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[WCCF] AMD Pirate Islands : R9 300 Series Roadmap Leak - Page 13

post #121 of 195
Quote:
Originally Posted by Rayleyne View Post

it has a 512Bit interface, I'm not seeing the issue with 96 Rops
Lets say Bermuda is GCN1.2/2.

6 Shader Engines = 12 L2s and 24 RBEs

2 RBEs and 1 L2 must connect to one memory controller.

12 * 64 = 768 bits
24 * 4 = 96 ROPs

Lets say Fiji is GCN1.2/2.

72 ROPs / 8 = 9 L2s * 64 = 576 bits

Lets say Treasure is GCN1.2/2.

48 ROPs / 8 = 6 L2s * 64 = 384 bits.
/////
Tahiti and Kaveri so far are the only exceptions to the rule.

Tahiti having 384-bit when the ruleset says it should be 256-bit.
Kaveri having 256-bit when the ruleset says it should be 64-bit.
Edited by Seronx - 4/12/14 at 1:17am
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post #122 of 195
Quote:
Originally Posted by ebduncan View Post

Ummm Kaveri uses GCN 2.0, it has true audio support.

Quote:
Originally Posted by Usario View Post

You mean GCN 1.1. There is no GCN 2.0 as of yet.
Non confirmed naming made up by either anand or tpu.

You guys are right about true audio dsps what I don't get is why it works with older cards in hybrid cf clearly the cores are still ol or have been barely updated.
post #123 of 195
Quote:
Originally Posted by Seronx View Post

Lets say Bermuda is GCN1.2/2.

6 Shader Engines = 12 L2s and 24 RBEs

2 RBEs and 1 L2 must connect to one memory controller.

12 * 64 = 768 bits
24 * 4 = 96 ROPs

Lets say Fiji is GCN1.2/2.

72 ROPs / 8 = 9 L2s * 64 = 576 bits

Lets say Treasure is GCN1.2/2.

48 ROPs / 8 = 6 L2s * 64 = 384 bits.
/////
Tahiti and Kaveri so far are the only exceptions to the rule.

Tahiti having 384-bit when the ruleset says it should be 256-bit.
Kaveri having 256-bit when the ruleset says it should be 64-bit.

and nothing says it' cant be an exception to the same rule, AMD has done it before just as you have said.
Edited by Rayleyne - 4/12/14 at 2:52am
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post #124 of 195
This is looking GOOD, i believe partially this numbers since the same was when we got the leak about the 512bit and 4GB of memmory on the 290/290x and those rumors where true.

Also the card back then was rumored to be faster than and titan and half the price which no one believe and AMD made it biggrin.gif
post #125 of 195
Quote:
Originally Posted by Rayleyne View Post

it has a 512Bit interface, I'm not seeing the issue with 96 Rops

512 is not divisible by 96.

In the other unusual situations that Seronx mentioned, it at least made sense. 384 is divisible by 32 and 256 is divisible by 8.
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post #126 of 195
Quote:
Originally Posted by Usario View Post

512 is not divisible by 96.

In the other unusual situations that Seronx mentioned, it at least made sense. 384 is divisible by 32 and 256 is divisible by 8.
512*96^-1 or 512/96 or 5 1/3 or 16/3 look I divided by 96 and got an exact answer. now it indeed isn't a hwole number but it is divisible.
post #127 of 195
I know that this is probably fabricated. However. What I would like to know. When are these due to come out? I was planning on maybe upgrading to a 280X or two soon. However I might just keep my 6850's for one more gen until these come out....
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post #128 of 195
Quote:
Originally Posted by maarten12100 View Post

512*96^-1 or 512/96 or 5 1/3 or 16/3 look I divided by 96 and got an exact answer. now it indeed isn't a hwole number but it is divisible.

World English Dictionary
divisible (dɪˈvɪzəb ə l)

— adj
capable of being divided, usually with no remainder
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post #129 of 195
I have no idea why you guys are eating this up like it's real.

The terminology is not even correct and it looks like it was made in a spreadsheet program. I could fake something better than that TBH
post #130 of 195
Quote:
Originally Posted by Usario View Post

World English Dictionary
divisible (dɪˈvɪzəb ə l)

— adj
capable of being divided, usually with no remainder
Remainder...
Yeah well as I set it is not a whole number but it is infact an exact number. Just that it isn't a whole number has nothing to do with it being divisible or not. And I do understand what you were getting at but I was just correcting nothing more nothing less.

Trust me on this half my study is math.
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