PQI Memory stated that its memory modules were able to operate stable at 1000MHz and higher clock-speeds on Gigabyte’s latest mainboard. The company said memory modules running at 1000MHz would be commercially available shortly.

“The PQI TurboMemory DDR2-1000 uses original DDR2 – 667 DRAM IC and tested with the latest Gigabyte motherboard, the GA-8I955NXP in dual channel to achieve speeds of over 1000MHz. DDR2 – 1066 speeds was achieved when working in single channel pushing DDR2 memory module speeds to the next level,” PQI said in a statement.

PQI28000 memory modules are certified to operate at 1GHz clock-speed with CL5 5-5-15 latency settings with 1.9V memory voltage. The manufacturer showcased 512MB DDR2-1000 memory modules, but it is unclear whether the firm will also produce 1GB sticks rated to run at 1000MHz.

Earlier this week OCZ and ASUS announced that they could achieve 1000MHz clock-speed using OCZ’s memory modules and ASUSTeK’s mainboards. OCZ also promised to bring such high-speed memory products to the market. Still, 1GHz memory overclocking milestone is not something truly new: Some enthusiasts have already managed to overclock Corsair’s DDR2 PC2-5400UL (667MHz) DDR2 SDRAM to 1174MHz using Intel’s D955XBK mainboard.

It is uncertain when memory modules officially certified to function at 1GHz reach the market and what the actual price on such components would be. Still, even if it is much higher than that of typical DDR2 memory, it is not addressed to the general public, but overclockers, as even the world’s latest core-logic sets do not formally support memory speeds beyond 667MHz.