Review Intel i9-12900K – Alder Lake on Windows 10 vs Windows 11

well it’s finally here the day that we can talk about alder lake’s performance but this video isn’t going to be your typical review let me set the stage for you because there’s been a debate raging about how these new intel processors should be tested on one hand there’s the folks who think that we should stick to windows 10 for testing that’s understandable since well this new os still has a long list of performance and usability issues on the other hand there’s optimizations in the windows 11 scheduler that can technically help alderlake operate at peak efficiency i talked about some of those in the video right up here and you should check it out since it’s kind of a primer for this video so do we test the 12 900k on the most popular os or on its quote-on-quote upgrade or do we split the testing and go with amd cpus on windows 10 and alde lake on windows 11.

obviously none of that that would be a little too weird so we ended up testing all of the cpus on both windows 10 and windows 11 and we’ll compare the results that way all the cards will be on the table and you guys can basically make an informed decision by the way side note here this was so infuriating but it was still fun it was a week of benchmarking with over 300 tests run because there were some major bugs and issues i heard mike scream a couple of times while he was benchmarking at least we got some interesting stuff out of that testing that we’ll discuss right after a message from our sponsor [Music] do the q58 by leon lee compact design with enormous versatility check it out below so aldo lake how is it different well as you might already know intel broke the layout of the chip into two different types of cores there’s the performance or p-cores and efficient or e-cores they’re designed to handle different types of loads but typically the performance cores due to heavy lifting and the efficient ones handle background tasks but if there’s a heavily multi-threaded workload that comes up all of the cores the p and the e’s will come and work together on it this leads us to the core configurations the 12900k that i’m covering in this review for example it has an eight plus eight layout and since the p cores have hyper threading enabled that cpu has a total of 24 threads while the 12 700 and 12 600 series use a more cut down form of the same chip if you want to get a bit of a deeper dive into how all this works eber did an awesome overview last week that you can find right up here in any case let’s get to what you’re here for for all the benchmarking the team used the latest version of windows 10 and windows 11 and made sure that we had all of the latest patches including the ones amd just rolled out for the chipset and os each system was set up with 32 gigabytes of memory running at ddr4 3600 or ddr5 4800.

Paired with that was an rtx 3080 ti to make sure that the gpu was not a bottleneck in these tests i’m focusing on the 12 900k mike is currently busy on a separate video for the 12 600k so stay tuned for that all in all we’re testing the intel 12900k 11900k the 10900k and for amd we’re testing the 5950x and the 5900x and just so you know it’s fair multi-core enhancements have been disabled for all tests that includes pbo for amd and the general mce for intel i mean multi-core enhancements is a great free performance tool but boy does it screw with power consumption so let’s get into that ever since intel introduced their power limits or pl settings their chips behaved a lot like the 11900k that you’re seeing right here when the cpu is stressed to 100 there’s a short burst of power for a few seconds in pl2 mode followed by the chip settling at its rated tdp or pl1 which is 125 watts here the 12 900k though well it’s completely free from its time limits now it will run at around 225 watts all day every day and we saw it go even higher in some synthetic benchmarks of course that’s as long as you have enough cooling and that the motherboard is able to provide enough current and remember this is at intel’s default level bone stock that’s a long way from amd’s power consumption levels from 8 to 16 cores amd’s 5000 series manages to stay under 150 watts stock that’s something to keep in mind in terms of cooling a constant 225 watts is a lot for any heatsinks to handle i mean the last time that a chip behaved like this at stock was the amd fx 9590 and that thing came with an aio cooler by default for a reason to give you an example check this out we slapped the noctua nhu12a onto the

