The i9300 has the Tegra 3 Quad Core processor which supposedly does not play well with LTE yet. Many reports have the Android variant of Linux not being very optimized for multi-core operations and so people don't see much performance improvement going from 2 to 4 cores unless they are gaming and the Tegra 3 has a pretty nice GPU built in. There is a pretty fair difference between 3G and 4G and the difference between 4G and 4G/LTE is suppose to be pretty amazing. 40-50Meg download vs 15-20Meg on plain 4G. There is another thread on this sub-forum where folks post their speed numbers.
Mike
thats what I thought the i9300 does not support LTE. the spec from GSMarena says it support LTE regionally, what does it mean ?
Samsung I9300 Galaxy S III - Full phone specifications
Biggest differences:
I9300
1GB ram
quad core exynos processor
comes in 16/32/64 GB configs
not LTE, HSPA+ only
i747 (ATT)
2GB ram
dual core snapdragon (uses this chip because the LTE is on the chip and does not require the use of another chip for LTE, ie bettery battery life)
only 16 GB config
ATT LTE, also I believe Telus and Rogers in Oh Canada
It appears the the Canada version of the i747 comes in more than just 16GB.