PC Stats posted a review on the ASUS M3A78-T AMD 790GX Socket AM2+ Motherboard

The ASUS M3A78-T motherboard features AMD's latest Integrated Graphics Processor, the Radeon HD 3300. The interesting point about this IGP is that it has 128MB of additional DDR3 Sideport memory just for itself. In previous reviews of 790GX motherboards we've seen that this is one of the fastest integrated graphics processors on the market, mainly because it's more like an integrated videocard than standard IGPs which are not equipped with dedicated RAM. The AMD 790GX chipset is essentially a cherry-picked Radeon HD 3200 IGP, overclocked from 500MHz to a 700MHz core clock.

ASUS M3A78-T AMD 790GX Socket AM2+ Motherboard Review