Getting a "new" Psu, TX650 vs HX620?

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JackNaylorPE

JackNaylorPE

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Both are rather "older" models ... TX came about in 2007 ... the HX 620 goes all the way back to 2006 and IIRC, was Corsair's very 1st PSU. Both have long been discontinued


The HX620 was built by Seasonic on their G Platform
The TX 650 was built by CWT, the V2 version by Seasonic


The HX series is better than the TX series .... but given the age of these designs and the fact that they have been discontinued for so long would give me pause
 
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yahfz

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Yes it is, the TX650 v1 was made by CWT, and the v2 was made by seasonic. I thought the HX version had better efficiency..
One thing i would like to say is that the HX620 is modular.
 
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JackNaylorPE

JackNaylorPE

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The TXv2 is much newer from around 2011 so it has that going for it.

750V2 model - 9.5 Performance / 8.5 Build Quality
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=230

850V2 model - 9.5 Performance / 9.5 Build Quality
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=218

I would expect the BQ rating of the 650 would be closer to the 750 than the 850

The HX620 got a 9.5 performance rating and back in the day there was no BQ rating
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story2&reid=21

So while I'd generally lean to the HX over the V2, the 5 year difference in age makes a solid argument for the v2. Capacitor aging is a factor in any quality and while the good ones last longer than the bad .... the loss in power output over time is very real.

As for the modular, that is also a concern.... I favoir hybrid modular over full modular but the 650 model isnt even a hybrid do that argues for the HX if you are not using all the cables.
 
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yahfz

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Yeah, i will just get the 650TX v2 then... Thank you so much for the help. Is there any other choice you would recommend nowdays? heres my specs:

i7 3770k 4.5ghz 1.25v
2x4gb ram 2400mhz
Z77X-D3H
GTX 670 Power edition i will probably get the new GTX 1070 or a 980.
SSD 120gb Kingston v300
1TB HD 7200RPM.
 
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JackNaylorPE

JackNaylorPE

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Assuming this is a gaming box, the most cost effective upgrade you could make would be SLI (320 watt SLI load). That would warrant a 750 watter ... A new EVGA 750 B2 costs just $49 "brand spankin new" here in the states and is an excellent PSU and you'd get a 5 year warranty

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story6&reid=393
http://pcpartpicker.com/part/evga-power-supply-110b20750vr

The GPU can be had for $63 and result in about a 70% additional fps on average
http://www.ebay.com/itm/MSI-NVIDIA-GeForce-GTX-670-N670-PE-2GD5-OC-2-GB-GDDR5-SDRAM-PCI-Express-3-0-USED-/131785807735?hash=item1eaf0bd777:g:iQIAAOSwKfVXFYVZ



 
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JackNaylorPE

JackNaylorPE

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While some games (i.e. Witcher 3) will certainly make that true, lab tests confirm most games show no dicernable performance difference between 2 GB and 4 GB at 1080p.

http://www.guru3d.com/articles_pages/gigabyte_geforce_gtx_960_g1_gaming_4gb_review,12.html
https://www.pugetsystems.com/labs/articles/Video-Card-Performance-2GB-vs-4GB-Memory-154/
https://www.youtube.com/watch?v=o_fBCvFXi0g

The 980 is a "lost child" squeezed between the 970 and 980 Ti, it's simply fallen into the shadows while the 970 and 980 Ti continue to sell well. I don't expect more than a paper launch from nVidia this quarter. With reported delays in HBM2 fabrication, it may be that we won't see non-reference xx70s available in quantity until September at best.

The SLI capable PSU option was suggested as a long term measure for several reasons:

1. It's cheap ... $48 can't be much more than those used Corsair units
2. It's new, no old caps issues to concern yourself with
3. It's warranted
4. It will power two 1070s
5. You can carry it on to the new system ... something I wouldn't do with the 5 - 10 year old Corsair units

As for the 2nd card option .... this is an oiption, if you didnt go this way, IUd stiull get the 750 for the 5 reasons stated above. However:

1. Given the anticipated wait for next generation cards, $65 gets you a 70% speed improvement now... not next fall.
2. That 1070 is gonna cost 6 times more than the 2nd 670 .... Since we're looking at used units because of budget restrictions, budget is obviously a concern. While the kitty is filled with funds to buy that new card, the SLI option provides a huge cost / benefit ratio until you have the cash available for that new ($350 + ?) card.

So again , the 750 is not for the two 670s as much as it is for the 2nd 1070 you will have the option to buy 3 years from now.... But at $65, doing SLI with a 2nd 670 is a pretty cost effective interim measure. When ya get the 1070, can also keep one of the 670s as a PhysX card
 
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