Friday, August 21st 2026
Intel "Nova Lake-S" 28-Core SKU With bLLC to Draw Nearly 300 W at PL2
Intel's upcoming "Nova Lake-S" desktop processors are nearing launch, and the rumor mill is intensifying as we receive more information about clock speeds, core configurations, and power consumption. According to a post on the Weibo forums, Intel's 28-core SKU with a big last-level cache (bLLC) integrated into the package will reach up to 296 W of power consumption at the Power Level 2 (PL2) setting. This is the maximum power draw the CPU can achieve during short bursts of turbo clocking, reaching its peak. Compared to the current top-end "Arrow Lake-S" 24-core Core Ultra 9 285K, which has a PL2 setting of 250 W, the additional four LPE-Cores on the latest "Nova Lake-S" will increase that number by about 18.4%.
Previously, we learned that "Nova Lake-S" will be very power-hungry, especially in the top-end SKUs. For example, Intel's top-end, overclocking-focused, dual compute die "Nova Lake-S" CPU with 52 cores will feature a PL2 mode with a power level of 474 W. This is an unprecedented number for an Intel consumer desktop platform, typically expected from a high-end desktop (HEDT) design. However, since this is a 52-core design that can be overclocked, it represents the highest CPU PL2 setting that Intel will be shipping with "Nova Lake-S." For single compute die SKUs, the PL2 limit appears to be 296 W.Finally, this could be the previously leaked Intel Core Ultra 9 4950K, identified as a 28-core "Nova Lake-S" desktop chip. It features 8 "Coyote Cove" P-Cores, 16 "Arctic Wolf" E-Cores, and 4 LPE-Cores. Intel is testing many SKUs for "Nova Lake-S," and a four-digit naming scheme could be necessary due to the numerous SKUs and configurations, so the new naming scheme might be on the way.
Source:
HXL on X
Previously, we learned that "Nova Lake-S" will be very power-hungry, especially in the top-end SKUs. For example, Intel's top-end, overclocking-focused, dual compute die "Nova Lake-S" CPU with 52 cores will feature a PL2 mode with a power level of 474 W. This is an unprecedented number for an Intel consumer desktop platform, typically expected from a high-end desktop (HEDT) design. However, since this is a 52-core design that can be overclocked, it represents the highest CPU PL2 setting that Intel will be shipping with "Nova Lake-S." For single compute die SKUs, the PL2 limit appears to be 296 W.Finally, this could be the previously leaked Intel Core Ultra 9 4950K, identified as a 28-core "Nova Lake-S" desktop chip. It features 8 "Coyote Cove" P-Cores, 16 "Arctic Wolf" E-Cores, and 4 LPE-Cores. Intel is testing many SKUs for "Nova Lake-S," and a four-digit naming scheme could be necessary due to the numerous SKUs and configurations, so the new naming scheme might be on the way.

125 Comments on Intel "Nova Lake-S" 28-Core SKU With bLLC to Draw Nearly 300 W at PL2
I don't know why PC gamers go to such lengths to defend such senseless defaults. It's not like GPUs where more power = more frames. Here it's entirely unrelated to frame rate. It's just 10% higher benchmark wankery. Both AMD and Intel chips perform fine at 150W now and in a better world they would agree to step back.
Perhaps I was too focused on the max power draw when in reality the average across a range of apps matters.
If a very high max power draw is a disadvantage then a very low ST power draw is an advantage.
So it evens out when looking at an average.
Regarding max power draw the original 2024 data was more favorable to Arrow Lake vs Zen5 for some reason.
Fast forward to 2026 and suddenly 285K max power draw goes up by 26 W while 9950X goes down by about 12 W.
However the average power draw doesn't change much for either CPU when comparing 2024 with 2026. Which seems to prove my previous point.
2024
285K goes to a max of 238 W
tpucdn.com/review/intel-core-ultra-9-285k/images/power-applications-compare-vs-9950x.png
9900X goes to a max of 172 W:
tpucdn.com/review/intel-core-ultra-9-285k/images/power-applications-compare-vs-9900x.png
9950X goes to a max of 220 W.
The max values for the 285K and 9950X are rather close.
tpucdn.com/review/amd-ryzen-7-9800x3d/images/power-applications.png
Average is also close, 132 vs 134 W.
2025
9950X goes to a max of 211 W.
9950X3D goes to a max of 212 W.
tpucdn.com/review/amd-ryzen-9-9950x3d/images/power-applications-compare-9950x.png
2026
285K goes to a max of 264 W.
tpucdn.com/review/intel-core-ultra-7-270k-plus/images/power-applications-compare-core-ultra-9-285k.png
9950X3D goes to a max of 209 W.
tpucdn.com/review/amd-ryzen-9-9950x3d2-dual-edition/images/power-applications-compare-ryzen-9-9950x3d.png
9900X and 9950X are missing in 2026.
