08-29-2012, 12:21 PM
Welcome to cracking world. There is no hash know on which Nvidia is faster than AMD, however there are hashes on which the distance on their performance ratio is smaller than compared to others. For example SHA512, since NVidia has better support for native 64 bit instructions than AMD. Also DES, since the memory access works faster. However, in total, they still are behind AMDs performance. The Teslas however are totally worthless for cracking since they are focuses on floating point calculations while in crypto we only do integer calculations.
The best AMD card is the hd7970. When the hd7990 will come out, this one might be better. You should totally not buy any other card if your are using it for professional stuff. Take a look at:
this: http://www.gat3way.eu/est
and this: http://www.golubev.com/gpuest.htm
What the linux and windows thing is about there is no difference in performance. They are both at the same speed, however, there are better overclocking utilities on windows than on linux. If you are not going to overclock it doesnt matter.
Your last question was about the TACC1441, which is a FPGA based system. Yes, FPGAs are cool, especially when it comes to electricity costs, but they are damn unflexible. Advanced attacks like rule based attacks or markov-chains for hybrid-attacks wont work with them. If you are going to crack real-life passwords you will totally use these attack-modes.
HTH
The best AMD card is the hd7970. When the hd7990 will come out, this one might be better. You should totally not buy any other card if your are using it for professional stuff. Take a look at:
this: http://www.gat3way.eu/est
and this: http://www.golubev.com/gpuest.htm
What the linux and windows thing is about there is no difference in performance. They are both at the same speed, however, there are better overclocking utilities on windows than on linux. If you are not going to overclock it doesnt matter.
Your last question was about the TACC1441, which is a FPGA based system. Yes, FPGAs are cool, especially when it comes to electricity costs, but they are damn unflexible. Advanced attacks like rule based attacks or markov-chains for hybrid-attacks wont work with them. If you are going to crack real-life passwords you will totally use these attack-modes.
HTH