[Hardware] Intel 12th-Gen Alder Lake Release Date, Benchmarks, Specifications, and All We Know

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Intel's 12th-Gen Alder Lake chip will bring the company's hybrid architecture, which combines a mix of larger high-performance cores paired with smaller high-efficiency cores, to desktop x86 PCs for the first time. That represents a massive strategic shift as Intel looks to regain the uncontested performance lead against AMD's Ryzen 5000 series processors. AMD's Zen 3 architecture has taken the lead in our Best CPUs and CPU Benchmarks hierarchy, partly on the strength of their higher core counts. That's not to mention Apple's M1 processors that feature a similar hybrid design and come with explosive performance improvements of their own.

Intel's Alder Lake brings disruptive new architectures and reportedly supports features like PCIe 5.0 and DDR5 that leapfrog AMD and Apple in connectivity technology, but the new chips come with significant risks. It all starts with a new way of thinking, at least as far as x86 chips are concerned, of pairing high-performance and high-efficiency cores within a single chip. That well-traveled design philosophy powers billions of Arm chips, often referred to as Big.Little (Intel calls its implementation Big-Bigger), but it's a first for x86 desktop PCs.

Intel has confirmed that its Golden Cove architecture powers Alder Lake's 'big' high-performance cores, while the 'small' Atom efficiency cores come with the Gracemont architecture, making for a dizzying number of possible processor configurations. Intel will etch the cores on its 10nm Enhanced SuperFin process, marking the company's first truly new node for the desktop since 14nm debuted six long years ago.

As with the launch of any new processor, Intel has a lot riding on Alder Lake. However, the move to a hybrid architecture is unquestionably riskier than prior technology transitions because it requires operating system and software optimizations to achieve maximum performance and efficiency. It's unclear how unoptimized code will impact performance.

In either case, Intel is going all-in: Intel will reunify its desktop and mobile lines with Alder Lake, and we could even see the design come to the company's high-end desktop (HEDT) lineup. Intel has even listed -N variants for the educational (Chromebooks) segment, indicating that Alder Lake will span its entire stack of chips. 

Intel might have a few tricks up its sleeve, though. Intel paved the way for hybrid x86 designs with its Lakefield chips, the first such chips to come to market, and established a beachhead in terms of both Windows and software support. Lakefield really wasn't a performance stunner, though, due to a focus on lower-end mobile devices where power efficiency is key. In contrast, Intel says it will tune Alder Lake for high-performance, a must for desktop PCs and high-end notebooks. There are also signs that some models will come with only the big cores active, which should perform exceedingly well in gaming.

Meanwhile, Apple's potent M1 processors with their Arm-based design have brought a step function improvement in both performance and power consumption over competing x86 chips. Much of that success comes from Arm's long-standing support for hybrid architectures and the requisite software optimizations. Comparatively, Intel's efforts to enable the same tightly-knit level of support are still in the opening stages.

Potent adversaries challenge Intel on both sides. Apple's M1 processors have set a high bar for hybrid designs, outperforming all other processors in their class with the promise of more powerful designs to come. Meanwhile, AMD's Ryzen 5000 chips have taken the lead in every metric that matters over Intel's aging Skylake derivatives.Intel certainly needs a come-from-behind design to thoroughly unseat its competitors, swinging the tables back in its favor like the Conroe chips did back in 2006 when the Core architecture debuted with a ~40% performance advantage that cemented Intel's dominance for a decade. Intel's Raja Koduri has already likened the transition to Alder Lake with the debut of Core, suggesting that Alder Lake could indeed be a Conroe-esque moment.

In the meantime, Intel's Rocket Lake will arrive later this month, and all signs point to the new chips overtaking AMD in single-threaded performance. However, they'll still trail in multi-core workloads due to Rocket Lake's maximum of eight cores, while AMD has 16-core models for the mainstream desktop. That makes Alder Lake exceedingly important as Intel looks to regain its performance lead in the desktop PC and laptop markets.

While Intel hasn't shared many of the details on the new chip, plenty of unofficial details have come to light over the last few months, giving us a broad indication of Intel's vision for the future. Let's dive in.

Intel's 12th-Gen Alder Lake At a Glance
Qualification and production in the second half of 2021
Hybrid x86 design with a mix of big and small cores (Golden Cove/Gracemont)
10nm Enhanced SuperFin process
LGA1700 socket requires new motherboards
PCIe 5.0 and DDR5 support rumored
Four variants: -S for desktop PCs, -P for mobile, -M for low-power devices, -L Atom replacement, -N educational (probably Chromebooks)
Gen12 Xe integrated graphics
New hardware-guided operating system scheduler tuned for high performanceIntel hasn't given a specific date for Alder Lake's debut, but it has said that the chips will be validated for production for desktop PCs and notebooks with the volume production ramp beginning in the second half of the year. That means the first salvo of chips could land in late 2021, though it might also end up being early 2022. Given the slew of benchmark submissions and operating system patches we've seen, early silicon is obviously already in the hands of OEMs and various ecosystem partners.

Intel and its partners also have plenty of incentive to get the new platform and CPUs out as soon as possible, and we could have a similar situation to 2015's short-lived Broadwell desktop CPUs that were almost immediately replaced by Skylake. Rocket Lake seems competitive on performance, but the existing Comet Lake chips (e.g. i9-10900K) already use a lot of power, and i9-11900K doesn't look to change that. With 10nm Enhanced SuperFIN, Intel could dramatically cut power requirements while improving performance.

Intel Alder Lake Specifications and Families
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Intel hasn't released the official specifications of the Alder Lake processors, but a recent update to the SiSoft Sandra benchmark software, along with listings to the open-source Coreboot (a lightweight motherboard firmware option), have given us plenty of clues to work with.

The Coreboot listing outlines various combinations of the big and little cores in different chip models, with some models even using only the larger cores (possibly for high-performance gaming models). The information suggests four configurations with -S, -P, -N, and -M designators, and an -L variant has also emerged:

Alder Lake-S: Desktop PCs (Both LGA and BGA models)
Alder Lake-P: High-performance notebooks
Alder Lake-M: Low-power devices
Alder Lake-L: Listed as "Small Core" Processors (Atom)
Alder Lake-N: Educational and consumer client (Chromebook-class devices)