Discussion Forums > Technology
New Graphics Card
tomoya-kun:
--- Quote from: nstgc on October 11, 2010, 02:03:57 AM ---How important is memory badwidth? The processing power of video cards is increasing much faster than the speed of the RAM. It seems the higher end cards tend to be the ones with the best RAM and widest bus.
Given a 5770 and a downscaled 5830, how will each of these fair?
--- End quote ---
More memory than your bus width is less useful. Though I'm pretty sure a 4870> those cards.
rostheferret:
--- Quote from: nstgc on October 11, 2010, 02:03:57 AM ---How important is memory badwidth? The processing power of video cards is increasing much faster than the speed of the RAM. It seems the higher end cards tend to be the ones with the best RAM and widest bus.
Given a 5770 and a downscaled 5830, how will each of these fair?
--- End quote ---
In terms of gaming, very :P
Bandwidth is pretty much what determines how quickly graphical information can be stored. If the amount of RAM is the "buffer," during intensive gameplay this buffer might run low affecting the FPS you get. The bandwidth determines how quickly you can restore the buffer. At least that's what my limited knowledge tells me :P
As for comparisons, you can get into arguments over the benefits of clock speeds and bus widths, OR you can just look up a benchmark.
Link 1, 2. Basically, there's an improvement but it's not brilliant. The only thing I'd add is that the 4870 whilst performing well here, I reckon is really gonna suffer when tessellation starts getting big. Then again, apparently the ATI cards suck at it anyway.
nstgc:
So what is the reasonable ratio of RAM to bandwidth? Also, does anyone know when the 6xxx come out? it should be soon.
Sosseres:
It was launched on April 14, 2004. What are you talking about? ;)
tomoya-kun:
--- Quote from: rostheferret on October 11, 2010, 08:26:25 AM ---
--- Quote from: nstgc on October 11, 2010, 02:03:57 AM ---How important is memory badwidth? The processing power of video cards is increasing much faster than the speed of the RAM. It seems the higher end cards tend to be the ones with the best RAM and widest bus.
Given a 5770 and a downscaled 5830, how will each of these fair?
--- End quote ---
In terms of gaming, very :P
Bandwidth is pretty much what determines how quickly graphical information can be stored. If the amount of RAM is the "buffer," during intensive gameplay this buffer might run low affecting the FPS you get. The bandwidth determines how quickly you can restore the buffer. At least that's what my limited knowledge tells me :P
As for comparisons, you can get into arguments over the benefits of clock speeds and bus widths, OR you can just look up a benchmark.
Link 1, 2. Basically, there's an improvement but it's not brilliant. The only thing I'd add is that the 4870 whilst performing well here, I reckon is really gonna suffer when tessellation starts getting big. Then again, apparently the ATI cards suck at it anyway.
--- End quote ---
4870's are cheap, you can get a crossfire for less than an Nvidia card at the moment. Crossfire 4870s are more than enough to run most games nowadays, my Medal Of Honor runs on Max All.
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