Is the EVGA Supernova G2 650w enough for GTX 1070 and i7 7600K?

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dinosaurus

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Nov 3, 2017
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I am going to soon build myself a new PC. I would like to know if 650w is enough for the i7 6700k and Msi GTX 1070 Gaming X, i plan on overclocking both, CPU to possibly 4.4-4.6 ghz and not sure about the GPU yet. Is it enough?

Specs will be:
i7 6700k
MSI GTX 1070 Gaming X 8GB
Asus Z170 Pro Gaming Motherboard
Corsair Vengeance LPX 16GB DDR4 2400mhz
EVGA Supernova G2 650w 80+ Gold
Samsung 850 EVO 256GB SSD
Seagate Barracuda 2TB 7200RPM HDD
the Case is NZXT S340.
also going to add 2 be quiet! Silent Wings 3 fans to the front of the case.

Hoping to get a quick reply. Thanks

 
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SENOR BURTOS

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It's more than enough


Current PC hardware is VERY VERY VERY POWER EFFICIENT

To put things into perspective you should be able to OC both CPU and GPU with a 550W PSU and the one you picked up is very good quality and won't cause you any problems

but DON'T BUY THE I7

it's not worth it anymore
 
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photonboy

photonboy

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Jun 20, 2006
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My two cents:
1) as said the i7-6700K isn't a great choice anymore. It's about $310USD for the CPU (4C/8T, or 4-core plus hyperthreading)

The i5-8600K is a 6C/6T CPU that costs $280. So it's got SIX physical cores, is newer and costs roughly the same. Alternatively the i5-8400 is $200, non-overclockable but you save $80 and could use the stock cooler so that's about $130 difference which you could put towards a better graphics card.

2) For the budget I'd get a GTX1080 Asus Strix or similar for about $550 (even if you have to drop down to "only" the i5-8400 as the i5-8400 + GTX1080 is a better combo than a better CPU and GTX1070).

3) PSU - I found the EVGA G2 fans to be too loud, but when i got my GTX1080 setup I calculated and got the 750W version and used the ECO MODE option. When gaming I sit about 325W to 350W or so thus the FANS do not turn on.

So yes, 750W is overkill but it gave me the option to disable the fan. (the review said the fans were "quiet" which was simply not true... the BeQuiet PSU I bought my dad was quiet, as was a Corsair I had but the EVGA G2 is not quiet.. and it's not a one-off because I used two different 750W G2's).

4) DDR4 memory:
I'd get about 3000MHz or 3200MHz even with Intel. In the past it didn't matter as much, however I've seen a few benchmarks more recently showing that Intel CPU's benefit from faster memory for some games and applications.


 
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photonboy

photonboy

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Jun 20, 2006
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EXAMPLE build: https://pcpartpicker.com/list/HfLbBP

I don't have every part, nor did I use DDR4 memory that has RGB LED's (maybe you want that?) but I wanted to make a build so you could compare. Some quick points:

1) i5-8400 (6C/6T) doesn't need a better cooler (stock cooler fan should be fairly quiet with proper fan profile)

- the "K" series needs a very good CPU cooler. At minimum a $50 or so Cryorig H7, or better yet a 280mm liquid cooler but you'd have to look at benchmarks to see if that's worth the cost (with i5-8600K and liquid cooler that's close to $200 extra)

2) PSU is 650W. By my calculations, the i5-8400 + GTX1080 should sit just under 325W usually when gaming so ECO MODE on that PSU should keep the fan off most of the time (ECO MODE disables fan below 50% load)

3) motherboard has AC wi-fi (I often use Asus but they had a yellow/black theme I thought ugly)

4) Asus Strix is a great card, and it has RGB LED's on the backplate and side so it's a good choice for a windowed case.

*I'm not up on LED control, so if that's an issue do research on the motherboard, and DDR4 memory and how the software works. May need to use two or three different pieces of software.

**The M.2 SSD I linked is PCIe (not SATA). The motherboard supports both types, but note there are motherboards that support only one type such as PCIe but not SATA. Somebody posted an issue as they had a SATA version of M.2 but no support on the motherboard.
 
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