Now, this is of course my opinion, but I will list some factors here (and alternatives), that is good and bad of both sides:
A) You buy foreign made equipment for your military weapons.
- You can get access to the better technology off the bat
- In short term, can cost less
- Can make your military equipment more pleasing for foreign purchases
- Now potential enemies will know your weakness with little effort
- Source code and other information from host nation who developed the equipment, can impose sanctions, which prevents you to get further batches of equipment. So spare parts becomes a problem (see India after the Indo-Pakistan war in 65).
- Domestic companies lose out on sales, and then claim bankruptcy, ultimately closing down and jobs lost (which account for a lot of jobs for people).
B) You decide to buy only domestic for your military weapons.
- You get technology that the potential enemies may not know about. Weaknesses not easily known.
- Helps provide money for further R&D to the companies. Ultimately, jobs are saved and new technology can be created.
- If in case of sanctions, you can still develop the tech needed, without the need to re-create.
- You may not get the top of the line Technology compared to other nations
- Development could cost more as more money may be lost due to corruption or constant researching with no real results.
- Limits you on possible customers internationally.
I know Vlad made mention in another thread about how it is important to move on and get equipment from France because Russia's is out of date, and used China as an example. The reason why China is developing weapons (even if they are far crappier in performance compared to most nations who have a strong military complex), is because they have no real other choice. Due to sanctions against them, they where then forced into developing technologies for themselves using the civilian based equipment that was provided for development. Their current equipment sucks, as their industries are still young and are still spending the money and time for research. If Russia gave up in research and development of military technologies, to take the quicker root to buying only foreign, then it limits them as well. Not only does the other nation can then black mail Russia over the military equipment; if there is ever a sanctions against Russia in the form of military sales (which is still going on), then Russia would have to start from scratch in developing military equipment all over again. Now there is a possibility that the companies would do better then they do now (see South Africa during the 70's), or that it may cost more money and time to develop appropriate equipment, that may not meet the standards that they could meet years prior.
There needs to be a mix. France's play in the auto industry did help, like Vlad mentioned. But they are not ruling stake in the companies. Same goes for the optics plant. Because the Ural optics plant produces the Catherine-FC thermals, does not make it that France owns the company. More or less, just gives the ability to built it themselves (of course under a license). Now is this good or not? well, if Russia decided to take what they learned and applied it to further development, then that is called polarizing, or 'copying' technology, and that is one of the reasons why China has military sanctions against them.
You talking about PC bottlenecks yet you left out RAM. Not going to waste time networking more processors.
In the current time, Ram speed is only really effective if the memory controller can work along side of it. Same with the storage capacity. There are articles that show that the difference between 6gb of DDR3 Ram is as effective as 4GB. It all depends on the software (that would explain why software engineering is far more profitable and concentrated, then hardware development).
Also, Vlad, you mention Ailing defense industries, which industries are we speaking of? From what I have learned, companies like Sukhoi and Almaz Antey are probably Russia's most prospering and profiting defense industries. Now, for the other companies, well, some would be in question while others are in trouble.
Like I mentioned before, cut the fat. Let some companies fall apart, it would be a matter of time for companies like Sukhoi to pick up the pieces and start further development.