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8800GTS 640 SLI vs HD 3870 CrossFire

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April 15, 2008 2:19:30 PM

I got a 8800GTS 640 now, but when I buy a new MB some day I wonder if I should buy a MB that supports CrossFire or one that supports SLI. If buy a MB with CrossFire-support, I think I'm gonna buy a couple of HD 3870s, but then I have no use for the 8800GTS I already have. But would two HD 3870s beat two 8800GTS'?

Thanks
April 15, 2008 2:40:26 PM

Dont look at 3D mark. Look at over all Frames, The 640 has the extra ram that should give it the advantage at high Resolutions:) 

http://www23.tomshardware.com/graphics_2007.html?modelx...

Prey
http://www23.tomshardware.com/graphics_2007.html?modelx...

Warhammer
http://www23.tomshardware.com/graphics_2007.html?modelx...

battlefield
http://www23.tomshardware.com/graphics_2007.html?modelx...

Dark Messiah
http://www23.tomshardware.com/graphics_2007.html?modelx...

It only looses at 3Dmark and Doom3. And not by alot!

Related resources
April 15, 2008 3:11:22 PM

Ok, thanks. Sry for double-post btw..
I'm using a 22" monitor on 1680x1050 now, so I don't know if there will be a hole lot difference between 640 and 512MB.. Maybe with lots of AA/AF..?
And who got the best drivers for multi GPU setups..?
a b U Graphics card
April 15, 2008 3:28:53 PM

badge said:
Radeon 3870>8800GTS 640 generally speaking.

http://www23.tomshardware.com/graphics_2007.html?modelx...


Sorry but over all, the GTS still comes out on top.



As far as SLI/Crossfire goes....
I would prefer the Crossfire setup.
I believe that the GTS SLI and 3870 CF will perform similarly but I have a dislike for nVidia's motherboards.

Before you replace anything, why don't you try to overclock your GTS?
I am running a GTS 640 on a 22" also and can personally attest to the performance gains to be had.
If you still want to spend some cash, wait till the 4xxx series comes out before you make a jump.
Only another month or two left so might as well.
April 15, 2008 3:29:35 PM

If you wait another month or two, the new ATI cards should be out, which would be better than either two cards you mention.
April 15, 2008 3:52:30 PM

You can't assume look what happened witht he 9800 GTX
a c 271 U Graphics card
April 15, 2008 4:58:43 PM

San Pedro said:
If you wait another month or two, the new ATI cards should be out, which would be better than either two cards you mention.

Just like the 2900XTX 'GTX Killer', oooh I can't wait. :sarcastic: 
April 15, 2008 5:15:49 PM

After the 2900 fiasco and the 9800 fiasco ATI would do its homework for sure :) 
April 15, 2008 5:23:42 PM

Mousemonkey said:
Just like the 2900XTX 'GTX Killer', oooh I can't wait. :sarcastic: 


Do you mean the XTX 2900 that was never produced because it ran so poorly? I'm looking forward to the ATI 4xxx series cards myself, but I'm making no judgments until the actual benches are out.

@OP- I have owned the 8800 GTS 640 and now have a 3870. They perform almost identically, but the 3870 seems a bit more stable (better drivers?) and the 3870 is a lot quieter, which I like. Since you have a 8800 GTS 640, I'd wait until the new ATI 4xxx series cards come out before buying something new. Even if the 4xxx series don't perform as well as expected, the 3870s should come down a bit in price, thus making the purchase even better. Your monitor is the same size as mine and Crossfire would help in some games and not in others. A larger monitor and I think Crossfire would be the way to go, but at 1680x1050, the monitor size seems right on the edge of whether or not its worth it.
April 15, 2008 6:20:46 PM

Thanks for replies (:
I would have waited a couple of monts anyway, and now I got even more reason to do that. Someone know if there are major changes on the 4xxx?
Btw outlw I run the card on 650/950 (:
April 15, 2008 6:35:53 PM

I had the 640mb 8800GTS in SLI @620/900, and, before one card failed, the performance was stellar, I was really impressed compared to my experience with two 7600 GT's in SLI. Now I have a single 9800 GTX @800/2000/1185) which beats the old 8800GTS SLI setup in some games (Crysis), but not in others (ET:QW, COD4). I haven't played with the 3870 in CF but my personal experience was ace with two 8800GTS models in SLI (this would be a hi res testimonial at 1920x1200, so I don't know how it would play out at your res) was good.
April 15, 2008 7:01:10 PM

