Which PSU Should I Get For This Build?

Dragon05555

Dragon05555

New Member
My build:

Bulldozer octo-core - $320 (highest rumored price)

ASUS Sabertooth 990FX AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard 199.99

GPUs: Buying 2 ASUS GTX 570's off of a friend

Seagate Barracuda 7200.12 SATA 6Gb/s 1 TB Internal Hard Drive with 32MB Cache

ASUS DRW-24B1ST/BLK/B/AS Black SATA 24X DVD Burner - Bulk - OEM $18.99

Noctua NH-D14 120mm & 140mm SSO CPU Cooler Now: $89.99

OCZ Vertex 2 OCZSSD2-2VTXE60G 2.5" 60GB SATA II MLC Internal Solid State Drive (SSD) $124.99

G.SKILL Sniper 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9D-8GBSR $72.99

Acer G235HAbd 23'' 5ms 1920x1080 WideScreen LCD monitor 300 cd/m2 1000:1 $149.99

LIAN LI Lancool PC-K57 Black Steel ATX Mid Tower Computer Case 59.99

My friend (who helped me pick out the parts and builds gaming PCs as a hobby) said the PSU that would work for this build just fine would be this: CORSAIR HX Series CMPSU-850HX 850W ATX12V 2.3 / EPS12V 2.91 80 PLUS SILVER Certified Modular Active PFC Power Supply Now: $164.99

He told me corsair under rates their PSUs and it's the best psu he has ever had. Power is the part of pcs i understand the least
 
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Ok, 1 card max is 219W, thats 438W for two cards (max). That is 36.5W on the 12V rail required for just the cards.

The Corsair 850 will work fine, but 2 x 570s on that resolution is total total overkill.
 
bigfellla said:
Ok, 1 card max is 219W, thats 438W for two cards (max). That is 36.5W on the 12V rail required for just the cards.

The Corsair 850 will work fine, but 2 x 570s on that resolution is total total overkill.
Click to expand...

This

Benny Boy said:
SSD - Get SATA III
Memory - Faster speed and better timings can be as little as a couple bucks more.
Click to expand...

This.
2 GTX 570s are overkill.
And SATA III is a must. :D
 
bigfellla said:
Ok, 1 card max is 219W, thats 438W for two cards (max). That is 36.5W on the 12V rail required for just the cards.

The Corsair 850 will work fine, but 2 x 570s on that resolution is total total overkill.
Click to expand...

No such thing as overkill when it comes to pumping out FPS :D

Benny Boy said:
SSD - Get SATA III
Memory - Faster speed and better timings can be as little as a couple bucks more.
Click to expand...

+1

mihir said:
This



This.
2 GTX 570s are overkill.
And SATA III is a must. :D
Click to expand...

See above :D
 
linkin said:
No such thing as overkill when it comes to pumping out FPS :D
Click to expand...

Excuse me, you are not getting any more FPS by putting a second 570 in there as the CPU and other components, not least the resolution will bottleneck.

Its total overkill, exactly what the word means.

Unless you want the excruciating nearly unneeded framerates in your gaming experience, have an extensive e-peen, or just want to impress... really it's your call to make. High-end SLI is expensive and does not make any sense value for for money wise. But everybody knows this right? ... RIGHT?!
Click to expand...
http://www.guru3d.com/article/geforce-gtx-570-sli-review/16

Essentially if you have money to burn, then get 2 x 570, but its a complete and utter waste of money unless you are planning on 6 x 1900 x 1080 resolution. Use the money saved and get an SSD instead.
 
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linkin said:
See above :D
Click to expand...
At Full HD the GTX 570 is capable of handling any game with an above playable FPS.
The second card would be completely unnecessary and going for a multi-GPU config when it is not even needed should be avoided.
 
Thanks for the replies guys. Unfortunately I already bought the SSD, so I don't want to return it :3

I've gotten a great deal on all of my parts, shaved several hundred dollars off my final budget just by shopping around, etc.

As for the 570's. . . I'm really getting a deal on them. I know the guy in california really well and he's giving me a good discount. Those 570's are normally $350 each, but he's giving me both of them for $450, including shipping (California to St. Louis).

Also, I'm not %100 sure what I want to do in the future but I may get multiple monitors, so that should justify 2 570's methinks
 
If you max high end games at 1080p with maximum AA and AF you can indeed soar above 1gb of VRAM usage. At that point it'll start using system memory which is slower because it needs to swap between GPU/CPU/HDD

570's have 1280MB which should be fine, but in SLI, you'll still only have 1280MB. Unfortunately that's how SLI and Crossfire work.

You're getting a good deal too. You can always benchmark for fun :D
 
Thanks. Yea, this build got a lot more powerful than the original build design I had, but it will still cost less than 2k. . .

Any bad decisions I've made (SATA II instead of SATA III SSD, etc), I'll get experience from, as this is my first build
 
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