G Pro motherboard is much the same, though it does not support DDR2 and is based on the Intel 915G chipset. This aside, both boards are almost identical in every regard.