But given the very similar 2025 results between the 9950X and 9950X3D I would assume that the same is valid in 2026.
tpucdn.com/review/intel-core-ultra-7-270k-plus/images/power-applications.png
Average is again close, 133 vs 137 W.
However after correcting for the anomalous Emu PS3 result, the average for the 285K should be 135 W.
Why do I bring the 9950X into the discussion?
Because the 9700X is capped at 80 W so it always goes to a max of 80 W, but the with 9900X and 9950X it's a bit different.
Given the 2024 to 2026 variation regarding the 9950X can I assume the 172 W from 2024 will hold true in 2026 for the 9900X?
Now you see the dilemma?
I can just rule of three it:
9700X (2024) - 80 W
9900X (2024) - 172 W
9950X (2024) - 220 W
9700X (2026) - 80 W
9950X (2026) - 208 W
9900X (2026) - (172 + 162.62)/2 = 167.31 -> 167 W estimated
Is that fair? Is it accurate? Can't be sure without actual testing.
Anyway.
It's possible that the increased Arrow Lake power draw for 2026 is because of 200S Boost?
Could be, this is the only explanation I can think of.
Again for apples to apples I need the 285K and a "12 core single CCD 9900X". These are the baselines for Nova Lake single tile bLLC vs Zen6 "10800X3D".
To compensate for the dual CCD penalty I will use the non-X3D to X3D app gain taken from the 9950X to 9950X3D examples.
The problem is the gains are different.
In 2025 we have 4.71% for apps.
tpucdn.com/review/amd-ryzen-9-9950x3d/images/relative-performance-cpu.png
tpucdn.com/review/amd-ryzen-9-9950x3d/images/average-fps-1280-720.png
In 2026 we have 3.46% for apps.
tpucdn.com/review/amd-ryzen-7-9850x3d/images/relative-performance-cpu.png
tpucdn.com/review/amd-ryzen-7-9850x3d/images/average-fps-1280-720.png
Okay I'll do 4.08% in apps and for 720p gaming I'll simply consider the "single CCD 9900X" as equal to the 9950X as to negate the dual CCD 6+6 penalty.
So for 2024 if I take the following for apps:
tpucdn.com/review/amd-ryzen-7-9800x3d/images/relative-performance-cpu.png
tpucdn.com/review/amd-ryzen-7-9800x3d/images/power-applications.png
285K - 121% / 132 W -> 0.917 rel. perf. / W
9900X - 112% / 113 W -> 0.991 rel. perf. / W
"single CCD 9900X est." - 116.6% / 113 W -> 1.032 rel. perf. / W
Then 1.032 / 0.917 -> 1.125 thus a "12 core single CCD 9900X" would be 12.5% more efficient on average than the 285K using 2024 data, in apps.
For games:
tpucdn.com/review/amd-ryzen-7-9800x3d/images/average-fps-1280-720.png
tpucdn.com/review/amd-ryzen-7-9800x3d/images/power-games.png
285K - 192.8 fps / 94 W -> 2.05 fps / W
9900X - 194.6 fps / 100 W -> 1.95 fps / W
"single CCD 9900X est." - 198.6 fps / 100 W -> 1.99 fps / W
Then 2.05 / 1.99 -> 1.030 thus the 285K would be 3% more efficient on average than the "12 core single CCD 9900X" using 2024 data, in 720p gaming.
And for 2026 if I take the following for apps:
tpucdn.com/review/intel-core-ultra-7-270k-plus/images/relative-performance-cpu.png
tpucdn.com/review/intel-core-ultra-7-270k-plus/images/power-applications.png
285K - 98.7% / 135 W -> 0.731 rel. perf. / W
9900X est. - 90% / 116 W -> 0.776 rel. perf. / W
"single CCD 9900X est." - 93.1% / 116 W -> 0.803 rel. perf. / W
Then 0.803 / 0.731 -> 1.098 thus a "12 core single CCD 9900X" would be 9.8% more efficient on average than the 285K using 2026 data, in apps.
For games:
tpucdn.com/review/amd-ryzen-9-9950x3d2-dual-edition/images/average-fps-1280-720.png
tpucdn.com/review/amd-ryzen-9-9950x3d2-dual-edition/images/power-games.png
285K - 196.4 fps / 112 W -> 1.75 fps / W
9900X est. - 200.6 fps / 119 W -> 1.69 fps / W
"single CCD 9900X est." - 206.0 fps / 119 W -> 1.73 fps / W
Then 1.75 / 1.73 -> 1.012 thus the 285K would be 1.2% more efficient on average than the "12 core single CCD 9900X" using 2026 data, in 720p gaming.
www.techpowerup.com/review/amd-ryzen-9-9950x3d2-dual-edition/17.html
Starfield - +0.2%
TLoU - +0.26%
Alan Wake 2 + RT - +1.46%
Indiana Jones + RT - +2.51%
Spider-Man 2 + RT - +1.89%
I'll exclude the first two because they're basically margin of error so the average for the remaining three is 1.95%. Let's round up to 2%.
