I've noticed the difficulty going up and not coming down, unlike the price.  By the time my transfer to BTER went thru the price had dropped significantly.

Re-ran benchmark to get this:

result may vary a little since I was using a different pool for my first benchmark and they are down.

EVGA FTW 750 Ti

-m 1 -l T5x24 -i 0 -H 2

195w idle  
254w Default clock  (~264khash)
270w Overclock +39 GPU / +777 Memory (~325 khash)

Scrypt-jane
236w Default clock (~3.1khash)
244w Overclock +81 GPU / +940 Memory (~3.6 khash)


UPDATE - added YAC usage

Christian,

Did your friend's 4314 YAC ever show up at BTER?  My transfer finally showed up after two emails and over 24 hours... I hope it did, that's a lot of YAC to lose.


 Is cryptsy any better?  I've heard bad stuff about them, but mostly for DOGE trading there.

Well, I will give it try tonight or tomorrow morning with the new BIOS on my card, I flashed my 780 Ti so I still have the USB stick around here somewhere. But I want to flash a card when it's not on a riser...

I'll run the tests again with the card in my system later on tonight, it's currently on a riser so it wouldn't be the same. Debating flashing the BIOS on the card... 

69charger, which card do you have that is crashing at 341?

Keep in mind that I was using the -H 1 switch, and my 4.7Ghz overclocked 3930K isn't exactly a power miser   

You have to keep the contacts closed until Windows recognizes it a a drive and you see it appear in explorer. The first time always take a bit longer...

That was the stock EVGA Precision utility that comes with EVGA cards.  I can also use MSI's Afterburner as well with the EVGA cards, both have there advantages/disadvantages.

Yes, with a -H 2 instead of the -H 1 I get ~320 khash with the card on riser, a fair trade off considering when it's in the case it makes my 780Ti temps spike in to the 80's!

I did test scrypt-jane power consumption when I did my earlier testing, sorry I didn't post it..

System idle 183 watts

Hashing at default clock - 294 watts

Overclocked hashing scrypt - 319 watts  (340khash)

Overclocked hashing scrypt-jane:YAC  - 274 watts (~3.5hkash)

sorry didn't test power on default clock for jane.

And yes, i was thinking once some proper bios mods get out there, I think we can get more out of these 750's.


It was this card :
The FTW version with the ACX cooler and 6-pin power

I will try that.. It was  -d 1 -m 1 -l T5x24 -i 0 -H 1

I replaced it back in the system for now to get some power measurements, I will retry with

System idle 183 watts

Hashing at default clock - 294 watts

Overclocked hashing - 319 watts
Speeds were 1371 GPU /3477 Mem - pictured below

It's a 1x to 16x powered riser, this one:




It does run cool though..  Less that 40c while hashing away, measure at top of heatsink.




An yes.. I too am seeing a real delay with BTER deposits as well.

I can also confirm the EVGA FTW 750 Ti http://www.newegg.com/Product/Product.aspx?Item=N82E16814487028

also stops at 100TDP, and it has the 6-pin connector.  It was overclocking nicely when actually in the motherboard, but now that it's on a powered riser, it doesn't seem to overclock nicely anymore.  I can boost the clock and memory but the it has minimal effect on my hashrate, but strangely doesn't crash it either...  Has anyone else seen this before with risers?  I'll try a different one tomorrow, I bought a few different ones from various sources.

I have some risers coming in tomorrow, I'll report back what I find out.

-i 0 -m 1 -l T15x24 for regular scrypt gets me to high 700's. 

Well stock on my card is 1189 base / 1268 boost and upped that by 36.
Memory stock is 5400 and I upped that by 516... And this morning I had it up to 660 or so...

I tested with driver version 332.17, since I've heard there is reduced performance with the latest drivers.


With -C 2 I get  "the 'T' kernel ignores the texture cache argument"




Autotune results with different lookup values


-L 3
Scrypt-jane with -L4 [2014-02-20 06:16:09] GPU #1: 2950.30 hash/s with configuration t20x6
[2014-02-20 06:29:35] GPU #0: using launch configuration t5x16
[2014-02-20 06:29:36] GPU #0: GeForce GTX 750 Ti, 2.98 khash/s
[2014-02-20 06:29:36] Total: 2.98 khash/s
[2014-02-20 06:29:41] GPU #0: GeForce GTX 750 Ti, 3.12 khash/s
[2014-02-20 06:29:41] Total: 3.12 khash/s
[2014-02-20 06:29:46] GPU #0: GeForce GTX 750 Ti, 3.12 khash/s
[2014-02-20 06:29:46] Total: 3.12 khash/s
[2014-02-20 06:29:51] GPU #0: GeForce GTX 750 Ti, 3.12 khash/s

