Will a 850 watt PSU be enough, or overkill for SLI GTX 780's?

Austinomical · Apr 18, 2014

I will be building a new gaming rig soon, with just one 780, but I want to future proof it to go SLI down the road. Heres my build if interested:

http://pcpartpicker.com/p/3r3Jv

PCPartPicker part list: http://pcpartpicker.com/p/3r3Jv
Price breakdown by merchant: http://pcpartpicker.com/p/3r3Jv/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3r3Jv/benchmarks/

CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($179.99 @ Micro Center)
CPU Cooler: Corsair H100i 77.0 CFM Liquid CPU Cooler ($104.99 @ Newegg)
Motherboard: Asus Maximus VI Hero ATX LGA1150 Motherboard ($189.99 @ NCIX US)
Memory: G.Skill Sniper Series 8GB (2 x 4GB) DDR3-1866 Memory ($79.99 @ Newegg)
Storage: Samsung 840 EVO 250GB 2.5" Solid State Disk ($153.95 @ Newegg)
Storage: Western Digital BLACK SERIES 1TB 3.5" 7200RPM Internal Hard Drive ($79.98 @ OutletPC)
Video Card: EVGA GeForce GTX 780 3GB Video Card ($499.99 @ NCIX US)
Power Supply: Corsair Professional 850W 80+ Gold Certified Semi-Modular ATX Power Supply ($169.99 @ TigerDirect)
Total: $1458.87
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-04-18 15:32 EDT-0400)

senkasaw · Apr 18, 2014

I think that is a good psu selection for SLI'd 780's. Enough to be comfortable, but not overkill.

Spectre694 · Apr 18, 2014

Well I had the same question the other day for SLI 780Ti's and the answer was that is probably the minimum to go. Someone found a Tier 1 PSU 1000W full modular for me that actually cost less than yours at the moment. ($154.99)

This is it: EVGA]http://www.ncixus.com/products/?sku=83583&vpn=120%2DG2%2D1000%2DXR&manufacture=eVGA&promoid=1320#sthash.HS5Pteax.dpuf]EVGA Supernova 1000G2 1000W 80PLUS Gold Fully Modular Power Supply 10YRS Warranty[/url]

wolverine96 · Apr 18, 2014

A good 850W PSU would be barely enough. While it should work okay, I would suggest at least a 900W, or maybe 950W.

Buy both the CPU and the motherboard from Micro Center; when you bundle them, the motherboard is $169.99

Austinomical · Apr 18, 2014

wolverine96 :

Cool thanks!

Deuce65 · Apr 18, 2014

Your system is going to use between 600 and 700 watts. at maximum. The PSU you have selected is plenty.

dpassenger97 · Apr 18, 2014

there are few things in your build that can be improved..
1) That cooler is wayyy tooo much for an i5 4670k..go with noctua nh-d14 thats less expensive
2)you already have 1tb BLACK hdd, 256 ssd is way too much, go for 128GB.
3)780 is not future proof. go for asus r9 290x direct cu2 edition, so that you can crossfire any GCN based gpu that'll be released even after 2 years from....and r9 290x is way more powerful than a 780 and its just 100 more.
4)and check this psu, fully modular and 1000w
http://www.newegg.com/Product/Product.aspx?Item=N82E16817438019
or save some more money with this(even though its not expensive as hell, its awesome)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182188
5)and please extend your budget to add i7 4770k
http://www.microcenter.com/product/413248/Core_i7_4770K_35GHz_Socket_LGA_1150_Boxed_Processor
its just $250 but its a huge improvement over i5 especially because new games will take advantage of Hyperthreading..

dpassenger97 · Apr 18, 2014

in short go for this,
btw you forgot to add case and dvd drive.

PCPartPicker part list: http://pcpartpicker.com/p/3u5U8
Price breakdown by merchant: http://pcpartpicker.com/p/3u5U8/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3u5U8/benchmarks/

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor ($249.99 @ Micro Center)
CPU Cooler: Corsair H110 94.0 CFM Liquid CPU Cooler ($104.99 @ Newegg)
Motherboard: Asus Maximus VI Hero ATX LGA1150 Motherboard ($189.99 @ NCIX US)
Memory: G.Skill Sniper Series 8GB (2 x 4GB) DDR3-1866 Memory ($79.99 @ Newegg)
Storage: Samsung 840 EVO 120GB 2.5" Solid State Disk ($78.99 @ Newegg)
Storage: Western Digital BLACK SERIES 1TB 3.5" 7200RPM Internal Hard Drive ($79.98 @ OutletPC)
Video Card: Asus Radeon R9 290X 4GB Video Card ($619.99 @ Newegg)
Power Supply: EVGA SuperNOVA 1000G2 1000W 80+ Gold Certified Fully-Modular ATX Power Supply ($154.99 @ NCIX US)
Total: $1558.91
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-04-18 16:43 EDT-0400)

Austinomical · Apr 18, 2014

dpassenger97 :

in short go for this,
btw you forgot to add case and dvd drive.

