1kva

Hi, I currently have an Intex Black Armour 725 UPS which I had purchased before building my current system - i5 4670k + Asrock Z87 Extreme4 + Asus R9 280X (full details in sig). This Intex UPS is rated at 725VA, but it is Intex, so... It gets overloaded when I am playing some heavy games...

CPU AMD Phenom II 960t 6957 Motherboard ASUS M5A88-M 5486 GPU MSI AMD/ATI R6850 Cyclone 1 GB 9761 RAM G.Skill 4GB DDR3(F3-12800CL9S-4GBXL) 1150 HDD WD Caviar Blue 500 GB 4300 Optical Drive Asus DRW-24B3ST 1110 Case Cooler Master Elite 310 red Mid Tower Cabinet 1828 PSU Seasonic...

I would like to know the difference between the two. Can anybody help with this. I bought Powersafe UPS 1000Eco 1kva. After complete discharge. I again connected the UPS to power 15hr while I was using PC simultaneouly. After 15hr current went it given me the backup for 7min...