If not, Samsung has officially revealed its work on the dual-core Exynos 4212, a dual-core ARM9 chipset that's claimed to be 30% more efficient and substantially faster than the unit inside the Galaxy S2. Even that lesser option would still make the S3 a great phone.
The leaked specifications of the Samsung Galaxy S3 are -
1.5GB of RAM
32GB Internal storage memory
SD Card slot to expand memory
4.65″ “Super AMOLED III” display
10-megapixel camera
1080p video recording at 60fps
2250mAh battery
NFC Chip
Ice Cream Sandwich OS with Touchwiz 5.0