Well this 2% wouldn't be every time, it would in some games so the bump to the total average would be pretty small.
But every bit counts.
Another aspect which favors AMD.
If we look at the 9800X3D vs 9900X gaming power draw we see a clear advantage for the single CCD part even accounting for the X3D gain. It would seem that dual CCD parts are more wasteful.
A "12 core single CCD 9900X" might have lower power draw than the actual 9900X, even having the same cores but on a bigger single CCD would help.
And I doubt the "10800X3D" would be wasteful. It does have more cores per CCD but it's still a single CCD therefore I believe the gaming power draw would be closer to the 9800X3D than to the 9900X.
Actually the juiced 9850X3D might be the closest match.
And one reason for which I believe this is AMD would not ruin the "10800X3D" by having it draw a lot of power in gaming. It does have a 50% core increase but not all games will use that. In those that don't I'm expecting power to be quite low, in some that are thread heavy power draw might be clearly higher than on the 9800X3D.
So even when estimating I have to use what's available, and what is favors AMD not Intel regarding efficiency. And if things scale up rather proportionally then Intel needs a bigger effort to match AMD in efficiency.
Even though in gaming the 285K ended up slightly more efficient in both 2024 and 2026 data, things would be different if I would bring the power draw of the "special 9900X" closer to the 9850X3D.
And if I use the estimated perf numbers for the NL bLLC and "10800X3D" from post #69 and pair them with the same 2026 power draw numbers for 285K (apps/gaming) and "special 9900X" (apps) + 9850X3D (gaming) then efficiency wise Zen6 wins clearly.
Thus when setting up expectations for NL vs Zen6, I am still giving AMD the upper hand.
I'm trying to look at this battle from all angles and be completely detached and objective. It's not impossible nor improbable for Intel to win but the signs when using the current gens as baselines for the future ones, are favoring AMD.
There is some hope for Intel, as the 2024 vs 2026 data for 285K shows that an increase in the max power draw doesn't automatically ruin the average, and likewise in the case of the 9950X a decrease of the max power draw doesn't mean an automatic improvement of said average.
However things add up, and the more MT apps in an average the greater the disadvantage. Performance might increase too but not at the same rate of the power draw meaning efficiency is worsened.
As such my concerns over the NL chip going over 250 W seem justified.
Even if this analysis restored a bit of faith in me, I still stand by the previous "AMD has this in the bag" statement.
Stop bending over backwards to defend x86 monstrosities trying to get 10% higher benchmark scores with 80-100W extra power. They have plenty of performance with 150W power limits for 1 tile/CCD parts and 300W power limits for 2 tile/CCD parts. But they'll go beyond reasonable instead. Gamers don't benefit from it. Most customers do not benefit from chips being pushed far out of their efficiency envelope in MT. Yet it does waste power and metals on excessive coolers.
tpucdn.com/review/intel-core-ultra-7-270k-plus/images/relative-performance-cpu.png
So if a 270K is the 100% baseline and the 285K is 98.7%, the 9900X is estimated at 90%, the 9900X3D at 93.1% (this is a stand-in for a 9900X 12 core single CCD), then a 9900X3D2 at 96.3% (this is a stand-in for a 9900X3D 12 core single CCD).
Right so using 93.1 instead of 93 and 96.3 instead of 96 the estimations are:
1. 109.86%
2. 113.15%
3. 115.95%
Now I have a fourth method of estimation.
We first use the 7900X and 9900X. There is only a gain from the newer arch, the frequency is basically the same and perhaps a small penalty because of the lower max power ceiling on the 9900X.tpucdn.com/review/amd-ryzen-9-7900x/images/boost-clock-analysis.png
tpucdn.com/review/amd-ryzen-9-9900x/images/boost-clock-analysis.png
Average for 7900X is 5461.5 MHz.
Average for 9900X is 5439.5 MHz.
For the old data the difference (app avg) is rather small, 4.58%.
Now I need to have these two CPUs in the new dataset. I already estimated the 9900X at 90%.
The 9900X would be 6.38% better in the new dataset.
However I need a single CCD 9900X, so I will double the gain in order to account for the dual CCD 6+6 to single CCD 12 improvement.
The gain is a bit high but it also compensates for the lack of a power limit penalty which was present from 7900X to 9900X. Also it compensates for the zero frequency increase from 7900X to 9900X.
So now I have a 10700X let's say at 101.5%. For the 10800X3D I use a 3.46% 9950X to 9950X3D gain thus it becomes 105%.
