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X800XT PE vs X850XT

Goi

Diamond Member
I'm guessing there isn't a huge difference between the 2, or in fact, between any X800XT(PE or not) and any X850XT(PE or not). Is this true? I knot eh X800XT is based on the R420 and the X850XT is based on the R480, and specs wise, the X800XT PE seems to be identical to the X850XT except for a 20MHz faster memory. Clock for clock, does the R420 perform identically to the R480?
 
Thanks. I guess my last statement about the R420 and R480 is kinda true then. What's the difference between the 2 then? They're even both manufactured using the same 0.13u process.
 
I mean, why did ATI feel that it was neccessary to come up with R480 when the R420 is just about identical?
 
basically just a refresh with higher clockspeeds...and price too.

i thought that ati released X850Pro/XT/XTPE to keep their "speed crown" on prolly because the 6800Ultra was beating the X800XT/XTPE (dont remember which one) in *some* benchmarks. i personally thought that it was silly to release something new barely 6 months later after they brought out the X800 cards...
 
OK, I looked at a review of the X850XT and AT claims there's absolutely no architectural difference between the R420 and the R480. Anyway, when I mention the 2, I mean to compare them for similar interfaces, i.e. R420 vs R481 for AGP, likewise for PCI-e. I guess you guys are right - it's simply a respin, though they're both at 130nm.
 
I thought the x800xt is AGP native and it uses a chip to bridge to PCI-E, and PCI-E x800 was never mass produced to enter the market?
the x850xt is PCI-E native and uses a chip to bridge to AGP. That seems to be the case but I ain't sure.
 
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