-L 4

[2014-02-20 06:16:09] GPU #0: 2950.30 hash/s with configuration t20x6
[2014-02-20 06:16:09] GPU #0: using launch configuration t20x6
[2014-02-20 06:16:11] GPU #0: GeForce GTX 750 Ti, 2.88 khash/s
[2014-02-20 06:16:11] Total: 2.88 khash/s
[2014-02-20 06:16:16] GPU #0: GeForce GTX 750 Ti, 2.76 khash/s
[2014-02-20 06:16:16] Total: 2.76 khash/s

-L 5
[2014-02-20 06:48:03] GPU #1: using launch configuration t20x7
[2014-02-20 06:48:05] GPU #1: GeForce GTX 750 Ti, 2.26 khash/s
[2014-02-20 06:48:05] Total: 2.26 khash/s
[2014-02-20 06:48:10] GPU #1: GeForce GTX 750 Ti, 2.38 khash/s
[2014-02-20 06:48:58] Total: 2.38 khash/s
[2014-02-20 06:49:03] GPU #1: GeForce GTX 750 Ti, 2.46 khash/s
[2014-02-20 06:49:03] Total: 2.46 khash/s

-L6 ends with cudaminer crashing and this scrolling

[2014-02-20 06:58:35] GPU #0: cudaError 30 (unknown error) calling 'cudaFree(h_V
[thr_id][MAXWARPS[thr_id]]-h_V_extra[thr_id][MAXWARPS[thr_id]])' (D:/Christian/D
ocuments/Visual Studio 2010/Projects/CudaMiner/salsa_kernel.cu line 875)

[2014-02-20 06:58:35] GPU #0: cudaError 30 (unknown error) calling 'cudaMalloc((
void **) &tmp, mem_size)' (D:/Christian/Documents/Visual Studio 2010/Projects/Cu
daMiner/salsa_kernel.cu line 251)

[2014-02-20 06:58:35] GPU #0: cudaError 30 (unknown error) calling 'cudaMalloc((
void **) &tmp, mem_size)' (D:/Christian/Documents/Visual Studio 2010/Projects/Cu
daMiner/salsa_kernel.cu line 252)

[2014-02-20 06:58:35] GPU #0: cudaError 30 (unknown error) calling 'cudaMalloc((
void **) &tmp, mem_size)' (D:/Christian/Documents/Visual Studio 2010/Projects/Cu
daMiner/salsa_kernel.cu line 253)

[2014-02-20 06:58:35] GPU #0: cudaError 30 (unknown error) calling 'cudaMalloc((
void **) &tmp, mem_size)' (D:/Christian/Documents/Visual Studio 2010/Projects/Cu
daMiner/salsa_kernel.cu line 254)

[2014-02-20 06:58:35] GPU #0: cudaError 30 (unknown error) calling 'cudaHostAllo
c((void **) &tmp, state_size, cudaHostAllocDefault)' (D:/Christian/Documents/Vis
ual Studio 2010/Projects/CudaMiner/salsa_kernel.cu line 257)

[2014-02-20 06:58:35] GPU #0: cudaError 30 (unknown error) calling 'cudaHostAllo
c((void **) &tmp, state_size, cudaHostAllocDefault)' (D:/Christian/Documents/Vis
ual Studio 2010/Projects/CudaMiner/salsa_kernel.cu line 258)
...snip...

EDIT: -L 5 test results were after I added back in my GTX 780 Ti back in the system so that it could be used for BF4 during the day since I apparently forgot to save the single card results.

Sure

Intel Core i7-3930K (OC'ed to ~4.7Ghz) Water cooled (H100)
32GB Ram Corsair DDR3-2133
Windows 8 64-bit
Corsair HX1050 power supply

So I picked up a 750 Ti tonight and did some initial testing,  I was able to get the following from my 750 Ti (EVGA GeForce GTX 750 Ti FTW w/ EVGA ACX Cooling) ~$160 USD after rebate.

Scrypt
-l T5x24 -m 1 -H 0 -i 0

328 khash


scrypt-jane:YAC
--algo=scrypt-jane:YAC -l t64x1 -i 0 -m 1 -L 2 -H 1

3.36khash

Scrypt:2048
--algo=scrypt:2048 -i 0 -m 1 -H 1 -l T5x20

164 khash

Keccak
--algo=keccak -i 0 -l K1024x24 -C 2 -H 1 -m 1

80500 khash

I really didn't spend a lot of time with the keccak, as it's getting late here and I have to get up for work tomorrow.  One observations I made was that upping the memory clock really did help the performance, more so that raising the GPU clock.  The tests I did were at GPU +38 and Memory at +516.  The card's temp really didn't get about 57 C either.  I felt that the card still has some more room and I will continue to play around with it tomorrow night.

Glad the settings helped, for reference, I was using this build from here

Firestar,

If you think the executable you built might be suspect, try one of the later ones posted in this thread, this is what I'm able to get with a GTX 680 ~410 khash with -d 0 -H 1 -m 1 -l Y8x32  

The GTX 680 is overclocked to 1345Mhz, and it runs ~71C