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Add Second 7800 gtx for SLI? or Replace with 1900 XTX

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February 10, 2006 5:54:24 PM

I am getting insanely low Fps on fear with AA AF at 1280/768 with ult;ra quality

so i was thinking should I add a second 7800 gtx(256)? or should i replace my 7800 gtx with a 1900 XTX

both are about the same price for where i live

what do you think?

Opinions greatly appreciated

More about : add 7800 gtx sli replace 1900 xtx

February 10, 2006 6:28:44 PM

well, in the first place you shouldn't be getting insanely low fps with a gtx 256, but ignoring that fact, you'll get better performance out of 2 7800's. If you already have an sli board, get the 7800 gtx. But if you're upgrading your motherboard, get neither, wait till the new boards come out.
February 10, 2006 6:31:35 PM

well with softshadows enabled
i only get about 25-30 fps
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February 10, 2006 7:04:57 PM

Quote:
well with softshadows enabled
i only get about 25-30 fps

You can't use softshadows with antialiasing. Turn it off now, there isn't a card out that'll use it correctly.
Quote:
well, in the first place you shouldn't be getting insanely low fps with a gtx 256, but ignoring that fact, you'll get better performance out of 2 7800's. If you already have an sli board, get the 7800 gtx. But if you're upgrading your motherboard, get neither, wait till the new boards come out.

A single X1900 can beat dual GTX 512 cards. I think X1900 will make more sense. It probably, most likely make more sense. :wink:
If you're referring to the Tomshardware benchmarks, the only one they showed an X1900 XTX beat two 7800 GTX 512s was in F.E.A.R. with 4XAA 16XAF and soft shadows enabled. Softshadows and antialiasing do not work correctly in F.E.A.R. (As stated in the instruction manual), so benchmarking with both enabled may not be an accurate representation of how well each card runs the game. However I do believe the X1900 XTX is a better card than the 7800 GTX.
February 10, 2006 7:13:25 PM

if u turn off softshadows ull get clocker to 70 fps... softshadows are for crazy powerful comps, i duno about u but do u really think its worth another 400+ bux to enable softshadows? and even with it on ull still notice choppyness at that res, at 1024 u wont notice it with even 1 7800gtx...
February 10, 2006 7:24:01 PM

If you already have an SLI board, and already have a 7800 GTX, getting an X1900 would be kind of silly.

Just get another 7800 GTX, if you really need an increase in framerates...
Honestly, you're 2/3 of the way to a 7800 GTX SLI setup.

Going X1900 at this point, I dunno... if I was making a system from scratch I'd probably go with an X1900, but you already have a nice investment in that SLI rig.
February 10, 2006 7:26:57 PM

True dat.
February 10, 2006 7:28:02 PM

isnt the 1900 like 50-100 bux more than a 7800gtx?
February 10, 2006 8:44:25 PM

A couple of ideas:

1) Turn off soft shadows. Do they really add that much to your gaming experiance?

2) You can still sell your 7800 for good money on E-Bay taking the bite out of a x1900 purchase. In fact I bet you would end up spending a lot less total money on the x1900 after the sale of the 7800 than you would spend on another 7800.

EDIT:

I just checked and 7800GTXs cost about the same as x1900 XT's new. Adding another 7800 in SLI is going to cost $450-500. You should easily be able to get $300 for your current 7800 on E-Bay so upgrading to a x1900 XT would only cost $200.

IMO you would be a fool to SLI a second 7800.

Quote:
If you already have an SLI board, and already have a 7800 GTX, getting an X1900 would be kind of silly.

Just get another 7800 GTX, if you really need an increase in framerates...
Honestly, you're 2/3 of the way to a 7800 GTX SLI setup.

Going X1900 at this point, I dunno... if I was making a system from scratch I'd probably go with an X1900, but you already have a nice investment in that SLI rig.
Sorry Cleeve I usually agree with you but not this time.
February 10, 2006 8:51:13 PM

turn off softshadows, if its still too choppy for u get another 7800, no point in upgrading to a x1900 when the dual 7800's will perform better than the x1900xt, and a 1900xtx is about 550... ull end up losing like 300 bux and dual 7800gtx are faster than a single 1900xtx i think at least...
February 10, 2006 9:33:14 PM

Christ, why doesn't anyone listen? Soft shadows on F.E.A.R. are a useless feature, for many reasons. One, they require disabling antialiasing. Two, even when rendered correctly the soft shadows are not very high quality. They may look better than regular shadowing, but are still far from realistic.
February 10, 2006 10:33:33 PM

i didnt disagree with u :)  i was actually agreeing, but i added that if the single gtx wasnt enough power without SS on, then to get another gtx and not replace the one he has with a 1900xtx, dual 7800gtx's are faster than a single x1900xtx i believe..
February 11, 2006 6:01:52 AM

Quote:
Sorry Cleeve I usually agree with you but not this time.


