Russia wants to be independent from the US for computers, because they fear (rightfully) American chips to be bugged.
Having slow, expensive chips made in Russia is probably more interesting to certain agencies than fast and cheap American chips - or relying on typewriters :)
I don't know if Russia has the industry to mass produce it, but surely it has the skilled people to design it, and it may probably use foreign fabs for the remaining steps if necessary.
As for the software, with an established ISA, they may quickly leverage exising open source solutions. Of course, Windows and OSX support will be a problem (given that they are the major desktop players).
Politic or not, they know it's doable.
- If it proves to be actually good, they might actually sell some of those chips, too (it's developing their local high-tech sector. Even a tiny piece of the market is better than none at all, especially if their own agencies kickstart it).
- It highers the cost for foreign intelligence to write software for that platform: their arsenal of viruses and trojans are completely useless. Unless you acquire detailed specifications of the platform, find some test chips, develop new software and finally infect your target... Takes time and money.
- They get some (positive, for once) international press.
- They can parade how awesome mother Russia is to their own nationalist ego.
China is better off taking over Taiwan, who have much of both.
That's the time frame it takes to setup & go to market with a mobile processor company in silicon valley.
As for trade stats: the US SHOE industry is an order of magnitude larger than that - $20 billion annually {http://statisticbrain.com/footwear-industry-statistics/}. 1.1 billion seems like a big number until you consider: a chip manufacturing plant costs more than that.
First, just because a multi-billion dollar market exists for a product, that doesn't mean that there aren't highly profitable, multi-million dollar markets that exist in the same industry. This is especially true when the "market" is impacted by things things like trade policy asymmetry, sanctions, embargoes and national policy.
Second, there's no reason to think this "market" is motivated solely or even primarily by revenue/profit in the classic sense. If you add the "benefit" of poking the West in the eye, and the national pride angle, the alternative market decision isn't "I could make money doing other things with this money". The whole history of the Cold War proves this out.
There's a reason MiGs and AKs are common as cockroaches.
Third, it doesn't matter what a fab costs to build, unless you want to build one. This is an arbitrage issue; there's plenty of non-Western places that have first-world fab capacity that would be more than happy to crank out Russian IP all day long. More importantly, they have local, non-Western talent to do the heavy lifting associated with tailoring Russian IP to fine geometry fabrication.
Ultimately, this is a political, not economic decision. And it doesn't matter if Intel has a bigger/faster/stronger processor (I agree with you that it will). It matters that the Russians (just like the Chinese have done for a decade with Loongson) can legitimately say "we have a locally produced alternative to the Western hegemony". And let's not forget that the Chinese have taken what amounts to a licensed MIPS derivative with a fraction of Intels R&D budget and produced top-10 TFLOP supercomputers. Also see: ARM.
And I want to point out something that I don't see mentioned that much. If you read the proceedings of HotChips or one of the other conferences, not all, or even most, of those papers are being submitted by Westerners. While they work mostly for Western companies now, it's not like we're the only source of innovation in the world. You only have to look to ARM to see how a modest investment by wildly talented engineers can toss the market on it's ear over time.
Taking this on outside of a consortium and using a novel "dynamic translation" architecture? Way not optimal.
Adequate performance for high-security requirements? Not so hopeless. Building and operating secure systems will costs thousands to tens of thousands per seat, so a few hundreds of dollars to know your CPUs are not back-doored is cheap in the greater scheme.
It could succumb to a wide range of reasons for failure. But making an CPU that doesn't have to be price/performance competitive is not out of reach for any of dozens of nations, if they feel a need to do it.
In addition, more CPU choices will always mean more flexibility for hardware startups. Just think about how hard it is to source a CPU in sufficient quantities. A hungry manufacturer eager to gobble up market share from others might be more willing to accommodate a startup's needs.
You don't succeed in automotive industry by trying to directly compete with BMW, this is absolutely hopeless. Tesla has a real shot on success on the other hand.
Same here: next Intel won't be doing anything similar to Intel. But someone offering real quantum computing may get there. Someone making a chip with thousands of simple cores and somehow 'bringing Moore's law back' [1] may get there. But this one is just too similar. Intel's established, polished business processes on all levels can easily beat this.
Also, the idea that 'if they succeed' (not a quote) then " this will only diminish returns in the industry as whole so will be anyway bad investment" (your comment) is just contrary to the experience of any other startup that succeeds.
It's just bad economics. I would question whether you've ever seen a successful startup - there is no shame in saying you haven't. But if you want to contribute meaningfully, then IMHO I would look into some.
Sorry if I'm blunt.
Why should they do that? So that they can be pressured by possible sanctions in the future? (which wont work at the moment, since Russia is a strategic partner of China - but it might change in the next decade)