So now if I average the 4 estimations I get (109.86 + 113.15 + 115.95 + 105) / 4 = 111%
With a range of 105-116%.
I am pretty confident that the 10800X3D will land in this area.
App avg
NL single tile bLLC - 123.5%
10800X3D - 111.0% (range between 105-116%)
9950X3D - 105.0%
9950X - 101.5%
270K - 100.0% baseline
285K - 98.7%
9900X3D - 93.1%
9900X - 90.0%
There is one more possible advantage for the 10800X3D.
The SMT OFF vs SMT ON gain.
I use the 9700X because even though it's non-X3D it's the current arch.
If I look at the relative performance chart the gain for OFF is 2.5%.
tpucdn.com/review/amd-ryzen-9-9700x-performance-smt-disabled/images/relative-performance-games-1280-720.png
If I look at the avg fps chart the gain for OFF is 3.24%.
tpucdn.com/review/amd-ryzen-9-9700x-performance-smt-disabled/images/average-fps-1280-720.png
However I am interested in the best case scenario, which means either SMT OFF or ON depending on the game (the user can test himself to verify, then make the appropriate change for each game, not too much hassle).
NL single tile bLLC - 100% baseline
10800X3D - 103.9% default config (SMT ON)
10800X3D - 106.8% best case scenario (SMT OFF or ON depending on the game)Corrections made in red.
Some MT estimations made here and here.
Heavy MT will not be one of its strengths.
Yep I still give AMD the win, higher avg gaming perf, higher avg gaming efficiency, lower app avg perf but slightly higher app avg efficiency. :p
overall, dont worry about the CPU at 300W for a few seconds when the GPU pulls 500W consistently. horses for courses.
A 3L engine from a German or Italian manufacturer is double the power and quarter of fuel consumption of an all made in US of A, 6L American engine. :D
The Irony is both Intel and AMD are USA companies...
Intel def helped thier efficiency, especially going to a 3nm class node, but thier efficiency is not that good compared to amd. 45w more power on a more efficient class of node is still pretty telling of intel's efficiency vs AMD.
Panther lake is also muvh more efficient than amd's mobile parts beacuse of 18A, whilst having horrible clock scaling issues, is a suprisingly amazing node. It beats tsmc's best 2.5nm ish node (based on n3 3rd gen efficiency improvements over 1rst gen being like 20%) in terms of transistor performance, which i think Intel dosent get nearly enough credit for how suprisingly good 18A is. Yes, they have scaling issues in terms of yeilds, and clocks are low, but when intel gets a functioning print, thier print performs dammed well. It allows them to quite literally brute force efficiency. Intels fab ability is wayy to underestimated, but thier cpu architecture is pretty mid though.
I hope intel can just shift to being a foundry. If they can improve yeilds, i think they have a much better chance at being a tsmc competitor vs trying to compete with AMD, especially with 14A. Maybe when they get their shit together they can come back to being a top performer, just like AMD did.
tpucdn.com/review/intel-core-i9-14900k-raptor-lake-tested-at-power-limits-down-to-35-w/images/efficiency-multithread.pngNah, the argument is that Intel is a miniature sun because if you get the unlocked k chip, remove all power limits, Amp limits, pl2 duration and temp limits it will draw a lot of power. Clearly it's the cpu fault that the user bought an unlocked k chip instead of the locked t or non k and didn't put any limits in place.
It's not like amds equivalent chips can draw 300w when you remove all limits right? Right?
And that's multithread lolll. the e cores help at lower power envelopes, duh. Please know that raptor lake draws that much power stock, no disabling any settings. I don't get why your so trying to cling onto Intel. Intel is doing shit rn stop bootlicking them. If an architecture is really superior, use up to date, modern data ffs.
Also the person who said 300w for the 24c SKU forgot that and jumped from 4nm to 2nm, which is (quite close to) a 40% intrinsic power reduction and a far superior node. Amd also improved the interconnect and io die so much that they got a 70% overall efficiency boost, which makes your napkin math heavily innacurate. You are using such crap numbers, you clearly have 0 clue about architecture design and are throwing shit at the wall until it sticks
I'm using tsmc scaling data,cinnebench geekbench, and passmark scores. I used leaked plum-msd1 benchmarks which prove what I an saying is true. With unoptimized clocks on 3nm, a ryzen 5 (due to CCD core count and only using n3e instead of n2) beats a ryzen 9 chip from last gen whivh draws more power by 33% in st
That's the low end SKU, so its more like 50% actually. That's almost the same st leap as the 1800x was from fxSt is going up by 40%. X3D gaining that little would be extremely hard to do with a 15% IPC bump, 20% higher clocks, and more l3 cashe. Your numbers don't reflect either company accurately. Asumming zen6 is not going to be a huge uplift is just not accurate with the Msd1 leaks.
Not that it's really relevant on the Nova Lake thread.