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[twitch] AMD presents RX470 and RX460 - Page 19

post #181 of 280
AMD Radeon RX 480/RX 470 PCB



http://videocardz.com/61091/amd-radeon-rx-480470-pcb-pictured-up-close
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post #182 of 280
Quote:
Originally Posted by prjindigo View Post

Vega is HBM memory bus *(HBM and HBM2 use same bus) and cannot be "cut down" because the data bus uses more than 80% of the pin interconnects on the chip. You can't "cut down" the HBM system to a 3092 or 2048... they'd have to be built that way to start with. There's a large amount of public ignorance about HBM and memory systems in general in graphics cards. The HBM system is a rigid solution with a buffer system between the ram and the GPU's processing.

...stuff...


I don't think I understand this. How is it that you can't make a cut down (salvaged) Fiji, for instance?

As far as I know, the HBM is not a factor here (as you cut CUs) but even if it is Fiji has 4 HBM bus segments (each 1024 wide) on the gpu die, so if you remove two HBM stack you will have enabled 2x1024 wide bus (and have two idling segments). Additionally, in HBM stack each channel is completely independent of one another, so each DRAM module can be disabled on the go (if needed) and it is supposed to be very flexible in case something happens.
As such I don't see a reason, why you can't make a cut down Fiji (Vega etc.)with enabled either 4096bit wide bus or 2048 wide bus etc.

Or do I need to go back to reading?
Edited by C2H5OH - 6/15/16 at 5:42am
post #183 of 280
Read very carefully.

AMD can fit more than 114% transistors in the same space.
AMD can run 1.6x the transistors for the same power.
AMD has a higher yield ratio on chips.
AMD has a cheaper manufacturing node.
AMD is fully Dx12/Win10 compliant.
AMD costs less.
Edited by prjindigo - 6/15/16 at 6:22am
post #184 of 280
Quote:
Originally Posted by prjindigo View Post

Read very very carefully.

Pascal is not as efficient as Maxwell.
AMD can run 2x as many transistors as Pascal in a watt.
AMD can put 1/7th more transistors on a chip than Pascal.

nVidia will NOT be king of the card on this cycle.

1. First part is rofl-worthy.

2. Second part needs confirmation.

3. Third part is may be true, but then it does not explain why AMD has a 232mm^2 die that is not even close in performance to 3/4th of ~320mm^2 die despite having more transistors per mm.
post #185 of 280
Quote:
Originally Posted by ChevChelios View Post

so its good to be the King tongue.gif

Being the KingSlayer is even better. Even gets hot sisters.
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post #186 of 280
Quote:
Originally Posted by T1A1 View Post

I don't think I understand this. How is it that you can't make a cut down (salvaged) Fiji, for instance?

As far as I know, the HBM is not a factor here (as you cut CUs) but even if it is Fiji has 4 HBM bus segments (each 1024 wide) on the gpu die, so if you remove two HBM stack you will have enabled 2x1024 wide bus (and have two idling segments). Additionally, in HBM stack each channel is completely independent of one another, so each DRAM module can be disabled on the go (if needed) and it is supposed to be very flexible in case something happens.
As such I don't see a reason, why you can't make a cut down Fiji (Vega etc.)with enabled either 4096bit wide bus or 2048 wide bus etc.

Or do I need to go back to reading?

[facepalm] If you cut a bus in half, how many people reciting poetry will now fit on it?
post #187 of 280
Quote:
Originally Posted by jezzer View Post

Being the KingSlayer is even better. Even gets hot sisters.
lol, but only one hand .
post #188 of 280
Quote:
Originally Posted by prjindigo View Post

Read very carefully.

AMD can fit more than 114% transistors in the same space.
AMD can run 1.6x the transistors for the same power.
AMD has a higher yield ratio on chips.
AMD has a cheaper manufacturing node.
AMD is fully Dx12/Win10 compliant.
AMD costs less.
currently AMDs new gen top model only offers the performance that of 2 year old 980 redface.gif
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post #189 of 280
Quote:
Originally Posted by lolfail9001 View Post

1. First part is rofl-worthy.

2. Second part needs confirmation.

3. Third part is may be true, but then it does not explain why AMD has a 232mm^2 die that is not even close in performance to 3/4th of ~320mm^2 die despite having more transistors per mm.

Stock clocks sir. There are rumors of AIB cards having MUCH higher clocks than the reference versions. Possibly up to 30%, maybe more.
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post #190 of 280
Quote:
Originally Posted by ChevChelios View Post


currently AMDs new gen top model only offers the performance that of 2 year old 980 redface.gif

 

and only for $199.you want troll ? Go Wccftech.

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