Thats an LE, so the PRO & XT could be in the 8500GT range despite being 64bit.
The 8500 GT is based on the cheaper G86 core, not on the G84 (used in the 8600 GT and 8600 GTS).
Thats an LE, so the PRO & XT could be in the 8500GT range despite being 64bit.
Yup, I know that.The 8500 GT is based on the cheaper G86 core, not on the G84 (used in the 8600 GT and 8600 GTS).
Yup, I know that.
G86 being 128b has an theoritical advantage over RV610, if thats the score of a 64b RV610LE then AMD could possibly be not that far behind in the low-end segment.
VR-Zone said:at 1280x1024 resolution, 3DMark06 scores stood at 12xx
VR-Zone said:Its 3DMark06 scores (1280x1024) stood at 22xx
How do you know this is an or case? Were there images of this "RV610" board that a comparison can be made? If there are memory bus differences between them, wouldn't that also have some sway on the potential PCB costs as well?A small 65nm core (AMD), or a cheaper PCB (this Nvidia 8500 GT looks like it's using a 7600 GS' PCB, just like the 8600 GT's PCB is a dead ringer for the old 7600 GT one).
How do you know this is an or case? Were there images of this "RV610" board that a comparison can be made? If there are memory bus differences between them, wouldn't that also have some sway on the potential PCB costs as well?
Based on VR's reports so far:This is what we know about both low end cores right now (yes, they're not direct equivalents).
8500GT RV610XT
8400GS RV610PRO
8300GS RV610LE
RV610 is smaller, not sure about power consumption as it will depend on the clocks.And is a RV610 really smaller at 65nm than a G86 at 80nm, in terms of die size and power consumption ?
That makes perfect sense.Assuming R600's die size is ~420mm2 on 80nm, and RV630's die size is ~160mm2 on 65nm... Then, if the architecture was very scalable (which you would expect it to be), it would be nearly exactly half a R600. It would certainly make sense if RV670, RV630 and RV610 were 75%, 50% and 25% of R600 respectively.
Your prior post was referencing the 8500GT board specifically, not some others. Given that you were talking about what is "known", why switch to what isn't? For instance, what would the score be for these configurations you are now drawing reference to?What makes you say that other editions of G86 (like the 8400 GS and 8300 GS) don't have a further "LE" version with a 64bit bus just waiting for release ?
And that it's not pin-compatible with the 7300 GS' PCB ?
Based on VR's reports so far:
If you're so certain, i honestly believe you.RV610 is smaller, not sure about power consumption as it will depend on the clocks.
Also would a 64b PCB be cheaper to manufacture compared to 128b?
How do you know?-G86 will be the fourth pin-compatible core on these PCB's, after NV43, G73 and G84-
How do you know?
Well, its what VR have suggested so far. Only when the cards are launched, we will get to know such details.The X1300 XT is just a renamed (and shrunk) X1600 Pro, so you can't really count it as a separate version, performance-wise.Unless you're willing to go the extra mile and count the 7600GS as a part of that competing family...So, we can't be certain there will be three distinct RV610's.
I linked to it right in my post, it's Arun peice. As for your second question, I believe there is an Arun's post on that very same topic; 65nm may not cheaper than 80nm.If you're so certain, i honestly believe you.
Although..., i'm curious.
Which process is more expensive right now at TSMC ?
The "value" 80nm or the "value" 65nm ?
And why did Nvidia decide to make G84 and G86 at the 80nm half-node, when the G72 is being produced right now at 65nm ?
Nvidia's AIB partners might already have lots of G7x PCBs lying around for this exact purpose.Well, if Nvidia is really willing to do it for even the low end 8300 GS, it must be !
There's more to it than just bus width (surface mounted components, layers, mass production and reusable PCB's from previous generations -G86 will be the fourth pin-compatible core on these PCB's, after NV43, G73 and G84-, etc).
The images were sufficiently detailed that you could tell they were exactly pin-for-pin compatible?As i said before, just look at VR-Zone's picture of the 8500 GT, and then compare it with a 7600 GS or a 7300 GT.
Likewise for the 8600 GT (not GTS), versus the old 7600 GT and 6600 GT.
Compiled the die sizes of what we got so far:
Just from looking at that list, RV630 might bring some serious pain on G84 and G86 on RV610.
The images were sufficiently detailed that you could tell they were exactly pin-for-pin compatible?
Remember this?Where did you get the G86 core size ?
I've only seen a photo of the G84 die so far...
If we start to talk about so much in future, then there'll x of y different combinations then. Its better to talk about what we have right now.Even the mere difference between G80 and G84 heavily suggests a future "middle" player.
Remember this?
The PCB's may be similar, but that does that actually tell us the ASIC pinouts are exactly pin-for-pin compatible? Or that they have similar designs / thermal properties?The PCB ones ?
Sure.
Just look at capacitor and resistor placement, etc.
In fact, take a look at these two PCB's
8500GT RV610XT
8400GS RV610PRO
8300GS RV610LE