Don't forget they did release the Special Edition 9900K with a 5GHz all core speed. You will just need to have a huge AIO to cool it and have a 1000W PSU minimum. Probably all for the low cost of $1000.
Different design that just doesn't crack that barrier. My 2700x runs at 4.2 on air. Im ok with that. I haven't paid to much attention to GHZ.. I also have the 8600k and it's hitting 4.9 but it's neither better or worse than the 2700x from a everyday use perspective. I've always liked them both.
Who says AMD needs 5GHz on all cores? GhZ aren't everything.
AMD could just raise their all core clocks to 4.5GhZ and you get an equivalent of 9900ks running all cores at 5GhZ in regards to actual performance. That's how good AMD's IPC actually is.
Plus, with AMD, you will end up with much lower power consumption to boot.
AMD also doesn't suffer from security issues like Intel does (in which case, Intel's performance suffers by quite a bit enough that even an overclocked 9900ks to 5ghz all cores would basically be on par with AMD's Zen 2 8c/16th stock.
But one of the main issues for lack of 5GhZ on Zen 2 is probably the node. 7nm TSMC had some issues which basically downgraded initial performance expectations from 40% to 25%.
Also, Intel has been using 14nm for a long time now, to the point where the node has been heavily refined.
you want higher clocks out the factory? Wait for Zen 3 (on 7nm+). The node will likely be improved by then to resolve some clock issues, so its not exactly a big problem.
TY. I don't need/want 5Ghz. Just asking. In the end , after all the tests my bet is that clock for clock, Intel will still be IPC king or equal (mitigations OFF) and it will still have a 10% clock speed advantage (8 cores, best part). That is nothing to sneeze at.
Clock speed and IPC are different things that work together to get your ST/MT performance. You can test IPC by having 2 different chips at the same clock speed and seeing which completes as set of benchmarks faster. AMD is claiming that the 3800X will be faster than the 9900K, Zen 2 should have about a 10% higher IPC than Coffee Lake R since the max ST boost of 3800X is 4.5GHz and 9900K is 5GHz. Intel has about a 10% clock speed advantage and needs that added clock speed to make up for the lower IPC, at least since AMD says the 3800X is a little faster
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GTan - Monday, May 27, 2019 - link
If you are talking about the i9-9900K, the 5Ghz turbo is only for two-cores. It does not run all 8 cores at 5Ghz.schujj07 - Monday, May 27, 2019 - link
Don't forget they did release the Special Edition 9900K with a 5GHz all core speed. You will just need to have a huge AIO to cool it and have a 1000W PSU minimum. Probably all for the low cost of $1000.halcyon - Monday, May 27, 2019 - link
9900KS does all-core turbo at 5Ghz. Yes it is expensive. Yes, it is probably binned parts.But it exists.
Why can't AMD do all-core 8-core 5Ghz?
just4U - Monday, May 27, 2019 - link
Different design that just doesn't crack that barrier. My 2700x runs at 4.2 on air. Im ok with that. I haven't paid to much attention to GHZ.. I also have the 8600k and it's hitting 4.9 but it's neither better or worse than the 2700x from a everyday use perspective. I've always liked them both.Qasar - Monday, May 27, 2019 - link
halcyon.maybe because they dont need to ?
deksman2 - Monday, May 27, 2019 - link
Who says AMD needs 5GHz on all cores?GhZ aren't everything.
AMD could just raise their all core clocks to 4.5GhZ and you get an equivalent of 9900ks running all cores at 5GhZ in regards to actual performance.
That's how good AMD's IPC actually is.
Plus, with AMD, you will end up with much lower power consumption to boot.
AMD also doesn't suffer from security issues like Intel does (in which case, Intel's performance suffers by quite a bit enough that even an overclocked 9900ks to 5ghz all cores would basically be on par with AMD's Zen 2 8c/16th stock.
But one of the main issues for lack of 5GhZ on Zen 2 is probably the node.
7nm TSMC had some issues which basically downgraded initial performance expectations from 40% to 25%.
Also, Intel has been using 14nm for a long time now, to the point where the node has been heavily refined.
you want higher clocks out the factory? Wait for Zen 3 (on 7nm+).
The node will likely be improved by then to resolve some clock issues, so its not exactly a big problem.
halcyon - Tuesday, May 28, 2019 - link
TY. I don't need/want 5Ghz. Just asking.In the end , after all the tests my bet is that clock for clock, Intel will still be IPC king or equal (mitigations OFF) and it will still have a 10% clock speed advantage (8 cores, best part). That is nothing to sneeze at.
Qasar - Tuesday, May 28, 2019 - link
maybe.. but if zen 2 is as fast as intel while being 400mhz slower... that doesnt look good for intel... does it ??schujj07 - Tuesday, May 28, 2019 - link
Clock speed and IPC are different things that work together to get your ST/MT performance. You can test IPC by having 2 different chips at the same clock speed and seeing which completes as set of benchmarks faster. AMD is claiming that the 3800X will be faster than the 9900K, Zen 2 should have about a 10% higher IPC than Coffee Lake R since the max ST boost of 3800X is 4.5GHz and 9900K is 5GHz. Intel has about a 10% clock speed advantage and needs that added clock speed to make up for the lower IPC, at least since AMD says the 3800X is a little fasterazrael- - Monday, May 27, 2019 - link
HStewart, is that you?