FUD: AMD Tonga GPU comes as Radeon R9 285

[3DVagabond]

Easier said than done... the Newegg user reviews usually prove pretty reliable... the 290 runs pretty hot so it seems you can usually have cool or quiet - not both. 😉

To each his own as far as reliable sources, but try the Sapphire Tri-X or Powercolor PCS+ if you want the best coolers.

 

[Abwx]

Pro version of this chip/card is coming first...

http://www.hardware.fr/news/13842/amd-devoile-gpu-milieu-gamme-tonga.html

 

[lopri]

Looking at that French site's numbers this chip looks like 2/3-ish of Hawaii, kind of like what Pitcairn is to Tahiti. There are obvious tweaks to avoid 512-bit there and on paper Tahiti has more of everything except for the new cores that are capable of 4 triangles per cycle instead of 2. It will be interesting to see how that difference on paper will translate in games.

Oland : GCN 1.0, 6 CU, 1 triangle par cycle, 8 ROP, L2 256 Ko, 128 bits
Cape Verde : GCN 1.0, 10 CU, 1 triangle par cycle, 16 ROP, L2 512 Ko, 128 bits
Bonaire : GCN 1.1, 14 CU, 2 triangles par cycle, 16 ROP, L2 512 Ko, 128 bits
Pitcairn : GCN 1.0, 20 CU, 2 triangles par cycle, 32 ROP, L2 512 Ko, 256 bits
Tonga : GCN 1.1, 28 ou 32 CU, 4 triangles par cycle, 32 ROP, L2 512 ou 1024 Ko, 256 bits
Tahiti : GCN 1.0, 32 CU, 2 triangles par cycle, 32 ROP, L2 768 Ko, 384 bits
Hawaii : GCN 1.1, 44 CU, 4 triangles par cycle, 64 ROP, L2 1024 Ko, 512 bits

What is curious is that Bonaire has lesser cores than Tonga and Hawaii. Has that been established before? If that is so why don't they call Hawaii and Tonga GCN 1.2 or something?

 

[champion-7891]

Looking at that French site's numbers this chip looks like 2/3-ish of Hawaii, kind of like what Pitcairn is to Tahiti. There are obvious tweaks to avoid 512-bit there and on paper Tahiti has more of everything except for the new cores that are capable of 4 triangles per cycle instead of 2. It will be interesting to see how that difference on paper will translate in games.

What is curious is that Bonaire has lesser cores than Tonga and Hawaii. Has that been established before? If that is so why don't they call Hawaii and Tonga GCN 1.2 or something?

it basically looks 2X bonnaire and judging by the core numbers should perform about or better than the 280/7950. A lower powered, smaller die part for 200$?

 

[Abwx]

What is curious is that Bonaire has lesser cores than Tonga and Hawaii. Has that been established before? If that is so why don't they call Hawaii and Tonga GCN 1.2 or something?

Dont know but it s a quite advanced chip according to the infos released on this site since it s part of the few GPUs that fully support Freesync.

Radeon R9 290X, 290, R7 260X et 260

APU Kaveri, Kabini, Temash, Beema et Mullins

http://www.hardware.fr/news/13841/freesync-limite-gcn-1-0.html

 

[AtenRa]

Looking at that French site's numbers this chip looks like 2/3-ish of Hawaii, kind of like what Pitcairn is to Tahiti. There are obvious tweaks to avoid 512-bit there and on paper Tahiti has more of everything except for the new cores that are capable of 4 triangles per cycle instead of 2. It will be interesting to see how that difference on paper will translate in games.

What is curious is that Bonaire has lesser cores than Tonga and Hawaii. Has that been established before? If that is so why don't they call Hawaii and Tonga GCN 1.2 or something?

Bonaire and Hawaii are GCN 1.1 and we expect Tonga to be the same.

Also I believe it should be smaller than 300mm^2.

 

[Noctifer616]

Bonaire and Hawaii are GCN 1.1 and we expect Tonga to be the same.

http://s2014.siggraph.org/attendees/exhibitor-tech-talks

The talks are about GCN 2 and the new FirePro cards announced today. One of the cards, the W7100 is coming in Q4 and will probably have a Tonga core.

 

[piesquared]

So does Tonga come with Hawaii's 1/2 DP and advanced memory controller? Hawaii's 512-bit controller is very good and efficient in an area smaller than the previous 384-bit. It could be the perf/watt king.

 

[3DVagabond]

So does Tonga come with Hawaii's 1/2 DP and advanced memory controller? Hawaii's 512-bit controller is very good and efficient in an area smaller than the previous 384-bit. It could be the perf/watt king.

Hawaii uses a 512bit version of Pitcairn memory controller. So, hopefully this will see some improvement over that. I really really doubt it's going to be a DP compute monster like Hawaii is though. Although, being GCN it should still be quite good at other compute functions.