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Turn up the heat - Rocket-Lake-S CPUs charted and benchmarked

williamcll

Oddly, the 11900K seems to be a faster version of the 11700K rather than having extra cores and cache.

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According to the chart, Intel 11th Gen Core-K series will feature Core i9-11900K, Core i7-11700K, and Core i5-11600K. Only the latter is a 6-core CPU, while both Core i7 and Core i9 will debut with 8-cores.The K-series are feature 125W TDP and DDR4-3200 memory support. While there is no change in TDP compared to the Comet Lake-S series, the memory support has improved. MSI slide confirms that the Core i9-11900K will boost up to 5.3 GHz in Thermal Velocity Boost mode with all cores reaching up to 4.8 GHz. The base clock is as rumored before, 3.5 GHz.The 11700K will be 300 MHz slower, as it does not support Thermal Velocity Boost.  This SKU will have a 3.6 GHz base clock, which is 100 MHz higher than i9. The list ends at Core i5-11600K which is a 6-core and 12-thread CPU with a base clock of 3.9 GHz and turbo reaching 4.9 GHz.

Intel-11th-Gen-Core-Rocket-Lake-Specific

image.thumb.png.1c02def9a2e9d6ee115ee70e4cf40240.png

Over in Chiphell, a user was able to get hold of a 11900KF and ran a stress test with a basic 360mm Cooler
212312me74u41ape94fa41.png

Note all core clock being 4.78Ghz and does not thermal throttle at 98C. CPU voltage was 1.325V as opposed to the image shown. The power consumed was 250W.

Source: https://videocardz.com/newz/intel-core-i9-11900kf-heats-up-to-98c-with-360mm-aio-cooler

https://www.chiphell.com/thread-2297915-1-1.html

Thoughts: I guess this was the real reason that Intel was designing that thermal-electric cooler for. I do wonder how much the IPC has gone up in comparison to the 10700K however. Maybe it's time for people to make more 420mm AIOs?

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3 minutes ago, williamcll said:

Thoughts: I guess this was the real reason that Intel was designing that thermal-electric cooler for. I do wonder how much the IPC has gone up in comparison to the 10700K however. 

So peak power is similar ball park to 10th gen. Intel claimed up to 19% IPC uplift with Rocket Lake. This contrasts with an average 18% claimed for Sunny Cove/Ice Lake, which is the architecture it heavily draws from. It will vary depending on software so we'll have to await independent testing once they are officially available.

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Rocket Lake is such a weird release. In a vacuum it would be a decent release with the IPC increase, but with Alder Lake is rumored to be coming in September I just don't see who's in the market for one of these. I guess if you don't have a PC sure but for literally anyone else you'd be better served waiting as you're looking at an even bigger performance increase plus DDR5, it's just going to a way longer lasting platform.

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A big part of the generational increase in performance is the rise of clock speeds.

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10 minutes ago, illegalwater said:

Rocket Lake is such a weird release. In a vacuum it would be a decent release with the IPC increase, but with Alder Lake is rumored to be coming in September I just don't see who's in the market for one of these. I guess if you don't have a PC sure but for literally anyone else you'd be better served waiting as you're looking at an even bigger performance increase plus DDR5, it's just going to a way longer lasting platform.

Alder Lake has only been stated as 2H this year by Intel. While in theory that could be as early as July, usually it'll be right at the back end of the window. If it was really September, they would likely have said Q3 instead. September would be a good time, it means product is ready in time for the holiday season, but I'd assume later, even without the risk of further delays.

 

Also people tend to buy for current needs. If you need a new system within the Rocket Lake time window however short it may be, it will be a consideration. We'll have to wait and see what Intel's availability and pricing will be like, but from the sounds of things supply of desktop Zen 3 isn't going to be great as they prioritise other more profitable areas.

 

9 minutes ago, Vishera said:

A big part of the generational increase in performance is the rise of clock speeds.

In the past that may have been a trend, but if the table in OP is correct, there is no uplift to the boost clocks on the top part relative to current, and even a slight reduction in base clock. Real world performance change will be driven by IPC.

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2 hours ago, williamcll said:

Maybe it's time for people to make more 420mm AIOs?

Admittedly, there are only a handful of cases that can support a 420 rad. Popular cases like the O11D (all versions), Meshify C, P400A, 500DX, Lancool 2 Mesh, 4000D and 5000D, etc are all out. 

