Intel Core i9-12900K ‘Alder Lake’ 16 Core Flagship CPU Up To 25% Faster Than AMD Ryzen 9 5950X ‘Zen 3’, Rumor Alleges

Intel Core i9-12900K Alder Lake 'QS' 16 Core CPU Selling For $1250 US, B660 Motherboard For $1150 US In China

Alleged performance benchmarks of Intel's Core i9-12900K Alder Lake flagship CPU have leaked out and it looks like AMD's Ryzen 5000 chips are in for a massive beating. Benchmarks shared by OneRaichu show how well the CPU performs in the Cinebench R20 test making it easy for us to do a comparison between existing Intel and AMD CPUs.

Intel Core i9-12900K 16 Core Alder Lake CPU Benchmarks Leaked, Allegedly Knocks Out AMD's Fastest Ryzen 5000 'Vermeer' Chip

The Intel Core i9-12900K that was tested is allegedly a QS 'Qualifaction Sample' chip and hence, the performance stated here may not be final as there are certain firmware updates along with the OS-specific optimizations needed to get the full potential out of the Alder Lake's hybrid architecture. It looks like the performance was measured on a very early test setup which featured a liquid cooler though other specifications such as memory and motherboard haven't been mentioned. It is likely that this chip is part of the recent inventory that was sold in the back-channel market as reported here.

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Core i9-12900K 16 Core / 24 Thread Desktop CPU Specifications

The Intel Core i9-12900K will be the flagship chip in the 12th Gen Alder Lake Desktop CPU lineup. It will feature 8 Golden Cove cores and 8 Gracemont cores for a total of 16 cores (8+8) and 24 threads (16+8). The P-cores (Golden Cove) will operate at a maximum boost frequency of up to 5.3 GHz with 1-2 active cores and 5.0 GHz with all-cores active while the E-cores (Gracemont) will operate at 3.90 GHz across 1-4 cores and up to 3.7 GHz when all cores are loaded. The CPU will feature 30 MB of L3 cache and TDP values are maintained at 125W (PL1) and 228W (PL2).

Intel 12th Gen Alder Lake Desktop CPU Specs

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)L3 CacheTDP (PL1)TDP (PL2)Expected (MSRP) Price
Core i9-12900KS8816 / 243.4 / 5.5 GHz5.2 GHz2.4 / 3.9 GHz3.7 GHz30 MB150W260W$739 US
Core i9-12900K8816 / 243.2 / 5.2 GHz5.0 GHz2.4 / 3.9 GHz3.7 GHz30 MB125W241W$599 US
Core i9-129008816 / 242.4 / 5.1 GHzTBA1.8 / 3.8 GHzTBA30 MB65W202W$489 US
$464 US (F)
Core i9-12900T8816 / 241.4 / 4.9 GHzTBA1.0 / 3.6 GHzTBA30 MB35W106W$489 US
Core i7-12700K8412 / 203.6 / 5.0 GHz4.7 GHz2.7 / 3.8 GHz3.6 GHz25 MB125W190W$419 US
Core i7-127008412 / 202.1 / 4.9 GHzTBA1.6 / 3.6 GHzTBA25 MB65W180W$339 US
$314 US (F)
Core i7-12700T8412 / 201.4 / 4.7 GHzTBA1.0 / 3.4 GHzTBA25 MB35W99W$339 US
Core i5-12600K6410 / 163.7 / 4.9 GHz4.5 GHz2.8 / 3.6 GHz3.4 GHz20 MB125W150W$299 US
Core i5-12600606 / 123.3 / 4.8 GHz4.4 GHzN/AN/A18 MB65W117W$223 US
Core i5-12600T606 / 122.1 / 4.6 GHzTBAN/AN/A18 MB65W74W$223 US
Core i5-12490P606 / 123.0 / 4.6 GHzTBAN/AN/A20 MB65W74W~$250 US
Core i5-12500606 / 123.0 / 4.6 GHzTBAN/AN/A18 MB65W117W$202 US
Core i5-12500T606 / 122.0 / 4.4 GHzTBAN/AN/A18 MB35W74W$202 US
Core i5-12400606 / 122.5 / 4.4 GHz4.0 GHzN/AN/A18 MB65W117W$192 US
$167 US (F)
Core i5-12400T606 / 121.8 / 4.2 GHzTBAN/AN/A18 MB35W74W$192 US
Core i3-12300404 / 83.5 / 4.4 GHzTBAN/AN/A12 MB60W89W$143 US
Core i3-12300T404 / 82.3 / 4.2 GHzTBAN/AN/A12 MB35W69W$143 US
Core i3-12100404 / 83.3 / 4.3 GHzTBAN/AN/A12 MB60W
58W (F)
89W$122 US
$97 US (F)
Core i3-12100T404 / 82.2 / 4.1 GHzTBAN/AN/A12 MB35W69W$122 US
Intel Pentium Gold G7400202 / 43.7 GHzN/AN/AN/A6 MB46WN/A$64 US
Intel Pentium Gold G7400T202 / 43.1 GHzN/AN/AN/A6 MB35WN/A$64 US
Intel Celeron G6900202 / 23.4 GHzN/AN/AN/A4 MB46WN/A$42 US
Intel Celeron G6900T202 / 22.8 GHzN/AN/AN/A4 MB35WN/A$42 US

Core i9-12900K 16 Core / 24 Thread Desktop CPU Benchmarks

Coming to the benchmarks, the Intel Core i9-12900K 16 Core CPU scores more than 810 points in single-core and more than 11,600 points in the multi-core tests within Cinebench R20. This easily makes it the fastest mainstream desktop CPU as it beats the AMD Ryzen 9 5950X by 25% in single and 11% in multi-core tests. Once again, do note that this is early performance and final numbers might further improve.

Following is the comparison chart:

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Intel Core i9-12900K 'Rumored' Cinebench R20 Single-Core Performance Benchmark
Cinebench R20 (Single-Core)
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Intel Core i9-12900K
AMD Ryzen 9 5950X
Intel Core i9-11900K
AMD Ryzen 9 5900X
AMD Ryzen 7 5800X
Intel Core i9-10900K
Intel Core i9-12900K 'Rumored' Cinebench R20 Multi-Core Performance Benchmark
Cinebench R20 (Multi-Core)
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Intel Core i9-12900K
AMD Ryzen 9 5950X
AMD Ryzen 9 5900X
Intel Core i9-10900K
Intel Core i9-11900K
AMD Ryzen 7 5800X

While the Intel Alder Lake Desktop CPUs will be competing against AMD's Ryzen 5000 CPUs for a while, they are going to be challenged by the new Zen 3 Ryzen Desktop CPUs early next year that will adopt 3D V-Cache which on average improves performance in games by 15%. Now games & synthetic benchmarks like Cinebench work very differently so it looks like Intel may hold the CPU performance throne for a while until Zen 4 arrives in the form of Raphael by the end of 2022.

The Intel Alder Lake Desktop CPUs are expected to launch in Q4 2021 and will be the first mainstream consumer platform to utilize PCIe5.0 and DDR5 technologies along with a new hybrid architecture approach, something that Microsoft has optimized for its Windows 11 operating system.

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