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fabry180384
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credo a gennaio!
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The Starchild
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Purtroppo non si sa nulla di preciso.
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fabry180384
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oggi mi è capitato un articolo davvero interessante che a quanto pare puoi essere considerata un ottima notizia!
AMD RV770 has 900 stream processors
The Finnish member largon of the English-speaking Xtremesystems-forum has made an interesting discovery by having a look at the RV770-GPU. To be exact he looked at the SIMD-cores of the chip on a schemata-subscription and came to a surprising conclusion.
On the RV770 there are 180 instead of 160 vec5-units synonymic with 900 instead of 800 streamprocessors. But one by one:
The current picture shows the SIMD-cores of the RV770. The row by row to ten numbered figures correspond to the SIMD-units of AMD-GPU. The column by column to nine numbered figures the shader clusters per SIMD, in which two shader units are located. Consequently, it has 18 shader cores per SIMD-unit.
The product of both numbers is the count of vec5-units, so 180 (10*18). Because every vec5-unit – as the name says – has five different scalar units (RGBA, red green, blue, alpha stock, special function) you can speak of 900 stream processors.
But what does our schemata-subscription tell us? In reality the RV770 has only 800 stream processors from ten SIMD-units and 16 instead of 18 shader cores per SIMD.
We can speculate that AMD could have obstructed two extra shader cores per SIMD only to increase the yieldrate of the chip. Are one or two shader cores per SIMD-unit broken the chip must not be directly trashed.
Underhand you could also wonder if AMD could activate the two disabled shader units per SIMD in a prospective video card. 900 instead of 800 streamprocessors would be synonymic with a 12.5 per cent higher shader performance on the paper.
But this is more than improbable: The shader cores have to be always a multiple of four because quads – groups of four pixels – must be calculated. The extra shaders could be used as coprocessors to calculate GPGPU-applications.
An interesting detail, that finds first six months after the official presentation the why outwards.
in parole povere le nostre 4800 hano ben 900 stream processor di cui 100 disattivati?
venisssero attivati in future schede.......
IL LINK:
http://en.hardspell.com/doc/showcont.asp?news_id=4695
AMD RV770 has 900 stream processors
The Finnish member largon of the English-speaking Xtremesystems-forum has made an interesting discovery by having a look at the RV770-GPU. To be exact he looked at the SIMD-cores of the chip on a schemata-subscription and came to a surprising conclusion.
On the RV770 there are 180 instead of 160 vec5-units synonymic with 900 instead of 800 streamprocessors. But one by one:
The current picture shows the SIMD-cores of the RV770. The row by row to ten numbered figures correspond to the SIMD-units of AMD-GPU. The column by column to nine numbered figures the shader clusters per SIMD, in which two shader units are located. Consequently, it has 18 shader cores per SIMD-unit.
The product of both numbers is the count of vec5-units, so 180 (10*18). Because every vec5-unit – as the name says – has five different scalar units (RGBA, red green, blue, alpha stock, special function) you can speak of 900 stream processors.
But what does our schemata-subscription tell us? In reality the RV770 has only 800 stream processors from ten SIMD-units and 16 instead of 18 shader cores per SIMD.
We can speculate that AMD could have obstructed two extra shader cores per SIMD only to increase the yieldrate of the chip. Are one or two shader cores per SIMD-unit broken the chip must not be directly trashed.
Underhand you could also wonder if AMD could activate the two disabled shader units per SIMD in a prospective video card. 900 instead of 800 streamprocessors would be synonymic with a 12.5 per cent higher shader performance on the paper.
But this is more than improbable: The shader cores have to be always a multiple of four because quads – groups of four pixels – must be calculated. The extra shaders could be used as coprocessors to calculate GPGPU-applications.
An interesting detail, that finds first six months after the official presentation the why outwards.
in parole povere le nostre 4800 hano ben 900 stream processor di cui 100 disattivati?
venisssero attivati in future schede.......
IL LINK:
http://en.hardspell.com/doc/showcont.asp?news_id=4695
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fabry180384
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HARDSPELL.COM-AMD RV770 has 900 stream processors
è infatti una notizia molto interessante perchè se ati davvero ha gia messo 100 strem processor in piu sulle 4800 vuol dire che avrà una marcia in più nello sviluppo delle rv775xt o meglio serie 5800 a 40nm!
potessi attivare quei 200 strem processor che ho in piu nella 4870x2....:doh:
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Ma zio canederlo, è sicura la fonte?
Io ATi la denuncio se è così...ma come si fa?
Spero sia possibile abilitarli tramite aggiornamento del BIOS, sennò prendo a calci il PC
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fabry180384
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The shader cores have to be always a multiple of four because quads – groups of four pixels – must be calculated. The extra shaders could be used as coprocessors to calculate GPGPU-applications= X LA FUTURA FISICA??
cmq hai ragione ati crea hardware pazzesco e poi nn ha ancora attivato il famoso sideport sulla 48702 e ora scopro questi famigerati 100 stream processor in piu!!
forse serviranno per la fisica(HAVOC) che anche ati vorrà mettere sulle proprie schede!
teraflops di potenza e n poterli sfruttare anche solo con driver all altezza a quest'ora la 4800 sputava in faccia anche alla gtx295 e invece.....
The Starchild
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E' improbabile... se veramente ha imboscato altri 100 stream disattivandoli, a mio giudizio, ha fatto male.
Doveva usarli subito per dare una bella mazzata alla concorrente.
Doveva usarli subito per dare una bella mazzata alla concorrente.
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fabry180384
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nn è possibile magari fosse cosi facile prendere stream processor qua e la in caso di rottura.....vatti a vedere bene l architettura simd....
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Quoto, magari rilasciassero un BIOS apposito...ma è sperare troppo...
halduemilauno
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