Topic: [Guide] Dogie's Comprehensive Power Supply Analysis - page 5. (Read 23242 times)

Updated pricing.

Pretty decent price drop on the RM550.  

Listed in the OP as $113.07.  On sale at Newegg for $69.99 AR.  Amazon for $79.99 AR.

Not a super great deal, but very decent.

Also a price drop on the CX600.  $37 AR isn't the lowest price it's been, but it's close.  Listed in OP as $66.24.

$19.99 AR CX430 has more value per dollar at the moment, but all three are smaller supplies that may not fit the needs of many.

Exactly.  Free money for basically nothing.

You're missing out financially then, my friend.   I don't carry any balances (no interest charges incurred) and gets $1,000;s of credit card rewards each year.

Not to mention there are constant offers in my mailbox for cards with interest free periods on purchases.  Meaning I can make purchases, invest the cost of the purchases during the interest free period, get the cash or program rewards for those purchases, get the interest earned by investing the purchases' cost, and pay the bill in full at the end of the interest free period.

AA > CC. Free money for.... well... spending money. Get one if you can get the credit then use it whenever you possibly can.

p.s. I'll sort the pricing out this weekend, Friday night is currently booked up with other work.

I don't do "credit" cards nor do I have a bank account    I pay now.........& don't give a crap to get with the "credit/debt" mindset !!!!!!

My Paypal is all I have to purchase with or cash or BTC!!!!!     I don't even want to do bank wires 

I'm in "revolt" mode & will not get be using any banks for as long as I can help it    At least here in the US  

Yeah.  That's exactly my point.

Average Price != Spot Price

Average Price = Average Price


Same.

For those who don't purchase quite so much, or hell even if you do like myself and Unacceptable, get a ShopRunner account.

It's free if you have most types of American Express cards.  Free 2nd Day Air shipping and free returns.

Your doing a fantastic job Dogie!!!

Just an average price should be good,we still have to go to our favorite retailer to see if it's in stock or on sale anyhow   

My fav is Newegg,they ship faster & have free shipping more often & IF I have to return (within 30 days for any reason) I call em & have them look at my $50,000+ purchase history over the last 12 years & they email me a free return label,heck I even get items shipped BEFORE I return the defective item......sometimes 

I used to build high end gamer PC's & ship all over the US & Alaska even   Since PC gameing is in a dive,not so much anymore 

Amazon is ok,but that "return" feature I enjoy with Newegg is not there,in most cases for me at least 

Still would like to see the amount of PCIE cables per PSU,but I understand that that info is difficult to find,believe me,it took awhile for ME to find it 

It's about prices which are one of the fundamental factors in computing a "score" that a lot of users - especially those who don't know - will view as not only a scalar value but as an ACCURATE scalar value.

If the price of a model changes by a significant value, it doesn't affect your computed score?

I'm beginning to think you don't quite understand here.   

Guaranteed to be right at one point in time.

You're taking this all way, way, way too seriously.

Its not about calculating average prices lol, its about updating 6 different values and 2+ links in the table, per line, per update cycle. its not viable.

That's an assumption you've made.  That my post won't be updated.

So far, it is.  Let's keep the assumptions to a minimum.

At this point it's more updated than the OP is.  The CX430 is on sale for half what you have listed in the OP.

That's a 67% difference if I am doing the MATHS right.


By your own admission, Amazon pricing can be very volatile.

Case in point?  Of the 67 supplies listed in the OP as of this moment, 37 of the prices are incorrect.  Some are grossly incorrect.

What's more is it's tapping into a single source of data for pricing.  

So... guaranteed to be right?  Guaranteed?  No.  I'll disagree there.  Sorry.  You can't have it both ways.  You can't say spot pricing is guaranteed and then say Amazon is too volatile for you to keep up to date accurate pricing information.

Educated buyers - which I hope we all are or hope to become - shop for things before buying.  

They compare prices.

They want to know how things were priced recently.  Am I getting a good deal here?  Oh, the average is $40, and the low was $25.  So at $30 I'm in the "Good Buy" range.  At worst, your OP should link to CamelCamelCamel so that people could see that data for themselves, even if you won't provide it outright.

What's worse is you ARE BASING YOUR SCORE off this incorrect data.  And then people are making decisions from that.


You're working harder.  Not smarter.  And we're talking significant differences between the prices you're linking to and what the average street price AND sales price is.

I've already started throwing some of this data into spreadsheet that spits back forum bb code in one copy/paste.  It has the ability to capture multiple pricing points and create some metrics off that.

A db aggregating more data would be the next logical stop.

Laptop crashed while typing a reply on every point so going to tldr. Let me know if anything needs clarification.

The list isn't exhaustive, things will keep being added to it. The dell one will go on the list when I work out how I want to format two links being required. Also you can't get them from a reliable source, new, for $10.

I was referring to links that don't get updated, they become misinformed and misrepresentations. For example if links are posted outside of the OP, in 4 months they STILL read "x power supply for $y", even though that psu could be 5x more, 5x less, not sold at that site, at all or recalled due to being dangerous. The OP will be updated so doesn't suffer from that problem.

