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Computer architecture & CPUs: videos Hacker News recommends
Computer architecture: CPU design, pipelines, caches, RISC-V, ARM, x86, GPUs, memory, branch prediction, supercomputers, mainframes, benchmarks, Moore's law. Below: every video in this topic that at least three HN users linked with real commentary, in at least three different months (52 talks, 21 explainers, 20 demos), best-scored first, with the comments on each video page.
- HN repeatedly recommends the series it launched as the best way to understand how a CPU works, praised for Eater's clear teaching.
- TNMoC lecture recommended in 11 different months by 11 HN users, 2021–2026HN calls it mandatory viewing on the AGC, praising the speaker's enthusiasm and the clear account of restartable, robust software design.
- HN repeatedly recommends it as the best hands-on way to understand how a CPU and a computer work from first principles.
- The Qualcomm Institute talk recommended in 10 different months by 12 HN users, 2010–2024Recommended for years as the best technical introduction to memristors from the person who found the physical device.
- HN treats it as the standard starting point for Game Boy emulator writers and homebrew developers, with several calling it one of their favorite talks.
- HN recommends it, long as it is, as an eye-opening rant on software complexity and why systems became so complicated.
- USENIX ATC '21/OSDI '21 Joint Keynote Address-It's Time for Operating Systems to Rediscover HardwareRepeatedly recommended as a revelatory talk on how little control the main OS has over modern SoCs and PCs.
- HN cites it whenever chip architecture, Moore's Law or CPU design comes up, as an unusually deep and accessible view from a top designer.
- Repeatedly called the best and most comprehensive AGC talk, with commenters rewatching it and treating it as foundational computer architecture learning.
- UC Berkeley EECS talk recommended in 8 different months by 7 HN users, 2019–2025The go-to citation in Moore's Law threads, a convincing counterargument from a top CPU designer.
- It is the favorite recommendation for understanding Moore's minimalist, low-power multi-core designs and stack machines.
- HN fans hold it up as a favorite among his videos and an example of gloriously bonkers technical art, and cite it in floating-point discussions.
- Frequently recommended as the clearest plain-language explanation of what a computer fundamentally is, with at least one commenter saying it changed how they think about programming.
- HN recommends it as a clever, entertaining and easy-to-follow talk on finding hidden x86 instructions with the Sandsifter tool.
- Platform Security Summit talk recommended in 8 different months by 8 HN users, 2019–2026HN points to it constantly in console, DRM and hardware-security threads as the authoritative account of Xbox One's threat model.
- HN people recommend it to anyone wanting a practical sense of what CPUs can really do and why abstraction layers cost so much performance.
- HN treats it as the classic go-to for learning atomics and memory ordering, recommended over books.
- HN commenters recommend it as a clear, comprehensive explanation of USB signaling and keyboard polling.
- HN readers recommend it as the best introduction to robust-first computing, where randomness and fault tolerance are built into the architecture.
- HN recommends it for showing how old developers exploited the smeary nature of composite signals and what CGA really looked like on period hardware.
- der8auer EN documentary recommended in 6 different months by 6 HN users, 2021–2025HN points to it whenever Hetzner comes up, as the best look inside their unusual, semi-custom and low-cost data center setup.
- HN treats Cliff Click's talks as an excellent source on JVMs, garbage collection and hardware-assisted Java.
- HN points to it as the founders' own explanation of what Oxide is building and why, a frequent link whenever Oxide comes up.
- funbury lecture recommended in 5 different months by 5 HN users, 2020–2025HN uses it to illustrate physical latency limits and why performance and distance matter in computing.
- Treated as the accessible reference on analog computing for neural nets, especially the Mythic AI segment.
- insideHPC Report talk recommended in 5 different months by 5 HN users, 2015–2024HN points to it as evidence of SpaceX's serious simulation capability and as a showcase of GPU compute for CFD.
- Commenters recommend it as a clear, well-animated explanation of memory, especially for visual learners.
- nuACM talk recommended in 5 different months by 5 HN users, 2010–2017Recommended as a fascinating look at easy parallelism abstractions, though other commenters note the approach never beat sequential C by much.
- PlayStation talk recommended in 4 different months by 6 HN users, 2020–2023HN treats it as required viewing for understanding the PS5's SSD and architecture beyond raw specs.
- Robert Baruch tutorial recommended in 4 different months by 3 HN users, 2020–2021HN recommends the series as a practical introduction to nMigen and formal verification for CPU design.
- HN regulars treat Domas as a favorite hacker and bring this talk up in any discussion of CPU backdoors, hidden instruction sets or processor security.
- Recommended as the best presentation on how modern CPUs run code, and why speculative execution matters for performance.
- Association for Computing Machinery (ACM) lecture recommended in 3 different months by 2 HN users, 2018–2023HN repeatedly recommends it as the best overview of the past, present and future of chip performance after Moore's law.
- HN recommends it as a short, clear explanation of robust-first computing by its originator, and as a philosophy relevant to building with unreliable components like LLMs.
- TechTechPotato interview recommended in 3 different months by 3 HN users, 2022–2023HN recommends it as an interview dense with insight from Keller, worth hearing in full even for non-engineers.
