add arrow-down arrow-left arrow-right arrow-up authorcheckmark clipboard combo comment delete discord dots drag-handle dropdown-arrow errorfacebook history inbox instagram issuelink lock markup-bbcode markup-html markup-pcpp markup-cyclingbuilder markup-plain-text markup-reddit menu pin radio-button save search settings share star-empty star-full star-half switch successtag twitch twitter user warningwattage weight youtube

psu for gtx1080ti

favourxyz
  • 29 months ago

is corsair cx650w (2015edt.) enough? or should i really buy a new 1?

Comments

  • 29 months ago
  • 1 point

PCPartPicker part list / Price breakdown by merchant

Type Item Price
Power Supply Corsair - CXM 650W 80+ Bronze Certified Semi-Modular ATX Power Supply $69.99 @ Amazon
Prices include shipping, taxes, rebates, and discounts
Total $69.99
Generated by PCPartPicker 2017-10-14 14:26 EDT-0400

Can you confirm that this is your PSU ? if it is your fine.

  • 29 months ago
  • 1 point

Power supply calculators nearly always over estimate.

Even more of a reason the EVGA one would over estimate is because they get more profit from a larger PSU bought.

The best way is just to find a professional review of the gpu in play, with a similar CPU (main power consumers. Rest of build won't vary much). Look at the wall draw and multiply by the PSU efficiency.

For example, this review/benchmarks look at the GTX 1080ti with a 7700k. At a gaming load, it draws 391w from the wall. Since we do not know the PSU in this case, I'll just assume it's efficient to .90. 391 x .90 = 352.

Even a quality 450w PSU could get the job done.

OP, that cx650m (2015) PSU is absolutely capable.

[comment deleted]

Sort

add arrow-down arrow-left arrow-right arrow-up authorcheckmark clipboard combo comment delete discord dots drag-handle dropdown-arrow errorfacebook history inbox instagram issuelink lock markup-bbcode markup-html markup-pcpp markup-cyclingbuilder markup-plain-text markup-reddit menu pin radio-button save search settings share star-empty star-full star-half switch successtag twitch twitter user warningwattage weight youtube