12900k we set the fans to 75 and we hit it with an all-core maya load and this happened when compared to other cpus for this cpu you’ll need a really high-end air cooler or a pretty big aio to keep this chip at an acceptable temperature and that leads to higher overall system costs when compared to an amd option out there but then again if you’re spending 650 us bucks or 750 poutine dollars on a processor you shouldn’t be cheaping out on the cooling in the first place now that’s all based on a heavily multi-threaded workload which we’ll get back to later for benchmarks but what happens when you’re actually gaming well the temperatures come back to earth real quick and buy a lot since there isn’t a single game on the market right now that’s gonna max out any of these cpus not any good games at least and while yes it is a fire pit when it’s being pushed to 100 core load the 12 900k actually consumes about as much power as older intel cpus and current ryzen cpus when it’s gaming essentially intel said well there’s no reasons to hold back on power if what they want is performance so let’s just crank it in heavy workloads but let’s make sure that when we’re normal workloads we keep that beast in check now sure it’s a lot of power but obviously you didn’t buy the cpu specifically for its space heater function you bought it for its performance and intel has some challenges here since using two types of cores can cause some serious issues when it comes to scheduling as it stands the windows 10 scheduler has never been the best when it comes to scheduling it’s so weird to say that’s why intel designed their thread director it’s meant to give information to the os to make sure that alder lake’s unique design is properly used the only issue is most of these optimizations are built into windows 11 and that’s why intel and microsoft have been pimping out the new operating system alongside alderlake but like i said before windows 11 still has a lot of maturing to do before gamers and even regular users should upgrade and that’s why we wanted to test on both windows 10 and windows 11 and thank god that we did because you’ll see when thread director works it really works but when it goes wrong everything goes wrong let me explain with a mozilla firefox compile first on windows 11 the 12 900k is super competitive it easily beats the 5900x and of course destroys previous intel generations but adding the windows 10 results to this shows exactly why we wanted to run both oss the 12900k is simply limping behind here with terrible performance the workload is a disaster for intel on windows 10.

Handbrake shows similar results intel edges out the competition’s finest cpu plus it’s a double win for intel when you consider that the 12 900k goes for 150 under the 5950x’s sep so yeah that’s handbrake on windows 11. now if we add windows 10 in here well it’s not quite as bad as the compiler test but the numbers are still terrible considering this new processor can’t even beat a 10 900k so what’s going on here well with alder lake being highly dependent on the os to sort the traffic it’s clear that intel and microsoft haven’t made the proper adjustments to windows 10 for alder lake which is frustrating to say the least basically it looks like there’s a breakdown in communication somewhere that’s causing some multi-core workloads to be thrown over to just the efficient cores rather than running on all cores it’s hard to know what exactly is to blame here but what’s obvious is it needs to be addressed and fast now sure this doesn’t happen in every application but it came up in two of the nine real world apps that we were using here and i’m sure that a whole lot more programs out there have the exact same behavior obviously most of the effort was put into windows 11 optimizations but i’m hoping that intel and microsoft move quickly and get the windows 10 side up to speed because right now this makes it hard to recommend any other lake cpus for prosumers at least it’s not the case for every single app take cinebench r23 for example in multicore the stock 12900k competes with and beats the ryzen 9 5950x in both windows 10 and windows 11.

It’s a slim five to six percent margin which might seem little since it’s competing with a one-year-old cpu but giving the fewer threads and the lower price it’s an alright trade when we go single threaded here that’s where alder lake really shines with a score exceeding 2 000 points regardless of the os when compared to amd’s 5950x it’s a solid 21 lead one thing that i noticed in both cinebench runs is that windows 11 seems to impact the score of both amd and intel cpus negatively it’s a very small difference mostly under one percent but it is consistently underperforming in windows 11 for cinebench moving on to our davinci resolve test you can see that the 12900k once again takes the lead in windows 11. adding the windows 10 results doesn’t change that lead but you can see alder lake takes a little hit here and that’s while every other cpu except for the 10900k get a slight boost in performance moving on to premiere intel can actually use its igp or integrated graphics during the render now of course alder lake is best here thanks to the igp but look at how much windows 11 has improved the integrated graphics performance it also brings a huge boost to the 10th and 11th generation of intel cpus blender cycles repeats the same thing that we’ve already seen in both os’s but i think that we’re also seeing a bit of variability make its way into these results it’s the same thing in the eevee render but this time amd’s 5950x edges out the 12 900k it’s a very slim win but a win nonetheless and amd keeps that lead for our meta shape test it’s interesting to see here that core count really matters i mean look at the 11 900k here it’s pretty sad it’s crazy how well the 12 900k performs against the very best amd has to offer especially in multi-threaded performance i mean remember this has the same amount of cores but it has eight fewer threads to work with but what about gaming well the popular thought is that windows 11 isn’t that great for gaming since it has a lot of background tasks running and i mean technically all the lake is supposed to be built for that kind of situation right well in cs go it’s by far the fastest processor here you can’t even compare it with the other intel generations the 12 900k is just in a different league now the order of things doesn’t change very much when we move over from windows 10 to windows 11.

