• May get a GTX 470. PSU sufficient?
    10 replies, posted
So, basically, I was being a retard when I bought this PSU last year, and didn't check the complete specs of it. Anyway, it's a Cooler Master Silent Pro M 600W. (Apparently, it only delivers 480 W on the 12 V line) Anyway, specs: [b]CPU:[/b] Intel Core i5 750 2,66 GHz [b]mobo:[/b] Gigabyte P55 UD3 [b]RAM:[/b] 4gb (2x2 sticks) DDR3 1066Mhz of the brand Crucial. [b]GPU:[/b] Zotac Nvidia GeForce GTX 470 [b]HDD:[/b] Western Digital 320 GB (All I need, really) Plus two 120mm case fans. So, will it be enough?
Yea it's fine! Should easily power it They recommend 550-600 watts.
366W maximum load in Crysis, 408W maximum load in Furmark. You will barely make it with the 470 under load in games as your PSU at 82% efficiency (that is the highest efficiency your PSU will exhibit under 80 Plus Bronze spec) only outputs about 393W.
[QUOTE=Odellus;25383571]366W maximum load in Crysis, 408W maximum load in Furmark. You will barely make it with the 470 under load in games as your PSU at 82% efficiency (that is the highest efficiency your PSU will exhibit under 80 Plus Bronze spec) only outputs about 393W.[/QUOTE] Well, fuck. Would it be able to handle a 5870? Just checked, time to get a new PSU.
I like how back when the 5 series was released, it said that all the 5 series cards used less power under load than they do now.
It's fine with GTX 470/5870. I've seen people run 5870s on 550 watts >_>
Wait, what? According to this picture, the 5870 drains 161 watt under stress: [img]http://www.xbitlabs.com/images/video/radeon-hd5870/diagrams/hd5870_power.png[/img] But according to this image, it drains 350 watt under stress: [img]http://images.hardwarecanucks.com/image//skymtl/GPU/HD5870/HD5870-1000.jpg[/img]
I went by Anandtech's first review of the 5 series in which the 5870 used 401W under load, and now it says that under the same Furmark conditions, it only uses 375W.
[QUOTE=anikilol;25384445]It's fine with GTX 470/5870. I've seen people run 5870s on 550 watts >_>[/QUOTE] Just because it says a wattage on the box, doesn't necessarily mean that's what it actually outputs under full load.
[QUOTE=anikilol;25384445]It's fine with GTX 470/5870. I've seen people run 5870s on 550 watts >_>[/QUOTE] that's not what matters at all, I thought I've made this clear enough
[QUOTE=Odellus;25383571]366W maximum load in Crysis, 408W maximum load in Furmark. You will barely make it with the 470 under load in games as your PSU at 82% efficiency (that is the highest efficiency your PSU will exhibit under 80 Plus Bronze spec) only outputs about 393W.[/QUOTE] Efficiency isn't about output capacity, lower efficienty just means it pulls more power from mains than what the wattage of PSU is. Efficiency = Pout / Pin
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