12V Rail Amp..

[Dave707]

Hi! I'm planning to replace my ageing sapphire Radeon 5450 of my HTPC with Asus Geforce GT 730 Silent video card as an upgrade. However, after reading the manual, it states that the PSU must have a 20A on its 12V rail as a requirement. My current PSU has only 18A on its 12V rail and I have some second thoughts whether to upgrade the PSU coz the difference is very slim. Does it result in some performance issues if ever I'll decide to install it without upgrading my PSU? Please help.. Any sound advice shall be appreciated.