PSU headroom for overclocking

[ivanteng880]

Hi I'm looking for a good PSU  for my build and I came across the Seasonic Focus Plus Gold and I personally loved everything about it so I'm now trying to figure out what voltage to get, on my PCpartpicker PSU calculator it said that the max my pc could use is 459W and I'm thinking about overclocking both my EVGA GTX 1070 Ti FTW ultra silent, and my Ryzen 5 2600X, so how much headroom should I get, I'm thinking about the 650W or the 750W. Any suggestions? I want that PSU to last for at least 4 years and I'm pretty sure I'm going to give it plenty of upgrade throughout that 4 years. Thank you guys so much.

[ivanteng880]

Just now, ivanteng880 said:

Hi I'm looking for a good PSU  for my build and I came across the Seasonic Focus Plus Gold and I personally loved everything about it so I'm now trying to figure out what voltage to get, on my PCpartpicker PSU calculator it said that the max my pc could use is 459W and I'm thinking about overclocking both my EVGA GTX 1070 Ti FTW ultra silent, and my Ryzen 5 2600X, so how much headroom should I get, I'm thinking about the 650W or the 750W. Any suggestions? I want that PSU to last for at least 4 years and I'm pretty sure I'm going to give it plenty of upgrade throughout that 4 years. Thank you guys so much.

Link to my pcpartpicker https://pcpartpicker.com/list/QKYNzY

[Crunchy Dragon]

You'll be fine on just 650W. It's really up to personal preference, either one will work just fine.

[STRMfrmXMN]

5 minutes ago, ivanteng880 said:

Link to my pcpartpicker https://pcpartpicker.com/list/QKYNzY

450W would be enough for overclocking that system. You really don't need a 750W unit.

 

A 550W version of the PSU in your PCPP list would be perfect.

[seon123]

PCPP estimates always overestimate (though not as much as those "PSU calculators"). With a 1080 Ti, you're adding about 50W when you're overclocking it. Anandtech's overclocked X299 test bench with a 1070 Ti and a Platinum rated PSU, drew 320W from the wall. Subtracting ~10%, that's a bit under 300W. Adding ~80W for the GPU and CPU overclock, and you have headroom with a 400W PSU. 

If you want a fully modular PSU, you have the 450W Whisper M for $60. Then the Focus Plus Gold 550W for $10 more. 

 

As for the build, I have a few things I'd like to see changed. 

Low end 120mm AiOs don't really make sense, especially in a mid tower. They perform worse, are louder and are less reliabel, compared to an equivalent air cooler. You have things like the H5, Dark Rock 3 and Tisis. 

An NVMe SSD won't help with things like Windows boot time, game launch times or general snappiness. Unless you actually read and write big sequential files, a good, larger capacity SATA SSD will make more sense. There's the SU800, MX500, MX300, 860 Evo and SL308. The 500GB versions of those don't cost that much more than the MP500.