Intel Core i9-12900HX, new top-of-the-range CPU in sight for notebooks?

Intel Core i9-12900HX, new top-of-the-range CPU in sight for notebooks?

Intel Core i9-12900HX

An anonymous Lenovo laptop model equipped with the new 16-core Intel Core i9-12900HX CPU, next BGA socket-based Alder Lake-HX model, has recently been tested on Geekbench. The new processor has more cores and threads than the current top-of-the-range i9-12900HK, which features a 14-core, 20-thread configuration.

According to published information, the CPU would have a base clock of 2, 5 GHz and a maximum frequency of 4.88GHz, but it is nevertheless likely that the latter will reach 5GHz in the final model, considering that the leaked characteristics are still preliminary. The system is also equipped with a GeForce RTX 3080 Ti GPU, currently Nvidia's fastest and latest laptop graphics card.

Core i9 12900HX
The currently known Alder Lake-HX models are 12900HX and 12650HX, both with a TDP that should be above 55W. CPUs with 16 cores will also have fewer cores for the Xe-LP GPU (up to 32), but this is of no concern given the models intended for high-end gaming systems with dedicated GPUs. Core i9-12900HX therefore appears to be the notebook counterpart of the desktop model i9-12900KS, a stabilized version to be able to reach a maximum frequency of 5.5GHz. It seems that Intel intends to take the scepter of performance in all sectors.

In the meantime, there is no shortage of news even in the desktop segment: as we recently told you, now the consumer CPUs of the Intel Alder Lake range can use Error Correcting Code (ECC) memories when coupled to the W680 platform.

Intel Core i9 12900HX benchmark leaked

Last Updated: March 14th, 2022

The first indication of Intel Core i9 12900HX performance results has been discovered online. A Geekbench 5 score for an upcoming Lenovo 82TD laptop has been found, dated to March 10th 2022, which shows superb multi-core performance in particular for the upcoming Intel laptop CPU. We’ve also got some information on the specifications of the upcoming CPU.

If these results are to be believed, the new Intel Core i9 12900HX performs 10% better than the preceding Intel Core i9 12900H in multi-core tasks, though slightly underperforms in single-core scenarios (such as gaming) by around 2%. Have a look further down this page for a visual representation of how these results compare to the current competition.

Intel Core i9 12900HX Geekbench benchmarkIntel Core i9 12900HX specifications

See below for a list of the Intel Core i9 12900HX specifications that were revealed on the Geekbench page. Whilst these all seem to match up with our expectations, do remember that these aren’t confirmed and concrete at this stage.

The new Intel Core i9 12900HX uses the same big & little architecture as the other Alder Lake CPUs, incorporating the more powerful performance cores (p-cores) for more intensive tasks and the more energy-efficient efficiency cores (e-cores) for less demanding tasks. P-cores each have two threads, whereas e-cores only have one.

CPU nameIntel Core i9-12900HXGeneration / Family12th Gen / Alder LakeChipsetSocket 1700 LGAProcess node10nmCore/Thread count16 Cores (8 p-cores, 8 e-cores)/ 24 ThreadsBase frequency/ Clock speed2.49 GHzMaximum frequency/ Boost clock4.89 GHzL1 Instruction Cache32.0 KB x 12L1 Data Cache48.0 KB x 12L2 Cache1.25 MB x 3L3 Cache30.0 MB x 1TDP55WAlder Lake CPU specification comparison

Assuming the above specifications are accurate, here’s how the Intel Core i9 12900HX stacks up compared to the other Alder Lake CPUs.

CPU nameCore (p+e)/Thread countBase frequency/ Clock speedMax frequency/ Boost clockL3 cacheTDPMax Turbo powerIntel Core i9-12900HX8+8 / 242.5 GHz4.9 GHz30 MB55WTBDIntel Core i9-12900HK6+8 / 202.5 GHz5.0 GHz24 MB45W115WIntel Core i9-12900H6+8 / 202.5 GHz5.0 GHz24 MB45W115WIntel Core i7-12800H6+8 / 202.4 GHz4.8 GHz24 MB45W115WIntel Core i7-12700H6+8 / 202.3 GHz4.7 GHz24 MB45W115WIntel Core i7-12650H6+4 / 162.3 GHz4.7 GHz24 MB45W115WIntel Core i5-12600H4+8 / 162.7 GHz4.5 GHz18 MB45W95WIntel Core i5-12500H4+8 / 162.5 GHz4.5 GHz18 MB45W95WIntel Core i5-12450H4+4 / 122.0 GHz4.4 GHz12 MB45W95WIntel Core i7-1280P6+8 / 201.8 GHz4.8 GHz24 MB28W64WIntel Core i7-1270P4+8 / 162.2 GHz4.8 GHz18 MB28W64WIntel Core i7-1260P4+8 / 162.1 GHz4.7 GHz18 MB28W64WIntel Core i5-1250P4+8 / 161.7 GHz4.4 GHz18 MB28W64WIntel Core i5-1240P4+8 / 161.7 GHz4.4 GHz12 MB28W64WIntel Core i3-1220P2+8 / 121.5 GHz4.4 GHz12 MB28W64WIntel Core i9 12900HX performance vs Alder Lake vs AMD 6000 series Zen 3+

As you can see below, the 12900HX performs very well in the multi-core test, showing substantive gains over the 12900H, which was already demolishing the leading AMD competition by around 45%. Although it doesn’t quite beat the Intel Core i9 12900H in single-core workloads, it’s not far behind, and both processors still lead the latest release from AMD, the Ryzen 9 6900HX.

It remains to be seen how the upcoming AMD Ryzen 9 6980HX will compete in benchmarks against Intel’s finest. More on this below.

Intel Core i9 12900HX multi-core performanceIntel Core i9 12900HX benchmark multi core performanceIntel Core i9 12900HX single-core performanceIntel Core i9 12900HX benchmark single core performanceIntel Core i9 12900HX crypto score & other benchmark resultsIntel Core i9 12900HX crypto score other benchmarks 1Intel Core i9 12900HX crypto score other benchmarks 2Intel Core i9 12900HX vs AMD Ryzen 9 6980HX

We don’t yet have any performance data for the upcoming AMD Ryzen 9 6980HX, the high-end flagship of the AMD 6000 series range, so we aren’t able to directly compare it to the Intel Core i9 12900HX. Certain assumptions can be made, however:

  • Given that the number of cores/threads of the AMD CPU will be capped at 8/16 respectively, it’s very unlikely that the AMD Ryzen 9 6980HX will be able to compete with the Intel Core i9 12900HX in terms of multi-core performance. This pretty much cements Intel’s lead in 2022 as the king for workstation users and others interested in multi-core power, at least until AMD’s Zen 4 comes out towards the end of the year.
  • In terms of single-core performance, it’s probable that the AMD Ryzen 9 6980HX will be able to compete with, and possibly beat the Intel Core i9 12900HX in single-core benchmarks. We’ll have to wait and see to know for sure.
  • One area that we know the Intel Core i9 12900HX will not be able to compete with AMD in is power efficiency. To start with, the 12900HX has a TDP of 55W compared to the 45W of the 6980HX. Looking more generally, whilst Intel’s Alder Lake range have so far impressed in performance terms, when it comes to battery life in laptops and gaming laptops, they’ve been soundly trounced by the AMD Ryzen 6000 series laptops and their revolutionary 6nm Zen 3+ tech in every instance so far.
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