-m 0, -C 0 uses up to 1963 MB, while anything with -m 1 (C 1/C 2) uses 1287 MB max. Anything above that crashes.
NVIDIA System Management Interface says that my card is in WDDM mode:
+------------------------------------------------------+
| NVIDIA-SMI 331.93 Driver Version: 331.93 |
|-------------------------------+----------------------+----------------------+
| GPU Name TCC/WDDM | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce GTX 660 WDDM | 0000:02:00.0 N/A | N/A |
| 42% 34C N/A N/A / N/A | 2005MiB / 2047MiB | N/A Default |
+-------------------------------+----------------------+----------------------+
But since the card is a secondary card, and I couldn't even attach a monitor if I wanted to due to my mobo not supporting it with the onboard graphics, there's not much info SMI can gather.
Anyway, is there a custom driver or something that would let me use the card purely for it's computational power without limitations?
And considering the demise in YAC to BTC exchange rates... are there any other profitable scrypt-jane coins that we could mine? If some of you could share some firsthand experience that would be great...
Well not really:
ZcC is in N 13 but it's recovering from a fork for a while now so no exhchanges at the moment (enters N14 on Febr 17);
CPR (Copperbars) is in N 13 as well but I dropped it for some reason, not sure what I didn't like about it... (enters N14 on Febr 21);
APC (Applecoin) has potential, but it's only in N 11. Looking at one of the pools, the average hashrate per worker is around 294 kH/s. My GTX 660 gets 59 kH/s and ~30-40% CPU utilization (with -H 2).
Also, there's a bunch of coins between N 4 and N 7 but those are pretty much hit and miss. (cachecoin, microcoin, internetcoin, qqcoin, velocitycoin, freecoin, etc)
Basically, I'm silently waiting for the Keccak optimization so that I can test the !%+ out of low N coins because I'm starting to dislike YAC a lot and there's no way scrypt is more profitable with low-mid range cards like a GTX 660 (260 scrypt khashes vs 3.4 SJ N14 khashes).