PCTuning fórum

GCN 1.0 - Southern Islands

GCN 1.1 - Sea Islands

GCN 1.2 - Volcanic Islands

GCN 1.3 - Fiji/Tonga

GCN 2.0 - Arctic Islands

GCN 1.0 = GCN 1.0
GCN 2.0 = GCN 1.1
GCN 3.0 = GCN 1.2/1.3
GCN 4.0 = GCN 2.0 (GCN 1.4)

del42sa píše:Takže AMD opět postavila značení jednotlivých generací naruby a namísto GCN 2.0 tady máme hned GCN 4.0

Polaris: Codename for the 4th generation GCN
Arctic Islands: Family of GPUs based on Polaris
Greenland: High-end(?) GPU within Arctic Islands

del42sa píše:...Na druhou stranu jde o nejvýraznější překopání celé GCN architektury a nové jméno se bude určitě lépe vyjímat v materiálech a prezentacích ( jinak by někteří NV fans mohli namítat, že AMD nic nového nepředvedla a jen pořád vylepšuje "starou architekturu" )

The purpose of this demonstration for RTG was threefold: to showcase that a Polaris GPU was up and running, that the small Polaris GPU in question could offer performance comparable to GTX 950, and finally to show off the energy efficiency advantage of the small Polaris GPU over current 28nm GPUs. To that end RTG also plugged each system into a power meter to measure the total system power at the wall. In the live press demonstration we saw the Polaris system average 88.1W while the GTX 950 system averaged 150W. Meanwhile in RTG’s own official lab tests (and used in the slide above) they measured 86W and 140W respectively...

...First and foremost, Polaris will encompass both GDDR5 and High Bandwidth Memory (HBM) products. Where the line will be drawn has not been disclosed, but keeping in mind that HBM is still a newer technology, it’s reasonable to expect that we’ll only see HBM on higher-end parts. Meanwhile the rest of the Polaris lineup will continue to use GDDR5, something that is not surprising given the lesser bandwidth needs of lower-end parts and the greater cost sensitivity.

Meanwhile RTG has also disclosed that the first Polaris parts are GDDR5 based. Going hand-in-hand with what I mentioned earlier about RTG’s Polaris demonstration, it seems likely that this means we’ll see the lower-end Polaris parts first, with high-end parts to follow.

havli píše:
//edit - tvrdilo se, ze AMD vyda letos jen dve 14nm GPU. Pokud prvni z nich bude lowend na urovni GTX 950, tak nejspis to druhe bude mnohem rychlejsi a mezi nima velka dira. Co ji zaplni? Snad ne opet preznacene 28nm GPU...

PET5 píše:Docela dobře si dovedu představit, že by AMD letos vydalo pouze dvě základní grafická jádra, jedno velké a výkonné do highendu a to druhé menší a slabší se zaměřením na mainstream.

AMD’s Joe Macri stated, during our talks, that they expect this FinFET technology will bring a 50-60% power reduction at the same performance level OR a 25-30% performance increase at the same power.