The most accurate "PSU Calculator"
- Thread starter Nugroho
- Start date
Solution
Gam3r01
Titan
- Jan 12, 2013
- 25,417
- 976
- 115,440
Neither, PSU calculators are generally incorrect one way or the other in nearly every case.
The best way is to look at power consumption on benchmarks, or just ask here.
A list of specs and a budget is generally all most of us need to give an accurate measure.
The best way is to look at power consumption on benchmarks, or just ask here.
A list of specs and a budget is generally all most of us need to give an accurate measure.
Bearmann
Splendid
- Sep 14, 2015
- 2,880
- 110
- 23,490
This list is pretty good and allows for some overclocking: http://www.realhardtechx.com/index_archivos/Page362.htm
nukemaster
Titan
- Nov 23, 2004
- 19,626
- 6
- 74,965
Too much difference between systems to say for sure.
I mean realhardtechx seems pretty ok(safe without getting stupid overkill), but my 650ti has had not issues with a 300 watt power supply neither did the 5770 before it. I think the numbers have also changed a bit over time.
With a lighter system(lower TDP cpu and board without all the extra features), you can get by with less for sure.
I see a GTX 670 recommends 500. I do not think I have every seen much over 350 if I trust the UPS i have, but it has been a while since I tested.
Having some extra power never hurts, it should be more easy on the power supply and allow upgrade room.
I mean realhardtechx seems pretty ok(safe without getting stupid overkill), but my 650ti has had not issues with a 300 watt power supply neither did the 5770 before it. I think the numbers have also changed a bit over time.
With a lighter system(lower TDP cpu and board without all the extra features), you can get by with less for sure.
I see a GTX 670 recommends 500. I do not think I have every seen much over 350 if I trust the UPS i have, but it has been a while since I tested.
Having some extra power never hurts, it should be more easy on the power supply and allow upgrade room.
- Apr 29, 2006
- 29,241
- 437
- 93,590
Systems without a GPU will use less then 200W. Most systems with a small GPU (meaning a single 6pin plug) will use less then 250W. Gaming systems with a larger GPU will run over 300W. Highest end systems with a single GPU will top 450W. Dual card setups will add an extra 75-400W per card.
The problem is with the PSUs. They aren't all made the same. I run my system off of a 450W PSU. I know 500W or 550W PSUs I won't let near my system. To make up for this the calculators will inflate the real number that's needed, sometimes nearly double. Some of these are also ran by the people who make PSUs and know it's better for them if they sell you a 500W instead of the 350W which would work. I agree with the above. Either ask here, or use what I wrote earlier in this post. But you need to buy a "real" or QUALITY PSU. Not just any old (cheap) PSU.
The problem is with the PSUs. They aren't all made the same. I run my system off of a 450W PSU. I know 500W or 550W PSUs I won't let near my system. To make up for this the calculators will inflate the real number that's needed, sometimes nearly double. Some of these are also ran by the people who make PSUs and know it's better for them if they sell you a 500W instead of the 350W which would work. I agree with the above. Either ask here, or use what I wrote earlier in this post. But you need to buy a "real" or QUALITY PSU. Not just any old (cheap) PSU.
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