I also have a 8800 GTS 640 in Sli @612/1404/900 and it's worth it, specially now when you can get old GTS for cheap. BTW I'm playing at 1680x1050 same as you and the difference between one card and SLI is huge so I would say go for it.
a b U Graphics card
April 15, 2008 7:33:46 PM

I have an 8800GTS 640 PCIE 16x, but I prefer my Radeon 3870 PCIE 2.0 at 16 x 10. If I were to SLI/Crossfire, I would choose the X38/48 chipset in Crossfire over any nvidia SLI chipset available. Just my preference.
a b U Graphics card
April 15, 2008 7:40:04 PM

Quote:
Sorry but over all, the GTS still comes out on top.



Installed in my system my Radeon 3870 performs better than my 8800GTS 640.
April 15, 2008 7:41:24 PM

I adore my 3870 crossfire setup on a X38 mobo. I'm running them on a 24" Sam'y and get minimum 60Fps with all my games (inc COD 4) maxed bar of course Crysis. Plus i think Crossfire has a better driver support and works with most if not all games generally better than SLI.

Single card head to head nVidia. But i would say Crossfire over SLI unless using gt/gts/gtx.
April 15, 2008 7:56:47 PM

Its a well known fact that sli is alot better than crossfire, escpecially since the crossfire had alot of compatibility issues.

I'm not saying that to bring any1 down, but its realistic, if I find the article again for you guys I'll post it. you guys are free to look into it.

As for the 3870 vs the 8800 GTS 640, I'm a little skeptical because now that I look at it, the 9600 GT is a better card than the 8800 GTS (G80) and it still doesn't outperform the 3870 (with out AA on).

I'd say from estimates that, the 3870 would be around equal to with filtering on, while with out filtering it would surpass it.

Either way the 3870 is a better investment. I noticed that the charts on THG are out of date with the drivers.
a b U Graphics card
April 15, 2008 8:01:38 PM

I have 3 SLI systems in SLI running. I use two of them every day. I'll take my X38 with the 3870 over the three put together. It towers over them.

Oh yeah, I paid $310 for my 8800GTS 640 about 6 months ago. I bought my Radeon 3870 for $139 after rebate a couple of months ago. Call it even if you want.
April 15, 2008 8:05:23 PM

thats weird I wouldn't, 3 way sli is flawed thats a given. You'll only see improvements at higher resolutions. While 2 way SLI has been known to get even 90% increase. If you ask me thats really good!
a b U Graphics card
April 15, 2008 8:14:31 PM

I have three seperate SLI systems. I have run Nvidia SLI since NF4. So, the 8800GTS 640 is not a damn bit faster, better looking, epenis or burp your baby better than a Radeon 3870. My 512 DDR4 at 2300MHz is kind of epenis happy. I guess if you have 8800 you get the chicks, rag ugly or whatever your trip is.
April 15, 2008 8:28:29 PM

L1qu1d said:
You can't assume look what happened witht he 9800 GTX


maybe you didn't know about this one liquid but as soon as I figured out it was a G92 core, and it was practically common knowledge way before it actually came out, most ppl knew it was just a renamed 8800gts 512, or a G92 core, so that one was not surprising, maybe it surprised you, but that could be because of you reluctance to see the 9800gtx as the gay-ness that it truly is....
April 15, 2008 8:34:44 PM

L1qu1d said:
Its a well known fact that sli is alot better than crossfire, escpecially since the crossfire had alot of compatibility issues.

I'm not saying that to bring any1 down, but its realistic, if I find the article again for you guys I'll post it. you guys are free to look into it.

As for the 3870 vs the 8800 GTS 640, I'm a little skeptical because now that I look at it, the 9600 GT is a better card than the 8800 GTS (G80) and it still doesn't outperform the 3870 (with out AA on).

I'd say from estimates that, the 3870 would be around equal to with filtering on, while with out filtering it would surpass it.

