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Thread: Speed Problem with R9 295X2
Post: RE: Speed Problem with R9 295X2
| Power supply is irrelevant. The 295X2 requires nearly 550W when using oclHashcat, but it is only a 500W card. So the firmware will throttle the GPUs to keep the power draw under 500W. This is what AMD... |
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epixoip |
General Help
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20,657 |
01-28-2015, 11:38 PM |
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Thread: Speed Problem with R9 295X2
Post: RE: Speed Problem with R9 295X2
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epixoip |
General Help
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13 |
20,657 |
01-28-2015, 11:58 PM |
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Thread: Speed Problem with R9 295X2
Post: RE: Speed Problem with R9 295X2
| Benchmark only runs for a few seconds, not usually enough time for it to throttle.
It's also possible that you were not giving your GPUs enough work to do in your first screenshot. |
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epixoip |
General Help
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13 |
20,657 |
01-29-2015, 01:04 AM |
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Thread: Speed Problem with R9 295X2
Post: RE: Speed Problem with R9 295X2
| No. Again, power supply is irrelevant. The card will do everything it can to keep power consumption under 500W, and that means throttling the GPUs. |
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epixoip |
General Help
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13 |
20,657 |
01-29-2015, 11:05 PM |
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Thread: Speed on Radeon HD6970
Post: RE: Speed on Radeon HD6970
| correct, you can essentially cut atom's 6990 speeds in half. it will be a little bit faster due to higher clocks, but that will give you a good estimate.
I believe d3ad0ne may also have some 6970 ben... |
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epixoip |
Hardware
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8 |
19,271 |
10-12-2012, 01:49 AM |
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Thread: Speed on Radeon HD6970
Post: RE: Speed on Radeon HD6970
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blandyuk Wrote: (10-12-2012, 10:53 AM)
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I know 7970s are faster do to memory speeds but I found the 6000 series to be a bit power hungry. See below:
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7970s are faster due to higher clock rates a... |
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epixoip |
Hardware
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8 |
19,271 |
10-13-2012, 01:53 AM |
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Thread: Speed of Hascat vs Pyrit
Post: RE: Speed of Hascat vs Pyrit
| correct, it means that plus is over 2x faster than pyrit with its precomputed tables. |
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epixoip |
General Help
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10 |
49,692 |
11-07-2012, 09:52 PM |
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Thread: Speed impact of larger hash lists
Post: RE: Speed impact of larger hash lists
| md5crypt is salted, so each password candidate has to be re-hashed with each unique salt. |
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epixoip |
hashcat
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2 |
3,318 |
01-21-2017, 12:24 AM |
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Thread: Speed drop with hashfile parameter
Post: RE: Speed drop with hashfile parameter
| Yes, it is normal to see ~50% speed reduction for multi-hash vs single hash. |
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epixoip |
hashcat
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2 |
2,933 |
02-07-2017, 02:46 AM |
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Thread: Speed drop after playing game (Crysis3)
Post: RE: Speed drop after playing game (Crysis3)
| is this a serious question? |
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epixoip |
Very old oclHashcat-plus Support
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20 |
29,275 |
02-25-2013, 02:52 PM |
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Thread: Speed drop after playing game (Crysis3)
Post: RE: Speed drop after playing game (Crysis3)
| you're using your graphics card for password cracking, while also playing a game that makes heavy use of your graphics card, and you're wondering why the speed drops? |
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epixoip |
Very old oclHashcat-plus Support
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20 |
29,275 |
02-25-2013, 03:26 PM |
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Thread: Speed drop after playing game (Crysis3)
Post: RE: Speed drop after playing game (Crysis3)
| why are you using --gpu-loops 128? 128 is the default, you do not need to manually specify that. and you will not get full acceleration using the default of 128, you need to use 4096 for full accelera... |
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epixoip |
Very old oclHashcat-plus Support
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20 |
29,275 |
02-26-2013, 01:18 AM |
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Thread: Speed drop after playing game (Crysis3)
Post: RE: Speed drop after playing game (Crysis3)
| this is the price you pay for free porn. |
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epixoip |
Very old oclHashcat-plus Support
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20 |
29,275 |
02-26-2013, 04:32 PM |
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Thread: Speed difference between 0.08 and 0.09
Post: RE: Speed difference between 0.08 and 0.09
| hybrid attack would be much faster than using the rules engine for that, and it scales better. |
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epixoip |
Very old oclHashcat-plus Support
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3 |
7,865 |
10-14-2012, 03:34 AM |
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Thread: speed and length
Post: RE: speed and length
| The rate is likely falling because the GPU is throttling itself. The 295X has a very low Powertune target temperature -- it has a hard-coded maximum value of only 75C (compared to the 290X, which has ... |
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epixoip |
Old oclHashcat Support
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12 |
15,240 |
01-18-2015, 09:04 PM |
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Thread: speed and length
Post: RE: speed and length
| Powertune doesn't just throttle for heat, it also throttles for power consumption (hence its name.) You are aggressively overclocking, so you are surely exceeding the amount of power the card is willi... |
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epixoip |
Old oclHashcat Support
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12 |
15,240 |
01-18-2015, 10:09 PM |
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Thread: speed and length
Post: RE: speed and length
| I most certainly am not envious of you. Nor am I envious of your inability to read these forums where we have repeatedly advised users not to buy the 295X. It might be good a good card for pushing pix... |
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epixoip |
Old oclHashcat Support
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12 |
15,240 |
01-18-2015, 10:25 PM |
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Thread: speed and length
Post: RE: speed and length
| No, it absolutely is not the best card to buy for oclHashcat. You are sorely mistaken. 2x 290X are cheaper, faster, and behave much more civilly. GTX 980 however is the all-around best card to buy.
... |
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epixoip |
Old oclHashcat Support
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12 |
15,240 |
01-18-2015, 10:43 PM |
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Thread: speed and length
Post: RE: speed and length
| NBZ hasn't been around for ~ 6 months. But IIRC what he ended up doing was upgrading the radiator and adding two larger fans to the GPU. Then he had to set the clock to 1000 Mhz and Powertune to 0% or... |
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epixoip |
Old oclHashcat Support
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12 |
15,240 |
01-18-2015, 11:01 PM |
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Thread: speed and length
Post: RE: speed and length
| Again, it's not just about temperature. It's also about how much power the card is drawing. That's why it's called Powertune. The firmware on the GPU will not allow the card to draw more watts than it... |
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epixoip |
Old oclHashcat Support
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12 |
15,240 |
01-18-2015, 11:43 PM |