 

P500A, Meshify 2, Silent Base 802 are three off the top of my head that support a 420rad (obviously there are older cases but I'm thinking the "new" cases). and all of those are "mid" towers that really should be classified as "full towers (being over 70L large) IMO

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1 minute ago, TVwazhere said:

Admittedly, there are only a handful of cases that can support a 420 rad. Popular cases like the O11D (all versions), Meshify C, P400A, 500DX, Lancool 2 Mesh, 4000D and 5000D, etc are all out. 

 

P500A, Meshify 2, Silent Base 802 are three off the top of my head that support a 420rad (obviously there are older cases but I'm thinking the "new" cases). and all of those are "mid" towers that really should be classified as "full towers (being over 70L large) IMO

My case doesn't support a 420 rad,even though it's a big case that supports E-ATX boards without any problems.

But it can support two 360 radiators,and a single 120 all at the same time.

You can make a custom loop with two 360 radiators in a lot of the cases you mentioned,and it's performance is superior to a single 420 rad.

 

Note about my case: I think that i might be able to mount a 420 radiator if i use only 3 fans instead of 4.

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Just now, Vishera said:

Note about my case: I think that i might be able to mount a 420 radiator if i use only 3 fans instead of 4.

420 = 3x140mm fans. You're thinking of 480mm (4x120mm)

 

Yes, two 360 rads are possible in many cases, but that requires a custom loop. We're specifically referring to AIO's for the more casual PC builder

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7 hours ago, TVwazhere said:

Admittedly, there are only a handful of cases that can support a 420 rad. Popular cases like the O11D (all versions), Meshify C, P400A, 500DX, Lancool 2 Mesh, 4000D and 5000D, etc are all out. 

 

P500A, Meshify 2, Silent Base 802 are three off the top of my head that support a 420rad (obviously there are older cases but I'm thinking the "new" cases). and all of those are "mid" towers that really should be classified as "full towers (being over 70L large) IMO

Think my Fractal Design R6 supports it in the top.

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9 hours ago, illegalwater said:

Rocket Lake is such a weird release. In a vacuum it would be a decent release with the IPC increase, but with Alder Lake is rumored to be coming in September I just don't see who's in the market for one of these. I guess if you don't have a PC sure but for literally anyone else you'd be better served waiting as you're looking at an even bigger performance increase plus DDR5, it's just going to a way longer lasting platform.

not sure about it having ddr5 though

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13 hours ago, porina said:

In the past that may have been a trend, but if the table in OP is correct, there is no uplift to the boost clocks on the top part relative to current, and even a slight reduction in base clock. Real world performance change will be driven by IPC.

The all-core TVB for the 10900K is 4.9GHz so the all-core clocks are actually very slightly lower.

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17 hours ago, illegalwater said:

Rocket Lake is such a weird release. In a vacuum it would be a decent release with the IPC increase, but with Alder Lake is rumored to be coming in September I just don't see who's in the market for one of these. I guess if you don't have a PC sure but for literally anyone else you'd be better served waiting as you're looking at an even bigger performance increase plus DDR5, it's just going to a way longer lasting platform.

Inb4 most games will tank in performance due to them using the low performance cores and not understanding how to operate a hybrid CPU with no upcoming updates to do so.

 

I think alder lake is weird, it's like phone CPUs no? One core at 5.5GHz max boost, another core at 2.3GHz max boost. How will older games know which core to use, or will they even function anymore? Yes, i know i can allocate cores. I shouldn't have to though. An upgrade just for the CPU is already over 1000€ ( CPU price, good motherboard, good RAM, good PSU to support everything)

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11 hours ago, Albal_156 said:

Think my Fractal Design R6 supports it in the top.

It does, 420rad support was as early as the R5/ Define S, but again, was only focusing on "new" cases

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19 hours ago, Vishera said:

Note about my case: I think that i might be able to mount a 420 radiator if i use only 3 fans instead of 4.

I can mount 3x 480 RADs in my LD PC-V8, 63mm deep EK XTX ones too. It is a bit tight in the bottom bay with two of them but you can 😀

 

Not that I need that much RAD but it does mean I can run totally passive so that's a bonus. At least I know I'm ready for basically anything, some would say too ready.

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3 hours ago, Rym said:

Inb4 most games will tank in performance due to them using the low performance cores and not understanding how to operate a hybrid CPU with no upcoming updates to do so.

 

I think alder lake is weird, it's like phone CPUs no? One core at 5.5GHz max boost, another core at 2.3GHz max boost. How will older games know which core to use, or will they even function anymore? Yes, i know i can allocate cores. I shouldn't have to though. An upgrade just for the CPU is already over 1000€ ( CPU price, good motherboard, good RAM, good PSU to support everything)

Assuming Intel works closely with Microsoft the Windows scheduler should take care of this. But we see how long it took them to get scheduling working properly with Ryzen, so yea.

