Question 1070 on cx450?

[randomthing]

I am wanting to upgrade from 1050 2gb to 1070, originally was going for 1060 6gb but 1070 seemed better for the games I wanted to play. I have seen many people say this is fine but also people say its not fine and I know the consequences if it isn't.

The psu calculator says recommended wattage of at least 447 so it could be fine but would like a definite answer before buying.

https://outervision.com/b/6rXWmK I know my cpu is much less of a match for a 1070 however the games I am wanting to play are heavily gpu reliant and don't use much cpu. Also its not the cost of a better psu that deters me but I didn't actually build my pc 2 years ago when I got it and am nervous about replacing all the little wires. The cx450 does have a 6 + 2 pin connector.

 

[MrN1ce9uy]

I think the 1070 is a good fit for your i5-7400. Some CPU intensive games might present a CPU limitation, but that's not a huge deal.

Now, for your PSU.. I pesonally think it is okay and you will not be using anywhere near 447W. If your PSU is under warranty then it is fine.

How much other stuff does your system have that isn't mentioned? If it's not an unrealisticly excessive amount of hard drives and other stuff, then there is no way you will ever go above the maximum wattage of your CX450.

GPU = 150W
CPU = 65W
Other = 50-100W

 

[randomthing]

only 1 1tb hdd but im not sure about sata, scsi or what other type of hdd it is.
I dont have anything else that isn't on that list. The company I bought the pc from will break their warranty with you if you open up the case which I have done, although I dont think it is the same warranty as the psu.

I have also now seen that nvidia say 500w for a 1070, does this make any difference?

 

[MrN1ce9uy]

I have also now seen that nvidia say 500w for a 1070, does this make any difference?

No, that doesn't make a difference. They are compensating for the vast amount of crap power supplies out there that don't actually output the amount of power they say. The Corsair CX450 actually has enough Amps on the +12V rail to support 448W, which is better than a lot of crap units that can't do near that even though they appear to say they can. Or like the old Corsair CX430, which was kinda crappy; it only had 28Amps on the +12V rail which allowed for 336W for the main components like CPU and GPU.

See, this is the old CX430

 

[randomthing]

I see, also would the cpu/gpu cooler fans have to be added separately to the psu calculator? And should I just get any make of 1070 as long as it has only 1 8 pin power connector.

 

[MrN1ce9uy]

I see, also would the cpu/gpu cooler fans have to be added separately to the psu calculator?

The fan power can vary on different models of GPUs and even CPUs. But it's not much to worry about unless you have a fancy liquid cooler with multiple fans and a pump. Yeah, any 1070 with 1x8-pin will work.

 

[randomthing]

This is probably a dumb question but do overclocked editions increase the wattage or are they the same?

 

[MrN1ce9uy]

This is probably a dumb question but do overclocked editions increase the wattage or are they the same?

GPUs? They can increase the wattage, but it's not by much. Maybe 5-10W.

 

[Baralis]

I know its not an apple to apple comparison but might give a ball park idea, my system;

4770K @ 4Ghz
12 G ram (4 dimms)
1 platter HD
1 SSD
5 fans including CPU cooler
GTX 1060

Reads 260 +/- 10 Watts when under heavy gaming load.