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850w vs 1000w Help plz!

post #1 of 19
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Here is my unique situation:

So I have the opportunity to get a Corsair TX850 for 40 bucks new. V1 not V2. But I was leaning towards a 1000W for my new build. Will an 850W be ok running this? I realize there isn't much headroom. I wouldn't really consider the 850W except for the extreme discount. This would save me about 125-150 bucks in my build:

i7 970
12 GB Ram
160GB SSD
2 X 1TB 7200RPM in Raid 0
2 Galaxy GTx 465
Blu-Ray combo drive
PCI sound card
USB 3.0 capture card
liquid cooled kit

What do you think. Some calclators say im fine with 740 some say I need 910.
What would you guys do in my situation?

Thanks for the feedback.
post #2 of 19
850 is more than enough.
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post #3 of 19
850 is overkill for that build.

Mine isn't much different and runs perfectly on 750. There's no way you need a 1000 unless you are running 2 gpu's and then some
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post #4 of 19
850W is plenty. The v1 TX850s are not amazing, but they're pretty good. Considering you could get one for $40 I would jump on it instantly.
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post #5 of 19
Quote:
Originally Posted by hellboy_101 View Post
Mine isn't much different and runs perfectly on 750.
There's a bit of a difference between 50% more cores/threads and two video cards when it comes to power draw, although the point stands that 850W is enough.
post #6 of 19
You can run that on a 650 watt... I would go with the XFX 650 watt. Modular and a SeaSonic rebrand. Can't be beat for $68.99 AMIR ($88.99 before)
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post #7 of 19
Quote:
Originally Posted by Princess Garnet View Post
There's a bit of a difference between 50% more cores/threads and two video cards when it comes to power draw, although the point stands that 850W is enough.
Yeh actually there is. Didn't even read it right >.>

But yes 850 is still enough now that I've read it correctly.
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post #8 of 19
Just wanted to clear that up. Under full load, the TDP and draw may be higher. Also, don't forget, the GeForce GTX460 isn't like the GeForce GTX 460. It's the more power hungry Fermi. Either way, yeah, 850W is plenty.
post #9 of 19
As stated 850Watts is probably about 400Watts more than you'll actually use. The TX750 is reasonably efficient and has a good amount of cables, and is of good quality, so if you can get it cheap, don't mind non-modular, and an older design then it's perfectly fine.

But you will be very unlucky if you ever push past 500W on your rig. More likely you will be pulling 400W for your system peak.

EDIT: Oops 465, my bad. You'll probably hit 500Watts system draw with that configuration, but not much beyond that.
Edited by ocpokey - 5/25/11 at 9:08pm
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post #10 of 19
Quote:
Originally Posted by ocpokey View Post
As stated 850Watts is probably about 400Watts more than you'll actually use. The TX750 is reasonably efficient and has a good amount of cables, and is of good quality, so if you can get it cheap, don't mind non-modular, and an older design then it's perfectly fine.

But you will be very unlucky if you ever push past 500W on your rig. More likely you will be pulling 400W for your system peak.
IDK if I would go that far. A 650 watt would be perfect for him IMO.
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