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will a pc reach 100% load

tank12up
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Gaming depends. Rendering video usually drives it pretty hard so it can hit 100%.

My personal rig - 4790k 4.8Ghz, Asus Z97 Pro (wi-fi ac), Corsair Dominator Plat 4x8GB, SLI GTX 1080 TI FE, Samsung 850 Evo 1TB, Crucial MX100 512GB, EVGA G3 1000W, and cooled by a hardline liquid cooling loop. 

 

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How much load is needed to reach the sweet-spot of a psu

90% 80% 95% ?

For 4770k and 780ti anything bronze or better 600w+ is enough.

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So if my pc takes 850w i should get a 1200w psu just in case

1. To draw 850 watt's you need a tri sli build or something similair. 2. To have the highest efficeny under full load you would get 1700. 3. NO that is riduclous. The diffrence is 3% between the lowest point in the curve and the highest. Just get a 850 Wat PSU if your sytsem will draw 850 Watt. 

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1. To draw 850 watt's you need a tri sli build or something similair. 2. To have the highest efficeny under full load you would get 1700. 3. NO that is riduclous. The diffrence is 3% between the lowest point in the curve and the highest. Just get a 850 Wat PSU if your sytsem will draw 850 Watt.

Ok

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depends on your cpu and overclock as well, if i remember correctly 3dmark recorded 220w from my i7 930 d0 alone while at 4.2Ghz during the cpu scenes in fire strike

 

edit; power draw

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boop

thats odd most of the effort should be on the gpu

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CPU: i5 4670k i won the silicon lottery Cooler: Corsair H100i w/ 2x Corsair SP120 quiet editions Mobo: ASUS Z97 SABERTOOTH MARK 1 Ram: Corsair Platnums 16gb (4x4gb) Storage: Samsun 840 evo 256gb and random hard drives GPU: EVGA acx 2.0 gtx 980 PSU: Corsair RM 850w Case: Fractal Arc Midi R2 windowed 

 

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In gaming your GPU load can go to 100%. Depending on the type of the game and your CPU, the CPU usage can vary a lot 20 - 80 %.

 

CPU hit's full load pretty much only when you are doing 3D rendering etc. It's more common that only one core hits full load (in single threaded scenarios), which would for example show only as 12% usage in task manager for me since I have 8 threads (though it might be closer to ~25% in reality depending on the case, since 1 of 4 cores is actually loaded)...

CPU: Intel i7 3970X @ 4.7 GHz  (custom loop)   RAM: Kingston 1866 MHz 32GB DDR3   GPU(s): 2x Gigabyte R9 290OC (custom loop)   Motherboard: Asus P9X79   

Case: Fractal Design R3    Cooling loop:  360 mm + 480 mm + 1080 mm,  tripple 5D Vario pump   Storage: 500 GB + 240 GB + 120 GB SSD,  Seagate 4 TB HDD

PSU: Corsair AX860i   Display(s): Asus PB278Q,  Asus VE247H   Input: QPad 5K,  Logitech G710+    Sound: uDAC3 + Philips Fidelio x2

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it will if ,3D Mark11 at Max + running Prime 95 with a costume setup with max FFT + editing a 3D project in 4K ,it will , but it won't reach 100% under a non artificial load , at least not the CPU, GPU and Ram at the same time

 Crust : Intel Core i5 4690K @ 4.4Ghz 1.45v  |  Motherboard : MSI Z97 MPower  |  Fruity Filling : MSI GTX 960 Armor 2Way-SLI |  Cooling : Noctua NH-D15  |  RAM : 16GB Corsair Vengeance 1600Mhz | Storage : 2xSamsung 840 EVO 500GB SSDs Raid-0  |  Power Supply : Seasonic X-Series 1250W 80+Gold  |  Monitor : Dell U2713HM 27" 60Hz 1440p  |                                                                                                                                           

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