THERMALTAKE W0171 1500W TOUGHPOWER CABLE MANAGEMENT Retail

hi i want to buy new psu and i want it for pc games for to connect 2 9800gx2

i am between THERMALTAKE W0171 1500W TOUGHPOWER CABLE MANAGEMENT Retail and ipro-Tech ST 1200E-AF 1200W

which has OutPut regulations :

+3.3V (Min.) +3.20V, (Normal) +3.30V, (Max.) +3.46V
+5V (Min.) +4.80V, (Normal) +5.00V, (Max.) +5.25V
+12V (Min.) +11.52V, (Normal) +12.00V, (Max.) +12.60V

Ripple & Noise (Max.) :

+3.3V 50mV
+5V 50mV
+12V 120mV
-12V 50mV
+5Vsb 50mV

Load Requirements :

+3.3V (Min.)0.5A , (Max.)40A
+5V (Min.)1.5A , (Max.)40A
+12V (Min.)1.5A , (Max.)90A
-12V (Min.)0.0A , (Max.)0.8A
+5Vsb (Min.)0.0A , (Max.)4A

* 1 X 24 Pin (60cm)
* 4 X 6+2 Pin PCIE (60cm)
* 1 X 4 Pin CPU (60cm)
* 1 X 8 Pin CPU (60cm)
* 6 X Sata (110cm)
* 6 X 4 Pin Molex (90cm)
* 2 X 4 Pin FDD (90cm)



and THERMALTAKE W0171 1500W TOUGHPOWER CABLE MANAGEMENT Retail

which has 1 x 20+4-pin Main Connector, 1 x 4+4-pin +12V Power Connector, 1 x 8-pin +12V Power Connector, 8 x 4-pin Peripheral Power Connector, 2 x 4-pin Floppy Drive Connector, 8 x 5-pin SATA Connector, 3 x 6-pin PCI Express Connector, 4 x 8-pin PCI Express Connector.

and
Over Current, Over Voltage, Under Voltage, Over Temperature, Over Power and Short-Circuit protection.


which of these 2 is the best ;;; i have coolmaster cosmos and i if buy one of them will it hold me for 4 years'';;;

can you help me please;;
which one should i buy;;
and why;;
;;please;;