Spot pricing is required as that's what people buy at. Average pricing just guarantees that the price is going to be wrong at every point a purchase is made. It will be closeish, but it will be wrong. A spot price is guaranteed to be right, potentially for the whole period before another update is done. Again, people buy from spot prices not trend data.

Will update the link when home.

Still working on a way to confirm cube compatibility. Its a niche product, and all of these PSUs will work for the other 95% of ASIC hardware. I don't think it would be appropriate to kill a PSU off the list entirely due to overload protection. That should be an additional feature/criteria, not a requirement.

Do remember that each additional piece of variable data you add, increases the time taken to update the list. Ie we only have about 40 PSUs at the moment. If that ends up at 100, thats 2.5x as long.

Then if you add average and hi low pricing, as well as 2 store links, thats a further 5x information that requires updating. There becomes a point where its not viable to run with so much variable data because people will buy or not regardless of $5 variations of what we've listed the price at.

Hi Dogie, you might want to consider reviewing beQuiet PSU's.
They're pretty populair (at least in EU), availability is good, price/quality is good and they have a big assortment PSU's (80plus bronze/silver/gold/plat in a wide range of wattage)

Updated the table with meaningful High/Low/Average pricing data.

Added a Key and adjusted the formatting to increase readability.

If anyone has any additional suggestions on power supplies to be added to the list that they've tested and confirmed, please feel free to post them here or PM them.  I can add them to the table I created.  I have a very good pulse on pricing data and I'll be updating that far more regularly than the OP likely will with more meaningful pricing data than the OP captures at the moment.

From that post it should be easy for dogie to add any data there into his main table in whatever manner he sees fit if/when he can.

Didn't mean to skip over this post.  Yeah Newegg should definitely be included.

Not in reply to Unacceptable specifically (I'm guessing he/she knows about it), but for anyone else reading this, if you're not using a price comparison extension of some kind, find one and use it.  

I recommend Hover Hound to get you started.  It's available for both Firefox and Chrome and gives real-time pricing comparison and pricing history over time from a number of different retailers.

A search for a specific piece of hardware over at Slickdeals.net is also useful for gathering pricing over time.

Hey, thanks for the vote of confidence in a new member who is TRYING to help others.  We're you ever here on this forum doing that? I imagine you were.  How would it have felt if a member here said that to you?


Again why I stated your pricing model is just not a good one.  A single point pricing model gives no indication of what might be available.  It just give single data point at whatever time you happened to update it.  Single point of data = single point of failure.  Can't see any kind of trending from ONE data point.  I don't care what kind of MATHS you use.

A weighted average or a high/low/average pricing model would give a far better indication.

Best is a subjective term.  The MATHS (maths? really?  ) also show better deals are out there with equally performing or even better hardware.

A $10 server-grade 90+ efficiency Z750P with a $40 board from sidehack will likely be the "best" at the moment.  I think the MATHS ( ) would show it beats out all Corsair models, even at their best sale prices.

It's not even on the list.


Then your pricing is extremely inaccurate.  I know.  I buy $1,000s of hardware per month.


I don't want you to doubt my appreciation.   I don't need this information but others do.  I thank you for that.

I don't doubt you have personal issues that may restrict your ability to keep this information organized or updated.  I offered to help.  Not only did you decline it, you removed the information for no other reason that it would conflict with you receiving a referral sale.

So I suppose what I do question is the manner in which this is being done at the moment.

Maybe because, as I said in my other post just now, its been up THREE days and I've been in surgery for one. More sites will be added soon, give me time. Yes, links have affiliate IDs in. I used to disclaimer them all the time, but it turned out no one actually cared. It helps contribute to what is otherwise a free resource, like google. And no, it doesn't even cover a tiny portion of time time.

The original reason still stands, I'm going to come back every week and update the OP, I highly doubt you are going to come back in 6 months and change your then grossly misrepresented links when they are out of date.


Newegg is being added too, experimenting with whether to add both or the cheapest of that weak. Again, time. Be patient.

It was added to the OP where useful, I have your code saved. But as exactly I was saying, the 'amazing deal' link you posted was $40 more expensive within 12 hours.

1.001095833 if you really must know. And that's with a hell of a lot of scaling to get a range appropriate for humans to interpret.


Corsair make the best PSUs with the best attributes for mining, at reasonable prices. The unbiased MATHS backs that up in some cases, why is that unexpected? The CXM range is already the best seller by FAR.

US at this second.


Be patient, the guide went up three days ago and I've been in surgery for one one those, and not wanting to type much afterwards. Other sites will be added, but its very likely the 'cheapest' will change almost daily as they price match/stock price adjust all the time. Amazon links at least provide a 'here it is on the market, somewhere'. Its not easy to create dynamic code with static forum code, but it will get better.

Not really.  From a readability and maintenance stand-point it would make sense to use it too.

Not to mention that most shorteners give clickthrough statistics which could be useful to see which supplies were more popular or at least getting more traffic.

I don't even have an issue with even using referral links. 

But it was done with no disclosure in a very clandestine manner.  And then to ask another user to REMOVE information from the thread because of the following bogus reason -


instead of the real reason - can't get income if someone buys one of those!

dogie also stated


it was deleted within 12 hours.  none of that info was added to the OP.  I guess it stopped being "useful" already?