Either way the 3870 is a better investment. I noticed that the charts on THG are out of date with the drivers.


dude you musty be hallucinating over all that lead poisoning :lol:  , the SLI does not scale better than crossfire, its actually vice-versa, you must not be reading many reviews to have come to that conclusion. besides ati really needed the crossfire to work well b/c there GPU's are not strong enough to take on Nvidia one on one, so that being established you should really read some of the reviews made at andandtech, maybe even do some of your own reviews, since you can actually control the quality of it..if not you shouldn't be lyig to others b/c all that does is spread an un-truth which hurts newbies the most, for the love of good will anybody think about the newbies???? :lol:  :lol:  :lol: 
April 15, 2008 8:59:12 PM

Hehe, this isn't easy you know, half of u says the SLI-setup is the best while the other half says CF is better.
Remember I already got one GTS, so it would be slightly cheaper for me to buy another GTS. But then, two HD3870s are, believe it or not, nearly the same price as one 8800 GTS 640 d:
April 16, 2008 1:28:16 AM

I'm not lieing its what Pc maximum says ever read their reviews? W.e I dont really care to be honest wit u. I know what I saw. And I'm not that worried but I kno for sure sli is supported alot more than crossfire. No1 can say anythigna bout that.

People need to stop being fanboys! I might look like 1 but I'm not!
April 16, 2008 1:48:55 AM

Hey L1qu1d I think FrozenGPU may be right about this. Most of the stuff I recall reading indicated that CF scales better than SLI - which is technically a different metric than which configuration has more games optimized for it (in which case, you might be right).

p.s. I've never owned an ATI. Not that I wouldn't, but I think I'm fairly inoculated from any fanboyism accusations on their account.
April 16, 2008 2:22:49 AM

I can leave it at that ok. I just don't trust Ati's crossfire because they went through too many problems and hassles, most known was that stupid dongle. I hated that when I had my atis!
April 16, 2008 2:32:16 AM

L1qu1d said:
I can leave it at that ok. I just don't trust Ati's crossfire because they went through too many problems and hassles, most known was that stupid dongle. I hated that when I had my atis!


they don't use dongles anymore, the crossfire that was used on the older ati cards like the x1000 series used the dongles, since the newer generations crossfire actually does scale better, it's just that the ati gpu's are still weaker unit per unit then the nvidian based core's, if ati is able to produce a gpu that is actually stronger than the nvidian based counterpart, then everybody will be able to understand why cf scale's better.
April 16, 2008 2:35:03 AM

now u can just use a crossfire bridge like the sli bridge and it works pretty well, u just have to remember that in CCC u have to enable crossfire. If ati was more powerful i would have kept my hd 3870 cf set up, as powerful as it is, i liked my mobile platform that had only a e3110 and a g92 gpu...
April 16, 2008 2:44:03 AM

Trust me I'm hoping ATI comes back so we can buy cheaper video cards!
a b U Graphics card
April 16, 2008 2:55:16 AM

Yep, me too.

SLI worked great back in the day for me. Boosted my 3DMark05 score from 5500 to 10000! That's pretty good scaling to me :D 

Anyway, I think the main confusion here is that the SLI vs Crossfire argument is a complicated one. First, if you SLI superior cards they'll beat crossfire. Second, crossfire/SLI performance varies from game to game. In ATI optimized, Crossfire wins. In NVidia Optimized, SLI wins. In evil games, both fail miserably.
April 16, 2008 11:44:40 AM

I've had crossfire setup on my main rig since the X1900XTX's and although i've owned them (ATI) more than nVidia cards it's because ATI have been very good at bringing out cheap cards that aren't the best on their own but scale very well when working as a pair.

I'm not a fanboy i've own'd 6600GT's/GeForces back in the day, and have recently swapped from a AMD 6000+ to a Intel 8400. I'm tight with my money but make sure it goes a long way, as far as i see ATI/AMD Gfx cards are bang for buck in Crossfire better. Also i've never had any serious driver problems they were all mainly 'user being a pleb' problems.

