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View Full Version : have a question about my 5900


army of one
10-26-03, 12:48 PM
well i just replaced my 9500pro with a 5900... and i have a question about my 5900. someone told me that my 9500pro had better clock even thought it only being 275Mhz just because it was an 8x1 card... well if my 5900 is 4x2 isnt that the same as it has 8 pipelines? or is it still run as a 4 pipeline card? could someone please explain this to em as i just want to get a better understanding of my card... thank you

p.s. - i did try a search and nothin came up... so maybe this will help other that dont get exactly how this 4x2 works>?:confused:

bkswaney
10-26-03, 01:35 PM
The problem is that 4x2 only works in some things. Not all.

A 9500Pro is most likely faster at most things.

Do a search of the forums on it. There r tons of post on it.



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9800Pro for trade here: http://www.nvnews.net/vbulletin/sho...&threadid=20102
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digitalwanderer
10-26-03, 01:41 PM
Originally posted by bkswaney
A 9500Pro is most likely faster at most things.
Not necessarily. If he overclocks the 5900 it'll give the 9500 Pro a run for it's money in pre-dx9 games, but in anything using dx9 it's toast. (And anything using AA too, come to think of it.)

PreservedSwine
10-26-03, 02:04 PM
In terms of GPU pipelines, 4x2 does NOT equal 8x1

The Baron
10-26-03, 02:27 PM
Originally posted by PreservedSwine
In terms of GPU pipelines, 4x2 does NOT equal 8x1
No, but the crazy core speed advantage that the 5900 has more than likely negates the 8x1 versus 4x2 stuff.

army of one
10-26-03, 02:37 PM
well when does it mean it is an 8 pipeline card... and it what games?

Ruined
10-26-03, 02:59 PM
Originally posted by bkswaney
A 9500Pro is most likely faster at most things.


Uhhhh.... no. Even the non-ultra 5800 with old and slow drivers (never mind the 5900 on FW52.16 drivers which would blow these 5800 scores out of the water) smokes the 9500pro at "most things." If a non-ultra 5800 on 4x.xx drivers can smoke a 9500pro on most benchmarks, a 5900 with 52.xx drivers will obviously smoke the 9500pro as well, except moreso.

Benchmarks
http://www17.tomshardware.com/graphic/20030306/radeon9800pro-11.html

aapo
10-26-03, 03:43 PM
Originally posted by army of one
well when does it mean it is an 8 pipeline card... and it what games?

It's easiest to think that FX5900 is a 4 pipeline card that can do 2 texture fetches per cycle. Notwithstanding the technical point of view says the FX5900 has only one pipeline. It's a little different from the traditional architectures.

But yes, the FX5900 has worse pipeline configuration than R9500pro. However, it has a serious clock advantage and 256bit memory bus compared to 128bit of the 9500pro. It's a lot faster than R9500pro.

bkswaney
10-27-03, 03:25 AM
Originally posted by aapo
It's easiest to think that FX5900 is a 4 pipeline card that can do 2 texture fetches per cycle. Notwithstanding the technical point of view says the FX5900 has only one pipeline. It's a little different from the traditional architectures.

But yes, the FX5900 has worse pipeline configuration than R9500pro. However, it has a serious clock advantage and 256bit memory bus compared to 128bit of the 9500pro. It's a lot faster than R9500pro.

I forgot the pro had a 128bit bus. For some reason I was thinking about the nonpro with 256. :o



___________________
9800Pro for trade or sell here: http://www.nvnews.net/vbulletin/showthread.php?s=&threadid=20102
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Ruined
10-27-03, 07:42 AM
Originally posted by bkswaney
I forgot the pro had a 128bit bus. For some reason I was thinking about the nonpro with 256.

Even with the 256bit bus it would still get killed. As you can see by the above benchmarks it loses to the 5800 ultra by a wide margin (literally 50% slower in Unreal) without any AA/AF - an area where the 256bit bus would not be very useful. And the 5900 has a 256-bit bus as well, so that negates any advantage the 9500pro would have if it did have a 256bit bus.

In summary, the 9500pro can't compete with the 5900, 256bit bus or not.