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8800GT SLI or single Radeon 4870 1GB - Page 12

post #111 of 130
Thread Starter 
Quote:
Originally Posted by pioneerisloud View Post

insanity is correct about the amperage on the 12v. Your PSU says 504w total on the 12v rails. 504 divided by 12 (watts divided by volts = amps) = 42a on the 12v rails combined. That's still MORE than sufficient for 4870 crossfire, as he proved. 4870 crossfire was taking about 480w at the wall, which means closer to 380w from the PSU itself. Meaning, you've got PLENTY of headroom.
Your quad DOES take a good bit more power than an e8400 at stock, this is true. e8400 = 65w TDP. Your unlocked quad is roughly 125-130w peak TDP. So about double the power consumption of that e8400.
However, your PSU still has enough power to drive that, so there's not a problem.

hmm i never knew that i been telling people its 50A for 3 years ahaha.
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post #112 of 130
Thread Starter 
Quote:
Originally Posted by quesoblanco View Post

How much r u getting the other 4870 for?

$65
Quote:
Originally Posted by PontiacGTX View Post

ok test wtih furmark/metro 2033 maxed/Crysis maxed and compare

just so you know furmark is opengl not dx. but anyway furmark tops at 76C but as been stated by nvidia and amd half a dozen times no game on earth will ever put that much load on a GPU.
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post #113 of 130
Thats a good deal 4870cf at your res will be smooooooth.
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post #114 of 130
Let's sum this up quickly.....

Grab that second 4870 1GB card. And enjoy faster than a 5870 performance (very close to 6950 performance actually). Your PSU can handle the load, so don't even worry about that. smile.gif

That's OBVIOUSLY the best choice you could do, as 8800GT's in SLI will be about on par with a single 4890, or a single 5830, or a single 6850 underclocked.
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post #115 of 130
Quote:
Originally Posted by philhalo66 View Post

$65
just so you know furmark is opengl not dx.

I mean compare temps each one and think which will the temp with 2xHD4870 from the charts I´ve sent replies ago biggrin.gif
post #116 of 130
Thread Starter 
Quote:
Originally Posted by PontiacGTX View Post

I mean compare temps each one and think which will the temp with 2xHD4870 from the charts I´ve sent replies ago biggrin.gif

well that's kind of an invalid point no games will ever put that much load on a GPU.
Quote:
Originally Posted by quesoblanco View Post

Thats a good deal 4870cf at your res will be smooooooth.

biggrin.gif thats why i was going to get it.
Quote:
Originally Posted by pioneerisloud View Post

Let's sum this up quickly.....
Grab that second 4870 1GB card. And enjoy faster than a 5870 performance (very close to 6950 performance actually). Your PSU can handle the load, so don't even worry about that. smile.gif
That's OBVIOUSLY the best choice you could do, as 8800GT's in SLI will be about on par with a single 4890, or a single 5830, or a single 6850 underclocked.

i agree you can lock this thread if you want.
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post #117 of 130
HD 4870 Cfx = 480GTX but in the future will be hard to sell 2

anyway the money you have to pay it´s all you need no saving more if you dont want
post #118 of 130
Thread Starter 
Quote:
Originally Posted by PontiacGTX View Post

HD 4870 Cfx = 480GTX but in the future will be hard to sell 2
anyway the money you have to pay it´s all you need no saving more if you dont want

who cares about selling? i wont be selling them ever!
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post #119 of 130
OK first off dont go multi card if your cpu can't hit 3.6-3.8ghz atleast. Even at that speed it will be bottlenecking. I ran 2 4870's on a q9550 @ 4.25ghz, which is quite a bit faster, just to get rid of all bottlenecks. My brothers q6600 @ 3.2 has troubles pushing 2 8800gt's in some games, couldnt imagine two 4870's.
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post #120 of 130
Quote:
Originally Posted by DzillaXx View Post

OK first off dont go multi card if your cpu can't hit 3.6-3.8ghz atleast. Even at that speed it will be bottlenecking. I ran 2 4870's on a q9550 @ 4.25ghz, which is quite a bit faster, just to get rid of all bottlenecks. My brothers q6600 @ 3.2 has troubles pushing 2 8800gt's in some games, couldnt imagine two 4870's.

Are you sure that's not because of the GPU's themselves? My Q6600 HTPC rig at stock speeds (2.4GHz) has no issues pushing 9800GT SLI in most games. The only games where I see a benefit in overclocking the chip are CPU intensive games like GTA IV (which doesn't support SLI anyway).
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