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SLI Vs. ATI X1900XTX

Andybtsn

Andybtsn

Andybtsn

Don
Joined
23 Oct 2005
Posts
44,566
Location
North Yorkshire
Hey, just wanting to clear something up...

At the moment, nothing can really compare against the X1900XT in SLI format, can it?

Someone told me this when I said, that a X1900XTX will be better than any other SLI setup at the moment, under 1900x2000 (odd!) resolutions, for games etc?

"Not true. It lets you bump up AA and AF at 'lower' resolutions than you suggested there and gives significant performance boosts over single cards...more importantly you get to have two graphics cards which in my books is cool as ****... "

Is this true ^^ ?
 
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Take out that swearie . . .

I thought the X1900-series didn't suffer that much from AA/AF too much so you could play in high resolutions with it. SLi will probably loose slightly less due to the sheer processing power, but I've been out of the loop for a while.

Having 2 graphics cards is a waste of money in my books, but then again I spend far too much money on other stuff :p
 
SLi is a very efficient method of having two cards working together. unfortunatly at the moment games dont support it increadibly well and as a result you do sometimes see SLi 7800s falling behind the single card. if running at resolutions such as 1920 you would notice an increase in framerate due to having twice as much video memory and just having two cards makes the difference. the way SLi works is that one card renders half the screen and the other one renders the other half. this for a start can obviously cause some issues, but is a far more effective way than Crossfire. Crossfire is more compatable but isnt as efficient as SLi. meaning you wont see the performance of two cards fully.. but back to the OP :p i dont think that the XTX is as powerful as 7800GTX 512MB in SLi.. there will be some instances at lower resolutions where the X1900 will pull ahead but only due to the fact SLi isnt currently supported in the bulk of games.
 
If u can afford it then sli will be faster, but its only worth it if u get them soon, otherwise just get one top end card now and another in a years time and it will cost the same and u will have got more performance out of them and two cards would have lasted about 2 years. unlike sli.
 
naffa said:
SLi is a very efficient method of having two cards working together. unfortunatly at the moment games dont support it increadibly well and as a result you do sometimes see SLi 7800s falling behind the single card. if running at resolutions such as 1920 you would notice an increase in framerate due to having twice as much video memory and just having two cards makes the difference. the way SLi works is that one card renders half the screen and the other one renders the other half. this for a start can obviously cause some issues, but is a far more effective way than Crossfire. Crossfire is more compatable but isnt as efficient as SLi. meaning you wont see the performance of two cards fully.. but back to the OP :p i dont think that the XTX is as powerful as 7800GTX 512MB in SLi.. there will be some instances at lower resolutions where the X1900 will pull ahead but only due to the fact SLi isnt currently supported in the bulk of games.
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Hi,

I've heard that SLI always requires overhead from the cpu to make it work, basically it relies on software, the calculations required to process the info eat up some of it's power.

Basically both sytems have their pros and cons, and I can't see either going bust soon, it's definatley a 2 horse race, there are easily enough consumers to buy cards from either company.

Trouble with the whole shebang - software (games) are not making it to the shelf quickly enough to take advantage of the hardware. The benchmarking ability of a card has such a buzz surrounding it, this is enough to release new cards every 3 months.

Regards
Raja
 
raja said:
Trouble with the whole shebang - software (games) are not making it to the shelf quickly enough to take advantage of the hardware. The benchmarking ability of a card has such a buzz surrounding it, this is enough to release new cards every 3 months.

Regards
Raja
Click to expand...

Many people are running cards in sli & crossfire to run games on there large widescreen LCD's/CRT's at high res of 1920x1200 and up.
 
A pair of 7800gt's in Sli will beat a single X1900XTX looking at that Toms hardware comparison and i doubt if a X1900 series could keep up with my pair at the res i play it (1600x1200@100hz) with all the eye candy turned on. Whoever told you that is telling porkies.
 
According the this months Custom PC mag, the X1900 crossfire modestly beats the 7800GTX512 SLi set up. In about 2 games out of 3 the ATI offering wins. But it's close most of the way up the line and in a couple of games the nVidia cards win by quite a bit. The odd thing about the review though is that not a single game suffered from the SLi bug that results in a single card being quicker than two (as far as i remember at least).
 
pastymuncher said:
A pair of 7800gt's in Sli will beat a single X1900XTX looking at that Toms hardware comparison and i doubt if a X1900 series could keep up with my pair at the res i play it (1600x1200@100hz) with all the eye candy turned on. Whoever told you that is telling porkies.
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A pair of 7800gtx 256mb in sli will beat a single x1900xt-x..
But a single x1900xt-x will keep up with a pair of 7800gt 256mb cards in sli.(Even at 1600x1200).
 
chaparral said:
A pair of 7800gtx 256mb in sli will beat a single x1900xt-x..
But a single x1900xt-x will keep up with a pair of 7800gt 256mb cards in sli.(Even at 1600x1200).
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Not from the benchmarks I've seen. Yes, the difference is smaller between this but a pair of GTs will beat an X1900XT-X.
 
chaparral wrote

A pair of 7800gtx 256mb in sli will beat a single x1900xt-x..
But a single x1900xt-x will keep up with a pair of 7800gt 256mb cards in sli.(Even at 1600x1200).
Click to expand...

Rubbish! :confused:

D.P. wrote

Not from the benchmarks I've seen. Yes, the difference is smaller between this but a pair of GTs will beat an X1900XT-X.
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Exactly! I would'nt have stated it if i had'nt checked first. An overclocked pair of 7800gt's has very similar performance to a pair of 7800gtx's at stock. For further proof check out the 3D06 thread here . In the single core section there is only one X1900Xt-X above me and thats only by 8 marks. Just look at the clock speeds of the cpu and gpu compared to mine. On top of that he also has dual channel memory support whereas i do not on socket 754.

Maybe the next round of cards will see a faster single card over a pair of 7800gt's but until then no way!
 
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