I agree with EXT64, where optimized games tend to have a major difference in the outcome.
April 17, 2008 1:53:41 PM

So the conclution is wait for new ATI cards and/or new drivers and compare them to the 8800? d:
a b U Graphics card
April 17, 2008 2:06:30 PM

DoubleT said:
So the conclution is wait for new ATI cards and/or new drivers and compare them to the 8800? d:


Sell your 8800 GTS 640 and buy an X38/48 and two 3870's in Crossfire. I own an 8800GTS 640, X38 and 3870. If I needed more power for my Samsung 40" 1080i, I would buy another 3870 and Crossfire them. Personally, I wouldn't think of going 790i when X38/48 is available. Isn't the latest ASUS Striker 790i MB like $459? I bought my ASUS Maximus SE for under $250.

http://www.hardwaresecrets.com/article/391/8

edit bold
April 17, 2008 2:29:34 PM

There are other choices other than Asus Striker, like EVGA (315$ CAD). Personally I saw that crossfire does actually scale better, but if your making a purchase right now, I still think an Nvidia card would be better. As for in the future, we'll have to wait and see how the 4000 do. If I was in your position, I would stay with the 8800 GTS 640, or do a minor upgrade to an 8800 GS or 9600 GT (about 100-140 depending on where you buy it). While the 3870 is a good card it is more expensive than both the 8800 GS and 9600 GT and does do as well with AA on.

As for the 8800 GS, it's performance matches that of the 8800 GTS 320, but I've heard it to be very overclockable.

If your impatient, buy a minor upgrade (9600 GT or 8800 GS)

If you can wait, wait for the 4000s.

I kno that if the 4000s do as well as people say, I'm ready to switch over as soon as they release:) 
a b U Graphics card
April 17, 2008 2:34:53 PM

Two x 8800GTS 640 would be nice too. I have two machines running in SLI currently, 7800GT x 2/AMD 4800X2 and 7600GT x 2/AMD FX55. I'm waiting for the 3870 to go down to the price of this and I'll Crossfire this one.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Hey I have a NEW A8n32-SLI Deluxe I plan on using my X1800XT with. Two 8600Xt's would be cute.
April 17, 2008 2:42:21 PM

lol:p 

Yeah but unfortunately he doesn't ahve sli:( 

I swear ppl think I'm crazy i upgrade ever 4 months lol, but I'm a frame rate fanatic,:p  I barely even play the games I just love benchmarking!

I would really like to see the next gen Video cards I really don't want to be disaapointed because I really doubt the Single cards will be able to beat the 9800 GX2. they might come close.

I dunno just an opinion, I've been wrong before!
a b U Graphics card
April 17, 2008 2:48:13 PM

The price on the first two is really reasonable. How is the 9600GT performancewise to the 8800GT (G92)? Gotta be a gimmick here on this new rlease. Newegg has a BUNCH of 9600GTs. I have a couple dozen video cards. LOL! Old stuff.

http://www.newegg.com/Product/ProductList.aspx?Submit=E...
April 17, 2008 2:59:45 PM

the 9600 GT can't do what the 8800 GT can. the 9600 GT sports the G94 GPU, which has half the amount of pixel/Vertex Pipelines (8800 GT (32) vs 9600 GT (16))

In benchmarks results, the 8800 GT stands at a comfortable pace of about 10-20 Frames with AA off and 5-10 Frames with AA off (THG 9600 GT Review results)

Although the 9600 GT runs cooler and when overclocked, there are rumours that it matches the Reg 8800 GT (Don't ask me). It draws less power aswell.

It is the budget card for now:p 

Newegg is really overpriced:S

Here in Canada, the Galaxy 9600 GT is around 100 after 40$ MIR. The BFG is 140 after 30$ MIR :S.

I haven't seen an 8800 GS yet though!!!!!

April 17, 2008 3:00:59 PM

I wonder when ther will be a PHYSICAL quad sli mobo:S hmmmmmm! If there already is one I prob should be kicking myself:) 
a b U Graphics card
April 17, 2008 3:17:32 PM

I almost biought that EVGA 9600GT 256MB for $149. I'll wait for 3870's to come down and possible crossfire with this one. But, I don't game, my son does. I did buy the 8600GT for $49 after rebate. I build a lot of mid range gaming machines for my son's friends. And I have no more spare PCIE cards laying around right now.

I bet that Quad CrossfireX makes for a hairy machine

edit sp.
a b U Graphics card
April 17, 2008 3:23:00 PM

Looks like Nvidia is really going to push the 9 series. Newegg is loaded up.
April 17, 2008 4:26:56 PM

I think I'm going to wait and see if the 4xxx is any good.. Maybe look at the 9800 GT to, even though some say that it's just a "rebadged" 8800 GT with higher clock speeds etc. but the 8800 GT prices are going to drop by then anyway, so..
!