AMD Radeon R9 295 X2 on april rel.

[NBZ]

Ok, The current version 1.20 of oclhashcat has some issues with 295x and powertune, you will need to use it without powertune. It will be fixed in a new beta.

As for the bench mark, it is (as it should be) exactly identical to 2* 290x

However, in multi GPU machine, the card may throttle when it gets too hot around 72C i think in theory, this is design by AMD.

In my case, i don't mind it, i went to this card for the cooling aspect.
I am running 5 GPU total so the card gets a bit warm from other cards.
However, i think the current driver isn't as good as it should. In real life, it seems to throttle around 68C, which is not good.

If you plan to run that card alone, you should have no problem.
However, to go full speed you will need powertune in the fixed version.

Example speed with my 5 gpu (3 * 290x + 1 295x) :
#4 and #5 are from 295x2

Hashtype: MD4

Speed.GPU.#1.: 25112.7 MH/s
Speed.GPU.#2.: 25056.8 MH/s
Speed.GPU.#3.: 25057.9 MH/s
Speed.GPU.#4.: 25089.7 MH/s
Speed.GPU.#5.: 25055.0 MH/s
Speed.GPU.#*.: 125.4 GH/s

Hashtype: MD5

Speed.GPU.#1.: 12628.2 MH/s
Speed.GPU.#2.: 12628.0 MH/s
Speed.GPU.#3.: 12628.2 MH/s
Speed.GPU.#4.: 12623.8 MH/s
Speed.GPU.#5.: 12628.9 MH/s
Speed.GPU.#*.: 63137.2 MH/s


Hashtype: WPA/WPA2:

Speed.GPU.#1...: 203.3 kH/s
Speed.GPU.#2...: 203.3 kH/s
Speed.GPU.#3...: 203.3 kH/s
Speed.GPU.#4...: 201.0 kH/s
Speed.GPU.#5...: 203.3 kH/s
Speed.GPU.#*...: 1014.1 kH/s

So exactly same as it should be, Two 290x