GA_EX58 UD4P Gsata

[Munch]

Hello, I recently installed an SSD(Samsung 840 pro 256gb) in my system and used the GSATA controller in AHCI mode. After I did this I was reading on Tweaktown that This controller may be slower then the other controller on my board. Is this true, and if so can I switch without having to completely reinstall windows? Is the GSATA slow enough that if I switched I would notice a difference?

Thanks, Munch

PS. My sig is out of date, I will change it