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Core i5-750 & GTX 470 SLI

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July 8, 2010 2:02:29 AM

2 Questions.

1) Will my CPU bottleneck the video cards?

2) Is a 750W Corsair PSU enough or should i get an 850W?

More about : core 750 gtx 470 sli

a c 667 ) Power supply
July 8, 2010 2:17:03 AM

It is going to depend on your resolution it will bottleneck at lower resolutions. Get the 850watt Corsair.
a b ) Power supply
July 8, 2010 2:23:22 AM

Not really sure if the i5-750 would bottleneck, it depends which games, certain settings, and resolutions. I think that at stock speeds it might bottleneck them at a certain point. And for SLI, are you talking about 2,3 or 4 cards. For 2 cards, you should get the 850watt.
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a b ) Power supply
July 8, 2010 4:51:01 AM
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CPU won't bottleneck playing any newer games at, say 1920x1080. I'm running i5 750 with crossfire 5850s, and I can tell you they're stressed to the max so no bottlenecking. Although, I have OCed it up to 175 base clock.

750W PSU should be fine that's what I'm running with also a GT 240 PhysX card and an AuzenTech Bravura 7.1 sound card. However, if you can get the 850W Corsair might as well go for it since the Fermi cards are indeed more power hungry than my 5850s.
July 8, 2010 5:00:04 AM

Okay, so I will be using a 1920 x 1080 display so its all good right?

Ok, I'll get the 850 watt PSU.

1 last questions. I was looking at the Logitech z2300 speakers.

http://www.tigerdirect.com/applications/SearchTools/ite...

When it says total peak power of 400W what does that mean?

Does it mean it'll use that much?
a b ) Power supply
July 8, 2010 5:08:15 AM

If you have 2 GTX 480's...you might as well go with the 920 or 930, because the 1366 platform has more PCI bandwidth and 2 GTX 480's for a 1080p resolution is absurd. My ancient 8800GTS 640MB tackles many games at max settings on 1080p and handles medium settings for intense games...For 2 GTX 480s i'd be going with 2048x1156 gaming at minimum.
July 8, 2010 8:52:16 AM

tie23he said:


1 last questions. I was looking at the Logitech z2300 speakers.

http://www.tigerdirect.com/applications/SearchTools/ite...

When it says total peak power of 400W what does that mean?

Does it mean it'll use that much?


Can use that much but not from your PSU... It can use from the wall socket (they are powered) @ max volume and very dynamic music. By "total" they mean on the 3 channels (sub + 2 satellites) at the same time.
a b ) Power supply
July 8, 2010 1:37:37 PM

The logitech speakers can supply that power if needed which is most likley at max volume and full bass...etc. But they are connected to a wall outlet so they are easy to handle. On normal usage the power consumption will probably be a fraction of that...a 100watts or less probably.
a b ) Power supply
July 8, 2010 2:20:54 PM

SLI 480s isn't obsurd for 1920x1080. It'll be able to run anything at max. My CF 5850s at 1920x1080 can almost run anything at max. And I mean with 16AF and at least 4xAA. Metro 2033 and Cryostasis, Crysis, Crysis Warhead are all shy of 60 fps.

Also, if buying those speakers, you should definitely purchase a sound card. I have the lowly X540s and tried them first off mobo then off the sound card I bought, and it makes a big difference in clarity.
July 8, 2010 5:59:56 PM

wolfram23 said:
SLI 480s isn't obsurd for 1920x1080. It'll be able to run anything at max. My CF 5850s at 1920x1080 can almost run anything at max. And I mean with 16AF and at least 4xAA. Metro 2033 and Cryostasis, Crysis, Crysis Warhead are all shy of 60 fps.

Also, if buying those speakers, you should definitely purchase a sound card. I have the lowly X540s and tried them first off mobo then off the sound card I bought, and it makes a big difference in clarity.


First off.. I agree, 480's seem absurd at first, but you have to understand there is a market. There are competitive players who rely on framerates. There are people who want to run FUTURE games at max settings. There are also people who have multiple monitors... etc.

I don't understand the whole speaker thing though. If you use your computer for movies and music, I understand the want to blast the volume, but for games? Headphones make you much more involved. People talk about surround sound, but the precision of headphones can't be compared. You can pinpoint people's locations by their footsteps... And for music, you lose yourself.

And to the OP, an i5 750 is a great chip, I don't think you'll run into any issues. Maybe at lower resolutions, or maybe if you wanted to max out a game like Metro 2033.

EDIT: Oh, btw, do you already have the i5-750?
a b ) Power supply
July 8, 2010 6:26:04 PM

redechelon said:

I don't understand the whole speaker thing though. If you use your computer for movies and music, I understand the want to blast the volume, but for games? Headphones make you much more involved. People talk about surround sound, but the precision of headphones can't be compared. You can pinpoint people's locations by their footsteps... And for music, you lose yourself.


Yeah headphones are great. It's just a preference thing. I don't much care to have a headset on all the time. When I bought my speakers and sound card, I was looking at a lot of headsets too and decided I'd prefer speakers.
a b ) Power supply
July 8, 2010 7:23:22 PM

I like headphone/sets but after a while they squeeze your head and it starts to hurt...maybe more expensive ones are better suited for it..?
July 9, 2010 4:08:28 AM

@redechelon: No, i dont have one yet. Why?

Thanks everyone for clarifying the speaker issue.

Anyone recommend a specific sound card?
a b ) Power supply
July 9, 2010 4:16:19 AM

Depends on your budget. The AuzenTech offerings are very good (Bravura, Prelude, Forte...)

You could go with a SoundBlaster Titanium or Fatality

There's actually several decent ones that's all I can think of off the top of my head
July 9, 2010 7:08:47 AM

Well I just wanted to add that if you live near a Micro Center... i7 930's are $199. =]

http://www.microcenter.com/
You can see the locations in the dropdown menu at the top of the page if you're not sure.
July 9, 2010 6:08:47 PM

No I'm not close to a Microcenter. Thanx though.
July 9, 2010 6:11:31 PM

Best answer selected by tie23he.
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