7970 OC + 2600k OC - Power consumption + Temperatures

Today I bought a Power Meter so I could test my computer power consumption.
Cpu 2600k @4.5Ghz

Idle: 7970 stock 350/1375 = 155W peak
Idle: 7970 OC 400/1600 = 190W peak

Playing BF3 eyefinity 5760x1080 OC 1200/1600 = 430W peak

CPU TEST: Prime 95 Torture test = 270W peak
CPU + GPU TEST: Furmark Burn In test + Prime95 Torture test at same time = 535W peak


Temperatures:
CPU = 42C peak
CPU core = 52C peak
MB = 26C peak
7970 = 84C peak

I did this test to find out if a 750W power supply would handle 2x7950 or 2x7970

Pc specs:
Intel I7 2600K @4.5Ghz/1.28v
Asus Maximus IV GENE-Z/GEN3
Sapphire HD 7970 3GB GDDR5 @1200/1600 running eyefinity 3 monitors 5760x1080
Corsair 16GB (4x4GB) DDR3 1600Mhz Vengeance LP Memory Kit CL9 1.5V
Corsair 120GB Force 3 SSD 2.5" SATA-III
Western Digital 1TB SATA-III Caviar Blue - 7200RPM 32MB Cache
Western Digital 500GB SATA-II Caviar Blue - 7200RPM 16MB Cache
Corsair Air Series A70 - Dual Fan
OCZ ZS Series 750W 80+ Bronze PSU
Pioneer BDR-206DBK 12x BD-RE
Corsair Carbide 500R Black Case (with 5x 120mm fans + 1x 200mm fan)

I don't know if im lucky, but i run my 7970 at 1000mhz core 1.043V. under full load it uses 170 more watts then at idle. Gaming with my AMD 960T (stock clocks but unlocked to six cores) it draws 230-260 watts for the entire system. also shaves about 25-30C off my fully loaded GPU temps

buttons said:

I don't know if im lucky, but i run my 7970 at 1000mhz core 1.043V. under full load it uses 170 more watts then at idle. Gaming with my AMD 960T (stock clocks but unlocked to six cores) it draws 230-260 watts for the entire system. also shaves about 25-30C off my fully loaded GPU temps

Click to expand...

something is wrong... how can it draws 260W for the entire system if only the graphic card is 170 + at least 10 idle?... you have 80 left for cpu, mb, memory, hard disk and etc.. your cpu itself is 95W.. 4 cores... with 6 cores should be around 125W in full load.. lets say 80W gaming... so you have nothing left for the rest

Also I notice 7970
1000/1375 = 5W more than stock
1000/1500 = 20W more than stock
1100/1500 = 30W more than stock
1200/1600 = 50W more than stock

thanks for the info drangueos.

I wouldnt try to run your oc'd system with crossfire on a 750w psu. you could technically peak at 800watts, and you never wanna run constant at >75-80% capacity anyway, which means 950-1000w PSU is needed in the case of extreme overclocking + crossfire

Yeah power is important! Dont try to get by with a cheap under powered P/S.