Heheh no need to apologize. Lots of room here for differing opinions.

To explain my position, I dunno, he sells the 7800 and then he ends up with a single X1900 he can't use in X-fire mode unless he gets a new mobo.

Two 7800 GTX's will give it to a single X1900 9 times out of ten. The only notable thing he's giving up with a pair of 7800's is the (infamous) ability to do AA & OpenEXR HDR at the same time.

I dunno, a single 7800 GTX seems simpler in this case.

But an argument could be made for both. Can't lose really.
February 11, 2006 12:22:56 PM

In the future games X1900XTX will perform better than 7800GTX so go whit X1900XTX.
a b U Graphics card
February 11, 2006 3:12:07 PM

"I am getting insanely low Fps on fear with AA AF at 1280/768 with ult;ra quality
"

Ultra quality driver setting was intended strictly for cards with 512 MB framebuffer...; an SLI rig does not double the framebuffer memory, it merely duplicates it in both cards, so is still effectively 256 MB...

The framerates in FEAR w/ default Nvidia driver settings (quality), when using a 256GTX should be about 55 fps (with 4xAA/16xAF), and 81 fps with no aa/af in the game's included performance demo....(soft shadows off, all other options on MAX)

But if FEAR is your game, then selling your GTX and acquiring a 1900XT would be a smart way to go...a 1900XT is right above a pair of SLI GTX256 cards usually, and sometimes clallenging even a pair of SLI GTX512 models...
February 11, 2006 7:43:43 PM

A few opinions from me.

a.) FEAR can run softshadows and AA. Just don't use AA from the game. Enable Soft Shadows in the game settings, but use AA from CCC or whatever you are using. Softshadows are a dual edged sword, so I really can't recommend nor diss it - it's only shadows after all.

b.) The XTX crunches FEAR in all aspects. I can play FEAR in 1024x768 with Softshadows and AA at 4 + AF at 8 and everything else maxed out. IT'S DAMN SMOOTH. If I remove SS, I can up to 1600x1200 and still run smooth with AA4 and AF8 - although heavy fire fights can drag it a bit low due to my CPU (3.2 HT).

Here's three benches from the game (and my info above is not based on these benches but on actual game play):

1024x768 SS=on 4aa 8AF -> 0% below 25fps / 10% between 25 and 40fps 90% above 40fps ... min 35fps / avg 75fps and max 188fps

1600x1200 4aa 8af -> 0% below 25fps / 28% between 25 and 40fps and 72% above 40fps ... min 28fps / avg 57fps and max 143fps

c.) My 1800xl couldn't even go above 25fps with softshadows enabled. So I have first hand seen the difference 48pixel processors has done. If you can crank games at 1600x1200 and still enable AA then you know you got power at hand.

You get the performance of two cards (in some cases) in one single card. SLI/CrossFire to me isn't broadly supported, so I have no interest at all at this stage. The extra money you might spend on an extra card can go to low latency RAM, Raptor HDD, Z5500's, XiFi or even a nice valentine present for your woman.

BUT that's my opinion :twisted:
February 11, 2006 9:02:59 PM

Quote:
Sorry Cleeve I usually agree with you but not this time.


Heheh no need to apologize. Lots of room here for differing opinions.

To explain my position......While we are explaining let me further elaborate on my position. It does seem that 2x7800 GTX is a great way to play FEAR however the cost difference is what makes the extra 7800 not worth it IMO. The extra 7800 will likely cost over twice what it will cost to trade to a x1900 XT and almost twice what it would cost to trade to a x1900 XTX. If the cost was more on par I'd be tempted to suggest the extra 7800 card.

You can't assume the existing 7800 card is worhless. It has value so you can't count the full price of the x1900.

I just checked E-Bay and found 7800 GTX cards going for over $300. Here is a used one going for $359 reserve met with 2 days left.

http://cgi.ebay.com/EVGA-7800-GTX-256MB-LIKE-NEW-LOW-PR...

If the OP could get that for his old 7800 then the price difference to go with a x1900 XT would only be $150. That would be a nice trade up! Hmmmm....... Who wants a used XFX 7800 GT for about $259?
February 11, 2006 9:21:42 PM

You should SLI it. I have a SLI with the 7800 GTX and FEAR looks awesome. But the biggest advantage of SLI is not of just the frame rates but doing it so in high resolution like 1600x1200.
!