PCPartPicker part list: http://pcpartpicker.com/p/3u5U8
Price breakdown by merchant: http://pcpartpicker.com/p/3u5U8/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3u5U8/benchmarks/

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor ($249.99 @ Micro Center)
CPU Cooler: Corsair H110 94.0 CFM Liquid CPU Cooler ($104.99 @ Newegg)
Motherboard: Asus Maximus VI Hero ATX LGA1150 Motherboard ($189.99 @ NCIX US)
Memory: G.Skill Sniper Series 8GB (2 x 4GB) DDR3-1866 Memory ($79.99 @ Newegg)
Storage: Samsung 840 EVO 120GB 2.5" Solid State Disk ($78.99 @ Newegg)
Storage: Western Digital BLACK SERIES 1TB 3.5" 7200RPM Internal Hard Drive ($79.98 @ OutletPC)
Video Card: Asus Radeon R9 290X 4GB Video Card ($619.99 @ Newegg)
Power Supply: EVGA SuperNOVA 1000G2 1000W 80+ Gold Certified Fully-Modular ATX Power Supply ($154.99 @ NCIX US)
Total: $1558.91
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-04-18 16:43 EDT-0400)

Whats so good about the Asus 290X. You guys are saying to get it, but all of the benchmarks I have watched show that the 780 is still better or at par. AND its cheaper?? SO why?

dpassenger97 · Apr 18, 2014

Austinomical :

dpassenger97 :

Whats so good about the Asus 290X. You guys are saying to get it, but all of the benchmarks I have watched show that the 780 is still better or at par. AND its cheaper?? SO why?

780ti is faster not 780, r9 290x beats the $1000 titan, check this review
https://www.youtube.com/watch?v=VcRudS9p5CE

dpassenger97 · Apr 18, 2014

Austinomical :

dpassenger97 :

Whats so good about the Asus 290X. You guys are saying to get it, but all of the benchmarks I have watched show that the 780 is still better or at par. AND its cheaper?? SO why?

and crossfire is better than sli, check this video
https://www.youtube.com/watch?v=pGN1na3F5do

Spectre694 · Apr 18, 2014

Austinomical :

So far only one person is suggesting the 290x and his sources were youtube which I wouldn't trust for unbiased benchmarks.
The 780 is faster than a 290x so which ever one is cheaper go for that the nvidia card is nicer though in my opinion. These are just two and there are plenty more comparisons on google. Go with the 780.

http://gpuboss.com/gpus/Radeon-R9-290X-vs-GeForce-GTX-780
http://www.game-debate.com/gpu/index.php?gid=1858&gid2=880&compare=radeon-r9-290x-vs-geforce-gtx-780

dpassenger97 · Apr 18, 2014

Spectre694 :

Austinomical :

So far only one person is suggesting the 290x and his sources were youtube which I wouldn't trust for unbiased benchmarks.
The 780 is faster than a 290x so which ever one is cheaper go for that the nvidia card is nicer though in my opinion. These are just two and there are plenty more comparisons on google. Go with the 780.

http://gpuboss.com/gpus/Radeon-R9-290X-vs-GeForce-GTX-780
http://www.game-debate.com/gpu/index.php?gid=1858&gid2=880&compare=radeon-r9-290x-vs-geforce-gtx-780

WELL YOUR sources are wrong
check this
https://www.youtube.com/watch?v=6xW-5jbGcMI
this is with stock cooler, asus cooler improves performance by quite a bit...dude r9 290x is called the titan killer for a reason

http://www.tomshardware.com/reviews/radeon-r9-290x-hawaii-review,3650-14.html
http://www.tomshardware.com/reviews/radeon-r9-290x-hawaii-review,3650-16.html
http://www.tomshardware.com/reviews/radeon-r9-290x-hawaii-review,3650-20.html
again stock cooler performance

dpassenger97 · Apr 18, 2014

oh ya and more
http://www.tomshardware.com/reviews/radeon-r9-290-and-290x,3728-5.html

Austinomical · Apr 19, 2014

dpassenger97 :

Austinomical :

780ti is faster not 780, r9 290x beats the $1000 titan, check this review
https://www.youtube.com/watch?v=VcRudS9p5CE

I have had AMD, and I hate them so much. So many problems. I want nvida's adaptive vertical vsync technology/phsyx and all their other perks

Vic 40 · Apr 19, 2014

I think that the build looks good.

I would pick the next hdd,it's still a good and fast enough choice as a data disc,
http://pcpartpicker.com/part/seagate-internal-hard-drive-st1000dm003
or for the same price as the wd black a 2tb disc,
http://pcpartpicker.com/part/seagate-internal-hard-drive-st2000dm001

For sli of the 780 would 750watts psu be the minimum imo,but it depends on which cpu is used too,the 2011 series use a lot more than this 4670K..The one you chose is a good one,the same one for less money,
http://pcpartpicker.com/part/corsair-power-supply-hx850
or the next,
http://pcpartpicker.com/part/xfx-power-supply-p1850bbefx
or "only" silver,
http://pcpartpicker.com/part/silverstone-power-supply-st85fp

You already have a case? Make sure the H100i fits.

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Will a 850 watt PSU be enough, or overkill for SLI GTX 780's?

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Austinomical

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