GPU-Accelerated Microsoft Office 2007-2010 Password Recovery

Compared with their counterparts processor graphics processing unit (GPU) is significantly (up to 60 times!) Accelerate the process of Microsoft Office 2007-2010 password oporavak.Razlika is stunning. Where's the trick?

In two minds:. Selecting the right helper

Actually there is no magic, and you'll see that it is a very primitive example.

Imagine that you are responsible for your kid's wedding and you need to make hundreds of phone calls Call family and friends. Such an important mission will be easier to achieve so if you've had a few associates.

CPU Int. The company offers you four of his most effective employees speak any language known to man, a GPU Ltd is ready to help you with 800 staff members can speak one language only. And both companies sell their services at almost the same price.

and that you think is going to be the first phone this whole lot of people? Ltd. GPU guys have to make only one call each and every member of the CPU Int. is that the 250 telephone poziva.Odgovor seems pretty obvious. But let's not rush it. It's not that simple.

If your child is loved and GPU guys share the same language then it's fine, and they will win for sure. But what if the bride and groom speak different languages? That would definitely raise the chances of CPU Int. They are polyglots, remember?

This is just an example, but it is based on real events.

Modern CPUs have 4 cores. They can process data to work on multiple tasks in parallel (as they do "phone calls" in 4 different languages ​​at the same time). While graphics cards have up to 800 data flow processors, but they only work together at one and the same task, or "call" 800 people who speak one language. It turns out that when a task is divided into many homotypic one graphics card outpacing CPU.

Office 2007/2010 password recovery is just the right task to be solved with GPU acceleration!

Office 2007/2010 passwords

In his latest edition of Microsoft Office developers have modified the file format. Protection algorithms have also been changed. Without going deeply into the details of the increased 128-bit key, a shift from RC4 to AES or change functions MD5 and SHA1 with an increased number of iterations, there is one thing we can say with certainty: there was a slowdown in the processor-based password recovery.

For example, the leader of a performance test of Accent OFFICE Password Recovery (Basic Edition) that run on Intel Centrino Duo 2GHz account 1.7 million for the second version of Office 2000 and only 370 (!) For Office 2007 document.

Modern processors are not prepared for the amount of homotypic data being calculated, while searching for Office 10/07 password. While graphics cards are ready to submit! Amount of data is more than enough, so that all card processors can be assigned to the task.

, however not all graphics cards can use GPU-based recovery zaporke.Kartica must support the function of GPGPU (general purpose GPUs). The most popular ones are the NVIDIA CUDA and ATI's Stream.

leading technology

It all started at the beginning of the 2000s, when the properties of graphics cards began to grow exponentially. Then came the motherboards support more than one card in your computer. This is an enhanced computer features a PC to put it side by side with the first supercomputer. It would be strange to use it only for games, right?

Another important step was the public release of the NVIDIA CUDA in 2007.Tehnologija proved to be very friendly and perfectly dokumentirano.Nešto later the same year, AMD / ATI - Nvidia's biggest competitor - presented a very complicated technology ATI Stream. What followed was like an avalanche.

new tools and additional documentation have been warmly welcomed by developers from around the world. New software appeared, the older has improved. The implementation of the graphics card complex calculations, edit video files, exchange quoating or GPU-based password recovery affect productivity and made it soar which found universal recognition among the users.
Who is the best anyway?

Fast GPU-based password recovery for Office 2007/2010 is the best way to recover a lost password. It is true, but what kind of graphics card is the fastest of all? To find that we have measured their speed at some recovering passwords to open Microsoft Excel 2007 file. Here's what we get:

Name Price Number of vessels (approximately) Speed ​​(passwords per minute)

Atom 330 2 $ 80,232

AMD Phenom X4 9550 4 $ 150,768

Intel Core 2 Q6600 $ 4,400 1.100

NVIDIA GTS250 $ 128,150 3250

NVIDIA GTX 260 $ 216 300 3400

NVIDIA GTX295 $ 240,600 8500

ATI HD4770 $ 640 120 6800

ATI HD5770 $ 800,170 13200

ATI HD5970 3200 650 $ 44,000 

Although NVIDIA has nothing to offer the absolute leaders of the races are ATI products. They are also the top price rating that is uncompromisingly ATI HD5970 with unbeatable.

so it is clear now that the secret of GPU accelerated password recovery consists of the ATI graphics card and software that can cause all of its features.