EVGA G2 vs G3

[MarkH123456]

I am going to be buying a new power supply. I notice the EVGA super nova g2 is on sale on amazon for 79 dollars, while the g3 is 106 dollars. What is the difference between the g3 and g2?

[chris76816]

The g3 is newer but they are both fantastic power supplies. Definitely go for the g2

[MarkH123456]

Just now, chris76816 said:

The g3 is newer but they are both fantastic power supplies. Definitely go for the g2

Alright thanks, but what is the 10 dollar difference at MSRP? I already know the g3 is smaller, but what are the other differences?

[shadowbyte]

8 minutes ago, MarkH123456 said:

Alright thanks, but what is the 10 dollar difference at MSRP? I already know the g3 is smaller, but what are the other differences?

most likely refined design, ie less noise and heat output. Maybe even slightly more efficient.

[RadiatingLight]

9 minutes ago, MarkH123456 said:

Alright thanks, but what is the 10 dollar difference at MSRP? I already know the g3 is smaller, but what are the other differences?

Slightly better power regulation, Smaller size, Looks better, Same efficiency level, but the G3 is extremely close to platinum efficiency, while the G2 is firmly in gold. Basically a small revision over the already very good G2

 

[MarkH123456]

1 minute ago, RadiatingLight said:

Slightly better power regulation, Smaller size, Looks better, Same efficiency level, but the G3 is extremely close to platinum efficiency, while the G2 is firmly in gold. Basically a small revision over the already very good G2

 

Ok, thank you. Do you mean voltage ripple and what exactly is 80+ efficiency? What difference does it make if my psu has 80+ bronze compared to 80+ titanium?

[Mooshi]

6 minutes ago, MarkH123456 said:

Ok, thank you. Do you mean voltage ripple and what exactly is 80+ efficiency? What difference does it make if my psu has 80+ bronze compared to 80+ titanium?

Just means you burn less power which equates to cheaper electricity bill. That said, you also need to factor cost difference because it could be years before you see return on investment based off the money you saved in power vs the price differences between a $60 bronze unit and a $150 titanium unit for example.

[MarkH123456]

Just now, Mooshi said:

Just means you burn less power which equates to cheaper electricity bill. That said, you also need to factor cost difference because it could be years before you see return on investment based off the money you saved in power vs the price differences between a $60 bronze unit and a $150 titanium unit for example.

So what would be different if I had a 80+ bronze 500 watt vs a 80+ titanium 500 watt? What would be a difference?

[themctipers]

7 minutes ago, MarkH123456 said:

Ok, thank you. Do you mean voltage ripple and what exactly is 80+ efficiency? What difference does it make if my psu has 80+ bronze compared to 80+ titanium?

80+ bronze means the efficiency (AC to DC) is worse (I think it's around 80-85% under 25, 50, 75, and 100% loads)

 

usually cheaper psus that have worse voltage regulation/whatever would be 80+ bronze, but there are a few that are pretty good but 80+ bronze. 

 

80+ titanium is around the 97% or so efficiency (AC ago DC) with the same % loads, usually titanium psus are higher end and have better components inside

 

[Mooshi]

Just now, MarkH123456 said:

So what would be different if I had a 80+ bronze 500 watt vs a 80+ titanium 500 watt? What would be a difference?

Basic answer? A lighter wallet. If you can afford a higher efficient psu, go for it. You save in the long run on power, but that could take awhile. 

 

Sales are your best friend and I say Gold and Platinum units are the best value for efficiency and what you pay.

[Spuriae]

10 minutes ago, shadowbyte said:

most likely refined design, ie less noise and heat output. Maybe even slightly more efficient.

G3 is louder; it is more efficient but the reduced footprint makes heat dissipation more difficult. Transients and regulation improved over the G2; ripple still roughly the same.

[MarkH123456]

1 minute ago, themctipers said:

80+ bronze means the efficiency (AC to DC) is worse (I think it's around 80-85% under 25, 50, 75, and 100% loads)

 

usually cheaper psus that have worse voltage regulation/whatever would be 80+ bronze, but there are a few that are pretty good but 80+ bronze. 

 

80+ titanium is around the 97% or so efficiency (AC ago DC) with the same % loads, usually titanium psus are higher end and have better components inside

 

Ok, when you say 97% or 80%, does that mean it waste less power in the ac to dc conversion process when comparing 80+ bronze to 80+ titanium?

[RadiatingLight]

1 minute ago, MarkH123456 said:

Ok, when you say 97% or 80%, does that mean it waste less power in the ac to dc conversion process when comparing 80+ bronze to 80+ titanium?

yes.

so a 500W 80% efficient PSU will draw 600W from the wall, and loose 20% in the conversion when at full load

a 500W 95% efficient PSU will draw 525W from the wall, and loose 5% in the conversion when at full load.

[themctipers]

Just now, MarkH123456 said:

Ok, when you say 97% or 80%, does that mean it waste less power in the ac to dc conversion process when comparing 80+ bronze to 80+ titanium?

Yes

 

80% efficiency = you need 20% more AC for one unit of DC

 

so, to get 100w DC, you need 120w AC (20w inefficiency) if you have 80%

 

to get 100w DC you would need 103w AC (IIRC titanium units wouldn't be 97% efficiency when it's not ~25, 50, 75 or 100% total usage)

[MarkH123456]

1 minute ago, RadiatingLight said:

yes.

so a 500W 80% efficient PSU will draw 600W from the wall, and loose 20% in the conversion when at full load

a 500W 95% efficient PSU will draw 525W from the wall, and loose 5% in the conversion when at full load.

Ok, thank you very much!

[STRMfrmXMN]

17 hours ago, MarkH123456 said:

Alright thanks, but what is the 10 dollar difference at MSRP? I already know the g3 is smaller, but what are the other differences?

The G3 is minutely better in every way bar, I do believe, noise. The G2 is just fine, save your money.