Originally posted by Jabberwocky
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Core i7 7700K vs. Ryzen 7 1800X With Ubuntu 17.04 + Linux 4.12
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Originally posted by bug77 View PostIt puzzles me to see people thinking multithreading is the new kid on the block that will save puppies from dying one we figure out how to properly put it to good use. The reality is we've had (super)computers that would run hundreds of threads for decades. We've written code for them.
Another thing, the server software behaves differently. The old servers from 1990s and 2000s used to run on a cluster of machines. One machine as reverse proxy, few as DB servers, a dozen as frontend servers and so on. Now the slow clusters (with 1/10G eth interconnect) are being replaced by heavy 22+ core CPUs on the cloud. So, even now the multi-socket and multicore are way faster than the old stuff and it truly is an upgrade. PCIe and QPI/UPI are way faster than gigabit ethernet.
But the simple fact is not all problems are infinitely parallelizeable and even when you find tasks that are, you're hit by other problems that impact multithreading (e.g. memory coherence - look what happens the your data resides in another CCX's cache).
My recommendation is stop trying to predict the future. Buy what works for you now and let people in the know handle the advancements. When/if advancements come, upgrade and enjoy. When/if advancements don't come, enjoy your current rig
This whole multicore craze reminds me of the early 2000s when people where convinced that since they suddenly started thinking about EVs, by 2005 everyone will be driving one.
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Originally posted by caligula View PostYou're still sceptical even though ESP32, $9 RPi clones, and anything upwards has multiple cores and the number is increasing with each year? A quad-core ARM costs ~ $2. Everyone can already buy them.
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Originally posted by pal666 View Postpointless comparison. 1800x's competition is $1100 6950
if you feel urge to compare 7700, compare it against 6950, not against two times cheaper ryzen
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Originally posted by caligula View Post
"CPU with higher clock speed goes faster." <-- not true, depends on the task. All Intel server CPUs with 12+ cores have much lower clock speed and they 'go faster' in those tasks they were designed for. Game FPS isn't the only metric. Throughput is much better metric for some useful tasks. Besides, with high throughput, you can often even finish tasks faster for example in web servers. It just depends on how you define tasks.
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Originally posted by pal666 View Posti messed it up, competition is i7-6900k, which is of more or less same speed and two times more expensive
6800 is competition for 6core ryzens
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Originally posted by efikkan View Posti7-6800K is in the same price range and is very competitive. In fact, it beats 1800X in most common use cases. What matters is real world performance and price, not theoretical specifications. The same argument was used for Bulldozer; it had more cores so it had to be "better".
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