Parece que el RX 490Pro seria un producto exclusivo para Macintosh.
Y ahora hay un benchmark D3D12 para la RX 490 estandar sobre el juego Ashes of the Singularity [AOTS]. Con los datos del benchmark, los de wccftech.com especulan que podria ser un GPU VEGA y no un dual GPU POLARIS.
Ademas,. comparando con su base de datos, los resultados obtenidos del bech lo acercan al rendimiento de una GTX 1080
http://wccftech.com/amd-radeon-rx-490-b ... mance-dx12Hassan Mujtaba, wccftech.com escribió:
AMD 687F:C1 Graphics Product Is On Par With GeForce GTX 1080 – Possibly Vega GPU Based.
Now there have been some rumors that this card could be a dual chip product but from the benchmarks, it seems like we are only looking at a single-chip solution. The card is listed with the device ID 687F:C1. AMD GPU database doesn’t list any such card and was the same case for the RX 480 prior to its release. So this could be an entirely new GPU which we haven’t seen or heard of before. Now this doesn’t mean that there won’t be any dual chip card. The possibility for that product also remain but I personally don’t think AMD will want to develop a dual chip solution based on Polaris 10. Their dual chip products are based only on high-end chips such as Fiji (Radeon Pro Duo) and Hawaii (Radeon R9 295X2).
[..]
The benchmarks clearly show the card performing next to a high-end GTX 1080. Currently, there’s no GPU from AMD that comes this close in the Polaris Radeon 400 series lineup. Also to note is that the drivers may not be ready yet which will result in even higher performance at launch. This card really looks to be top-notch and built for enthusiasts and we can’t wait to learn more about it.
¿La Posible RX 485 y un POLARIS 12?Incluso, tambien dentro de los rumores, en los ultimos controladores de RTG para sistemas Macintosh, aparece referencia a tres nuevas tarjetas de video. Donde desde videocardz especulan que una podria ser la esperada RX 485, e incluso la mencion de un posible ¡GPU POLARIS 12!
Igual opodria tratarse simplemente de un nuevo ID para las versiones RX 480 y 490 dedicadas a la Mac.
http://videocardz.com/64622/amd-polaris ... os-drivershttps://www.tonymacx86.com/threads/maco ... st-1386344WhyCry, videocardz.com escribió:AMD Polaris 10 XT2 and Polaris 12 spotted in macOS drivers
According to the latest leak, Polaris architecture has not said the last word yet, as we expect two more graphics processor based on this architecture.
AMD Polaris 10 XT2 and Polaris 12
This is the output from a HEX viewer. The file is a controller for MacOS Sierra driver, which supposedly contains information about new, yet unreleased, processors. The file revealed that AMD is working on revised Polaris 10 chip, supposedly named Polaris 10 XT2 and also Polaris12, which was not a subject of any rumor so far. One of those could be the mysterious 687F device we saw just a few days ago.
As you can see Polaris 11, Polaris 10, Polaris 12, Polaris 10 XT2 are all listed separately. It means that each one of those is different in some way. What’s also interesting is the appearance of Vega 10, which suggest that Vega10 is being worked on simultaneously.
One of the theories that I have is that AMD would use Vega 10 as a new high-end part that would replace Radeon Fury series, whereas reworked, redesigned chips aka Polaris 12 and Polaris 10 XT2 would replace Polaris 11 and 10 respectively. This means AMD would have a brand new lineup for Radeon 500 series.
Another possibility is that both of those Polaris chips are exclusive to Apple devices, but that seems unlikely.