Which of these 2 PSUs is better

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orangedu02

orangedu02

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Jun 12, 2017
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I'm looking for a PSU cause I want to upgrade an old system my current PSU won't do for the upgrades.
The computer is a Dell inspiron 3847 with these specs :

i5 4460 3.2 ghz with stock cooler
asus phoenix GTX 1050 2gb
8 gb ddr3 ram
1 TB WD blue 7200 rpm HDD
300w 80+ Bronze Dell PSU

My current PSU is doing fine for the current build but i want to get a new one and I found these 2 available for me where I live :

1- Corsair CX450m 80+ Bronze Certified

2- FSP Hydro x 550w 80+ Gold Certified

ofc the CX450m is cheaper but which one is better quality and more reliable Knowing I'm planning to add an SSD and another 8gb of ram , I have an i7 4790 laying around somewhere so I may slap that one in too .

 
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A


I thought the FSP was...
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Zerk2012

Zerk2012

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Oct 6, 2014
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Really their no reason to upgrade the PSU the i7 4790 uses 84 watts just like the CPU you already have and adding 8GB more memory and a SSD don't really even count.
If you just must upgrade I would get the lower priced CX450m their acceptable quality and more than enough power for what you have.
 
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aquielisunari

Judicious
Mar 31, 2011
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I thought the FSP was better. According to Tom's? http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

I would easily choose the FSP Gold certified for a couple reasons. It's gold certified(efficiency) and made of quality components. It also has a better future. Higher end cards like the 1070 on up require 500W or better PSU so opting for a 450W sets up some road blocks.

If I HAD to SAVE some money I would pick the Corsair 2017 CX550W.
 
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aquielisunari

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Mar 31, 2011
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As far as your RAM is concerned I would think twice about adding a module. We've had a fair number of people here trying to do exactly that and it doesn't work. Even when the modules are identical as far as specs. are concerned they aren't guaranteed to be compatible. Only when purchased in a dual-channel kit can one know they will be compatible with each other. The most recent member here that had an issue was over here. I am not certain if there was a timing or voltage issue. Just to be clear - Adding modules will work sometimes. Sometimes a $140 kit is cost prohibitive. Are you feeling lucky? It's just a better practice to always buy the kit instead of individually.
 
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Zerk2012

Zerk2012

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A GTX 1070 has a TDP of 150 watts and in no way requires a 500 watt PSU.
You can't just say what a video card requires what they recommend means absolutely nothing since they have no clue what the rest of the parts used in your PC are.
If he added a GTX 1070 his PC would use right at 300 Watts so the 450 watt PSU would still do .

 
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YoAndy

YoAndy

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Jan 27, 2017
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The GTX 1070 can use way more than 150W, specially overclocked versions. Even the regular GTX 1070 used 161 Watt on guru3D review.
http://www.guru3d.com/articles-pages/nvidia-geforce-gtx-1070-review,8.html

Here is Guru3D's power supply recommendation:

GeForce GTX 1070 / 1080 - On your average system the card requires you to have a 450~500 Watts power supply unit.
GeForce GTX 1070 / 1080 SLI - On your average system the cards require you to have a 750~850 Watts power supply unit.
If you are going to overclock your GPU or processor, then we do recommend you purchase something with some more stamina.

And, the PSU is the most important component in your whole computer because it regulates power to every component, and always remember that a PSU is more efficient at 50% load. So if you use 400 Watts on average (SLI), the most energy friendly power-supply would be an 800 Watt model. There are many good PSUs out there, please do have a look at our many PSU reviews as we have loads of recommended PSUs. What could happen if your PSU can't cope with the load is:

Bad 3D performance
Crashing games
Spontaneous reset or imminent shutdown of the PC
Freezing during gameplay
PSU overload can cause it to break down
Trying to save some money on a PSU is a bad idea.
 
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A

aquielisunari

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Mar 31, 2011
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Okay. I understand the manufacturer inflates the PSU wattage but I'm not going to argue with recommended PSUs. You know better. You understand the wattage and amps and what each component needs. I just answered the question using card recommendation such as
REQUIREMENTS
500 Watt or greater power supply.****
PCI Express, PCI Express 2.0 or PCI Express 3.0 compliant motherboard with one graphics slot.
One available 8-pin PCI-E power dongle
Windows 10 32/64bit, Windows 8 32/64bit, Windows 7 32/64bit. https://www.evga.com/products/Specs/GPU.aspx?pn=9991af29-f34c-478b-b746-f7e6e71f8b52.
 
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