A Samsung spokesperson said they couldn't comment on the GPU inside the Exynos 4412 quad core, except to say "the performance is appropriate for both smartphones and tablets."
Seems most likely it is Mali 4XX from ARM but if anybody knows different please chime in.
Reportedly the Exynos 4210, a dual-core Cortex-A9 with Mali400 quad-core GPU implemented in 45-nm CMOS.
Possibly the Exynos 4212, a dual-core Cortex-A9 with Mali400 quad-core, implemented in 32-nm HKMG CMOS.
(previously Exynos 4210)
@agk, I agree with you. Samsung products are very cost-effective compared to Apple products. So people who cant afford to buy Apple will opt for samsung products. Needs to be seen how HTC and LG will compete with Samsung products.