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Intel Core i9-12900K Flagship Alder Lake CPU Benchmarks Leak Out Again, Fastest Single-Threaded Chip & Right On Par With AMD Ryzen 9 5950X In Multi-Threaded Tests

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The latest Intel Core i9-12900K Alder Lake flagship CPU benchmarks have leaked out and the QS chips show much faster single-threaded performance than Rocket Lake while offering multi-core performance on par with AMD's flagship Ryzen 5000 CPUs.

Intel Core i9-12900K Alder Lake Benchmarks Show Fastest Single-Threaded Performance, Up To 20% Faster Than AMD Ryzen 9 5950X

While we have already seen several benchmarks of the Intel Core i9-12900K Alder Lake CPU, this is the first time we are getting results from a QS chip that should offer better performance & overall stability. The tests were carried out on a B660 motherboard along with DDR4-3600 memory in Gear 1 mode. The benchmarks were leaked over at Bilibili and spotted by HXL.

Intel Core i5-12600K CPU Up To 50% Faster Than Ryzen 5 5600X, Blows Away The Rocket Lake Core i9-11900K Flagship In Leaked Benchmarks

Intel Core i7-12700K CPU Specifications

The Intel Core i7-12700K CPU will offer 8 Golden Cove cores but cut down the Gracemont cores to 4. This will result in a total of 12 cores (8+4) and 20 threads (16+4). The P-cores (Golden Cove) will operate at a base frequency of 3.6 GHz and a maximum boost frequency of up to 5.0 GHz with 1-2 active cores and 4.7 GHz with all-cores active while the E-cores (Gracemont) will operate at 3.8 GHz across 1-4 cores & up to 3.6 GHz when all cores are loaded. The CPU will feature 25 MB of L3 cache and TDP values are maintained at 125W (PL1) and 250W (PL2).

Before moving over to the performance metrics, it is stated that the Intel Core i9-12900K peaked at 250W in the AVX2 mode stress test while running at 108C temperatures. It looks like Intel has once again given away power efficiency and went with a brute-force approach to tackle AMD's Ryzen Zen 3 CPUs. It is also stated that there was some problem with Thermal Velocity Boost on the specific B660 motherboard and the max frequency that was achieved is 5.1 GHz (4.9 GHz P-Core & 3.7 GHz E-Core). The performance was evaluated in Windows 11 but the use of better BIOS & DDR5 DRAM would result in slightly better performance.

Intel Core i9-12900K Alder Lake CPU Power Consumption & Temperatures:

Older CPU Coolers Might Have Mounting & Pressure Distribution Issues With Intel’s Alder Lake Desktop CPUs

So coming to the benchmarks, we first have the CPU-z results where the Intel Core i9-12900K is 20% faster in single-threaded and almost on par with the AMD Ryzen 9 5950X. Remember that AMD's Ryzen 9 5950X has 33% higher threads than the Intel flagship. In Cinebench R20, the Alder Lake chip once again offers a 20% performance boost in a single-threaded and similar performance in the multi-threaded benchmarks.

This is a very good showcase of the performance that Intel's Alder Lake CPUs have to offer, especially in the single-threaded department however, those high temperatures and power numbers are something to worry about. The Intel Core i9-12900K is expected to hit retail at around $550 US which should make it $250 US cheaper than the MSRP of the Ryzen 9 5950X & the same MSRP of the Ryzen 9 5900X. It could turn out to be a compelling option but will require lots of high-end cooling and power equipment to handle it.

Intel's Alder Lake Desktop CPUs will feature both DDR5 and DDR4 memory controllers and 600-series motherboards will also come with DDR5/DDR4 specific options. High-end motherboards will retain DDR5 while the more mainstream offerings will open up DDR4 support too. The Intel Alder Lake CPU lineup is expected to launch in November along with the respective Z690 platform and DDR5 memory kits.

Intel 12th Gen Alder Lake Desktop CPU Specs "Rumored"

CPU NameP-Core CountE-Core CountTotal Core / ThreadP-Core Base / Boost (Max)P-Core Boost (All-Core)E-Core Base / BoostE-Core Boost (All-Core)CacheTDP (PL1)TDP (PL2)Expected (MSRP) Price
Core i9-12900K8816 / 243.2 / 5.3 GHz5.0 GHz (All Core)TBA / 3.9 GHz3.7 GHz (All Core)30 MB125W228W$599 US
Core i9-129008816 / 243.2 / 5.2 GHz4.9 GHz (All Core)TBATBA30 MB65W~200W$509 US
Core i9-12900T8816 / 24TBA / 4.9 GHzTBATBATBA30 MB35WTBATBA
Core i7-12700K8412 / 203.6 / 5.0 GHz4.7 GHz (All Core)TBA / 3.8 GHz3.6 GHz (All Core)25 MB125W228W$429 US
Core i7-127008412 / 203.6 / 4.9 GHz4.6 GHz (All Core)TBATBA25 MB65W~200W$359 US
Core i7-12700T8412 / 20TBA / 4.7 GHzTBATBATBA25 MB35WTBATBA
Core i5-12600K6410 / 163.7 / 4.9 GHz4.5 GHz (All Core)TBA / 3.6 GHz3.4 GHz (All Core)20 MB125W228W$279 US
Core i5-12600606 / 123.7 / 4.8 GHz4.4GHz (All Core)TBATBA18 MB65W~200W$249 US
Core i5-12600T606 / 12TBA / 4.6 GHzTBATBATBA18 MB35WTBATBA
Core i5-12500T606 / 12TBA / 4.4 GHzTBATBATBA18 MB35WTBATBA
Core i5-12400606 / 12TBATBATBATBA18 MB65W~200W$203 US
Core i5-12400T606 / 12TBA / 4.2 GHzTBATBATBA18 MB35WTBATBA
Core i3-12200T404 / 8TBA / 4.2 GHzTBATBATBA12 MB35WTBATBA
Core i3-12100T404 / 8TBA / 4.1 GHzTBATBATBA12 MB35WTBATBA

Products mentioned in this post

Core i9-10900K
Core i9-10900K
USD 787.84
Core i9-11900K
Core i9-11900K
USD 544.89
Ryzen 9 3900X
Ryzen 9 3900X
USD 413

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