On 24/9/05 5:54 pm, "Marc van Gemert" <[EMAIL PROTECTED]> wrote:
> Although on paper an AGP 8x slot is faster than AGP 4x you won't notice the
> difference in real life performance.
> For example: once both my brother and I owned an AGP 8x video card (FYI: ATi
> 9800XT).
> The AGP slot on his motherboard was only 4x so the card ran @ AGP 4x.
> On my motherboard I could ran the card @ AGP 8x.
> After doing some benches I got a slightly higher score than him (leaving out
> the other hardware differences between his and mine config).
> Nowadays AGP is already an old technology, PCI-Express 16x is the new video
> card slot. The first motherboards have already arrived with 2 PCI-E 16x
> slots (instead of 2x8x) for a SLI config.
> But this is waaaay off-topic.
Same card in both slots is not a very good comparison for performance -
a good comparison would be a Radeon 8500/9000/9200 in the 4x slot compared
to the 9800XT in the 8x slot. I can put a 9200 agp in my 2x Sawtooth and see
a fall in performance when compared to an 8500 - slower core and memory
speed. Similarly the Radeon 9800XT will vastly outperform a 9200 or a 8500
in my Sawtooth - but it won't outperform itself.....
PCI-E cards will vastly outperform 33mhz pci cards but you wouldn't want
to put one in a 33mhz slot - if you could get it in - to compare the
performance it is best to compare one generation with the next. I'm not sure
what the best 128 bit 4 pipeline 4x card was - probably the 9000 Pro - but
if you put it in a Sawtooth at 2x or a MDD with 4x I imagine the performance
will be very similar - it's the same card.
The increase in performance derives from a combination of the next
generation slot combined with the next generation of cards built to take
advantage of it - imho anyway....
Pete
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