Who needs DDR3 to hit insane memory clock speeds? Through a batch of BIOS updates, Gigabyte claims to have added native support for 1333MHz DDR2 RAM to its motherboards based on Intel P45 Express chipsets. The updates cover a total of ten mobos:
GA-EP45-DQ6 GA-EP45-Extreme GA-EP45-DS5 GA-EP45-DS3R GA-EP45-DS4P GA-EP45-DS3 GA-EP45-DS4 GA-EP45-DS3LR GA-EP45-DS3P GA-EP45-DS3L
On top of that, Gigabyte says four of its P43 motherboards—the GA-EP43-DS3L, GA-EP43-DS3R, GA-EP43-S3L, and GA-EP43-DS3—now support DDR2 memory speeds up to 1200MHz. You'll find the necessary BIOS updates for both the P43 and the P45 offerings through this page. (Look for "GA-x4xxx" in the "Series" product search menu.)
As far as we know, though, neither DDR2-1333 nor DDR2-1200 are official JEDEC standards. That means users will need to either scour online stores for enthusiast memory "certified" to run at those speeds, or just try their luck overclocking slower RAM themselves. For the record, Corsair rates its fastest DDR2 RAM for a top speed of 1066MHz, while OCZ's fastest DDR2 tops out at 1200MHz.