so very wrong, its not even funny.
5750 has a TDP of 90W
460GTX has a TDP of around 150W (768 a little less, 1gb a little more). and if u pick up one of the OCed cards than its will be more than 150 for sure.
So you are looking at TDP instead of the minimum power supply requirement listed on the manufacuturers website... like I did? I'm glad you are here to clear things up.
"450 Watt or greater power supply with one 75W 6-pin PCI Express® power connectors recommended (600 Watt and two 6-pin connectors for ATI CrossFireX™ technology in dual mode)"http://www.amd.com/us/products/desktop/graphics/ati-radeon-hd-5000/hd-5750/Pages/ati-radeon-hd-5750-overview.aspx#3
"Minimum Recommended System Power (W) 450 W"http://www.nvidia.com/object/product-geforce-gtx-460-us.html
vilenjan, if you can't give helpful, knowledgable feedback, without throwing out insults, don't waste our time.