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9 minutes ago, Dr_Whom said:

Assuming Intel works closely with Microsoft the Windows scheduler should take care of this. But we see how long it took them to get scheduling working properly with Ryzen, so yea.

Makes you wonder how much in advance the CPU manufacturers work with MS (and other OS areas like Linux) to get CPU support before launch. I don't mean just working at all, but working well.

 

While it remains to be seen what benefit the hybrid tech can bring to desktop, there is a workaround for anyone considering Alder Lake: get the models without the slow cores.

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IF the rumours are true about the 11900K going up to 98C with a 360 RAD then I really don't see the point of it especially if the 11700K is cooler and is so close to it in performance.

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1 minute ago, porina said:

Makes you wonder how much in advance the CPU manufacturers work with MS (and other OS areas like Linux) to get CPU support before launch. I don't mean just working at all, but working well.

 

While it remains to be seen what benefit the hybrid tech can bring to desktop, there is a workaround for anyone considering Alder Lake: get the models without the slow cores.

The last time someone tried a hybrid architecture (AMD with Bulldozer) it didn't work out too well. Though its Intel and they are well known in the industry so it might be different than Bulldozer.

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Just now, Albal_156 said:

The last time someone tried a hybrid architecture (AMD with Bulldozer) it didn't work out too well. Though its Intel and they are well known in the industry so it might be different than Bulldozer.

Bulldozer is nothing like this. Each core looked the same to the OS/software.

 

Alder Lake will have two different types of core offered. The nearest we have on x86 is Intel Lakefield. This is new ground for x86, even if it has been in mobile space for many years.

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19 minutes ago, Albal_156 said:

IF the rumours are true about the 11900K going up to 98C with a 360 RAD then I really don't see the point of it especially if the 11700K is cooler and is so close to it in performance.

They are the same CPU just one is slightly higher binned. These temps are in a worse case scenario though, you are unlikely to get close to these temps in a gaming workload.

 

18 minutes ago, Albal_156 said:

The last time someone tried a hybrid architecture (AMD with Bulldozer) it didn't work out too well. Though its Intel and they are well known in the industry so it might be different than Bulldozer.

Bulldozer wasn't a hybrid arch at all, at least not in the big little sense.

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25 minutes ago, schwellmo92 said:

They are the same CPU just one is slightly higher binned. These temps are in a worse case scenario though, you are unlikely to get close to these temps in a gaming workload.

 

Bulldozer wasn't a hybrid arch at all, at least not in the big little sense.

Technically Bulldozer was an abomination:

You can't call what Bulldozer had cores,yet it operates like it has cores.

That's why experts called it a 4 modules/8 threads CPU,and not 8 cores/8 threads.

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5 hours ago, Rym said:

Inb4 most games will tank in performance due to them using the low performance cores and not understanding how to operate a hybrid CPU with no upcoming updates to do so.

 

I think alder lake is weird, it's like phone CPUs no? One core at 5.5GHz max boost, another core at 2.3GHz max boost. How will older games know which core to use, or will they even function anymore? Yes, i know i can allocate cores. I shouldn't have to though. An upgrade just for the CPU is already over 1000€ ( CPU price, good motherboard, good RAM, good PSU to support everything)

People use PC for more than games FYI. Regardless, Windows scheduler will handle it I think. This isn't Intel's first x86 hybrid design, Lakefield was a test run essentially.

 

It's not weird, we've seen hybrid architectures used in smartphones for ages. If anything it's weird that we didn't see it sooner on x86, laptops will benefit a lot from this. No doubt it'll be less useful for desktops, but it'll still offer better power efficiency when idle or doing lower power tasks like web browsing. Also assuming all the cores can be used simultaneously I could also see it being beneficial for non-gaming multithreaded workloads.

 

Yeah.. if you buy all high end parts and don't already have a PSU. You can easily upgrade your CPU while spending half of that or less.

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2 hours ago, porina said:

Bulldozer is nothing like this. Each core looked the same to the OS/software.

 

Alder Lake will have two different types of core offered. The nearest we have on x86 is Intel Lakefield. This is new ground for x86, even if it has been in mobile space for many years.

hopefully microsoft improves windows thread optimization or else people would just have to disable the weak cores or take a performance penalty. in a lot of games you can get a big performance boost by disabling hyperthreading 

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13 minutes ago, spartaman64 said:

hopefully microsoft improves windows thread optimization or else people would just have to disable the weak cores or take a performance penalty. in a lot of games you can get a big performance boost by disabling hyperthreading 

maybe require something like process lasso in the mean time

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