the difference is that 256-bit mem controller can give 2x the bandwidth compared to the 128-bit counterpart when both of them are working on the same clockspeed..
btw from the legitreviews webby when AA and AF is turned on, the 4670 can even beat 9600gt

Legitreview's 4670 review

but if they decided to use 256 bit mem controller instead of 128 bit it will

1. increase gpu transistor count thus increasing gpu die size thus making ati get fewer chips per wafer
2. increase the complexity of the pcb

ati did this in order to cut cost la dude, for sub rm 300 graphics card, 4670 performs very good, just check the link that i posted where legitreview tested all the games with max AF and AA settings, and there u can see that the 4670 can beat 9600gt

This post has been edited by ben_panced: Sep 12 2008, 05:03 PM

i think the price will be less than RM300

but u have to consider that certain games such as crysis and oblivion sucks at CF scaling, which means that in certain level of the the performance of CF is a lower than single card.
so the conclusion is single 4850 is better than 4670 CF coz it'll give u consistent performance in all games

yup but sometimes the performance of CF is lower than single card, i experienced it when i played crysis and oblivion, where when i checked the gpu usage and it showed 30% for each cards

theres no tax for pc products la

i got graphics corruption when i play far cry 2 with the hotfix driver wth ati driver team is doing

i benched with my q6600 running @ 3.41ghz and both of my 4850 @ 675/2000
and this is the settings i used:

Demo(Ranch Small), 1680x1050 (60Hz), D3D9, Fixed Time Step(No), Disable Artificial Intelligence(No), Full Screen, Anti-Aliasing(None), VSync(No), Overall Quality(Very High), Vegetation(Very High), Shading(Very High), Terrain(Very High), Geometry(Very High), Post FX(High), Texture(Very High), Shadow(Very High), Ambient(High), Hdr(Yes), Bloom(Yes), Fire(Very High), Physics(High), RealTrees(Very High)

btw this is the benchmark result for the hotfix driver


while this is the result for cat 8.10


from the result, u can see that the new hotfix driver although gives a lower max fps but gives a more stable frame rate compared to the catalyst 8.10, the only downside is that there is a severe graphics corruptions

or maybe they hide the details to obtain higher framrate?
either way check back my benchies for farcry 2 for the hotfix driver and the cat 8.10..
tho i cant play the game using the hotfix because of severe artifacts
guess im the unlucky one huh better to wait cat 8.11 instead

This post has been edited by ben_panced: Nov 1 2008, 12:30 AM

1000% agreed,
for nv driver, u can set custimized sli profile for each game while ati driver cant do this,
what this means is that for games that dun support CF at all, u have to go through the hassle of disabling CF everytime u want to play that game..
according to my experience, games that cant run with CF mode on my rig is:
NWN2 <- if i played this with CF on, then it'll bluescreen and restart
Far Cry 2 <- severe graphical artifact with CF on
apart from that there are several non CF optimized games such as Crysis..
other than that, CF works perfectly

both graphics looks the same to me as i had them both