The 12900k is still on top and the 10900k is dead last now do you see what i see comparing windows 10 to 11 you can really see why people aren’t happy with what microsoft has done the highest end chips get their performance cut down significantly the only exceptions are the slower 11 900k and 10 900k which get about the same frame rate in both situations valorent on the other hand sees the situation flipped a bit amd’s 5900 series takes a fairly good lead in the fps average department while the 12900k delivers a more consistent frame rate windows 11 unfortunately stuns the amd cpus and puts them very close to the 12 900k overall though the gaming results almost mirror what we saw in the real world benchmarks the i9 12 900k is able to offer impressive performance against amd’s 5950x in either os’s now as you might have noticed you’ll consistently see lower one percent lows on windows 11 and that is on almost every game regardless of the cpu that’s why we’re kind of saying that windows 11 is bad for gaming moving on to rainbow six it has two things i need to call out too first of all under windows 10 the 12900k seems to be underperforming while the 10900k excels also regardless of the os amd’s one percent lows are just trash it’s all over the place and we troubleshoot it for a while now intel’s flagship does dominate every now and then like in far cry 6 but even there windows 11 still handicaps the performance of the chip but hey like i said when you launch a new architecture with a new os there’s bound to be some problems and this is certainly one of the cases the last couple of games all basically show the same thing that we’ve already seen this time though there’s a bit more of a gpu limitation basically intel comes out with some solid performance numbers in both windows versions however some games just won’t really benefit that much for more cpu power some titles just need more graphics horsepower than others to make a noticeable difference and yes guys this applies even at 1080p also here in red dead redemption 2 the 12 900k takes a hit into one percent lows under windows 11.

It’s something that affected every cpu here at some point in the review so i guess that uh you know it’s alder lake’s turn to bear the curse so these were the gaming benchmarks all in all this cpu is a huge step forward for intel it’s a new architecture it’s a new mixed core design a new process node a new os really it couldn’t be more brand new for the company that got stuck on the same architecture for five years five years is an eternity in cpus but all this brand new newness this this rebirth all of this well it’s at the mercy of an os from a company that couldn’t be bothered to complete it and iron out the flaws before it releases it even if alderlake hadn’t come out think about it there are still huge inconsistencies in performance with amd processors so it’s not specific to intel although intel does depend on the new scheduler in windows 11 for the best performance anyways is it good value sure it’s actually surprisingly good value when compared to the 5950x it’s better in most cases and you can save at least 100 bucks but the whole ecosystem will need to mature the product will need to mature the os will need to mature the apps will need to mature and yeah it seems like all the lake is just going to get better with time and don’t think i’m shilling for intel here amd isn’t sitting on their hands it’s coming next year and it’s coming fast and that’s what i love competition in any case that’s pretty much it for today’s video as usual you can click right here to see the latest video right here to subscribe to the channel right here to see my video on ddr4 versus ddr5 since both platforms are supported on alder lake so it’s relevant and right here to subscribe to the boot sequence my channel i did it right i did it right it was good yeah okay cool bye guys

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