Interessante que o tal teste que o computerbase.de fez mostra exatamente isso de a 480 nao conseguir ir pra frente em relacao a 470.
https://www.computerbase.de/2016-08/amd-radeon-polaris-architektur-performance/3/
Segundo eles é falta de memory bandwidth.
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Outros pontos:
-antes da Tonga tessellation era um gargalo enorme (dai varios efeitos do gameworks ferrar com as amd)
-a nvidia usa tile based rasterization, o q diminui entre outras coisas justamente uso de banda de memoria e consumo de energia. Nos testes sinteticos as nvidia inclusive atingem resultados acima dos teoricos.
http://www.neogaf.com/forum/showthread.php?t=1256067
"Using tiled regions and buffering the rasterizer data on-die reduces the memory bandwidth for rendering, improving performance and power-efficiency. Consistent with this hypothesis, our testing shows that Nvidia GPUs change the tile size to ensure that the pixel output from rasterization fits within a fixed size on-chip buffer or cache."
Sera q a AMD vai imitar a nvidia na Vega? Pq apesar de ter virado noticia so esse mes, faz tempo q nao é segredo usar isso em desktop:
So vi o do computerbase.de e é lá q o reviwer dá a entender q a placa nao overclockou por conta de algo relacionado ao limite de 5%.
Mas ele nao vai mais longe.
google translate
"is Limited PowerColor Radeon RX 480 Red Devil finally but it is only by the power target, that is, it substantially reduced in the Silent BIOS, as in the OC BIOS. Interestingly, the user can raise the power target under OC only by five percent, so that even then the full clock rarely applied - even higher clock speeds by overclocking are in these games, not possible. Although the Silent BIOS allows a higher 50 percent power target, but ends up with it only at the maximum of OC BIOS."
https://www.computerbase.de/2016-07/powercolor-radeon-rx-480-red-devil-test/2/