- NOKIA Technology Center Wrocław talk recommended in 3 different months by 3 HN users, 2018–2023HN points to it as the go-to explanation of why memory layout beats pointer-chasing structures on real hardware.
- HN recommends it as an enlightening explanation of atomics, caches and memory ordering from a strong presenter.
- HN people treat it as the canonical C64 talk and rewatch Steil's 'Ultimate' series regularly.
- Recommended as the key video for understanding control logic and microcode.
- HN recommends it as a great walkthrough of chip reverse engineering and the story of Visual 6502.
- Matthias random stuff explainer recommended in 3 different months by 3 HN users, 2025Used as evidence that CPU speed for branchy, dependent code has improved only modestly in 15-20 years, so software optimization matters.
- Recommended as an accessible tour of modern mainframes that compares them sensibly to ordinary server setups.
- SiFive talk recommended in 3 different months by 3 HN users, 2021Recommended for explaining where the compiler ecosystem lacks standardization for accelerators and why efforts like MLIR and CIRCT matter.
- ssdawesome demo recommended in 3 different months by 3 HN users, 2009–2011HN passed it around in 2009 as a funny, impressive demo of SSD speed despite its marketing origin.
- Recommended as a stellar long-form interview with someone both very smart and wise, mined for CPU design insights.
- The Research and Applied AI Summit - RAAIS talk recommended in 3 different months by 3 HN users, 2017–2018HN points to it as a technical talk from a chip designer on why AI hardware should put memory close to compute and use async data transfers.
- HN recommends it as an in-depth, practical introduction to atomics and weak versus strong memory ordering, relevant to ARM and Rust as well as C++.
- Recommended as an accessible refresher on how modern hardware and caches affect software performance.
- Recommended as a clear, approachable explanation of how retro graphics hardware actually worked.
- Cathode Ray Dude - CRD documentary recommended in 3 different months by 3 HN users, 2025HN recommends it as an excellent history of the famous ABIT BP6 board.
- HN commenters call his x86 internals talks spectacular and mention them whenever low-level processor surprises come up.
- plgDavid explainer recommended in 3 different months by 3 HN users, 2021–2024Recommended in DX7 reverse-engineering threads as a look at the effort behind bit-accurate emulation.
- Cited in floating-point threads as the main introduction to posits and unums as an alternative to IEEE floats.
- AdoredTV commentary recommended in 3 different months by 3 HN users, 2017–2023Recommended as an overview of Intel's anti-competitive past and why it kept dominating despite AMD's competitive products.
- Geekerwan explainer recommended in 3 different months by 4 HN users, 2022–2023HN people cite it as detailed data on mobile SoC efficiency, sustained performance and ARM core efficiency curves.
- Recommended as the definitive retrospective on 3dfx, with first-hand stories about engineering hacks and design philosophy.
- Recommended as a fun, practical talk on why bit flips matter for security, and cited in ECC memory discussions.
- HN points to it as an entry into Ackley's indefinitely scalable computing project, with a network-switch demo recommended as the best place to start.
- HN commenters cite it as an informative talk from a leading researcher in reversible computing, mainly in threads on reversible computers and energy efficiency.
- RISC-V International talk recommended in 2 different months by 2 HN users, 2016–2020Cited as primary-source evidence that RISC-V code density is competitive with or better than ARM and x86.
- GreenArraysInc talk recommended in 2 different months by 2 HN users, 2013–2017HN recommends it as a window into Moore's minimalist CPU design and the GA144 chip, despite the slow pace.
- HN recommends it as a history and analysis of the end of scaling from a well-regarded systems speaker, and lists it among the best talks of 2019.
- hotchipsvideos talk recommended in 2 different months by 2 HN users, 2023–2025HN points to it for an insider view of why NVIDIA's AI gains came from design rather than process, and for data-movement power costs.
- HN people recommend Ben Eater's videos for easy, clear explanations of digital logic and building computers.
- Recommended as a wonderful overview of the AGC architecture, though one commenter found it uninspiring.
- Jeff Geerling interview recommended in 2 different months by 2 HN users, 2023HN recommends it to explain why Pi supply favored business customers during the shortage, straight from a founder.
- SHARE Association talk recommended in 2 different months by 2 HN users, 2018–2025HN commenters cite it as an entertaining example of a teenager buying, hosting and booting a real mainframe.
- Oxide Computer Company podcast episode recommended in 2 different months by 2 HN users, 2023–2025HN cites it as Oxide's own explanation of how they ship hardware as a startup and why they picked illumos.
- Dan Wood video recommended in 2 different months by 2 HN users, 2016–2019Recommended as a decent introduction to the Vampire accelerator and a cheaper way to modernize classic Amigas.
- Pointed to as a primary-source interview on Apple's architecture transitions, emulation and microcode work.
- Recommended as a simple, fun explanation of why floating point gives odd errors like 0.1 + 0.2.
- der8auer EN demo recommended in 2 different months by 1 HN user, 2023–2025Pointed to as a look at Hetzner's unusual semi-custom server hardware and cooling.
- Cited as evidence that Eco Mode gives large power savings for a small performance loss on Zen 4.
- Recommended in threads about SGI and vintage workstations as a good look at the hardware.
- HN commenters cite it for the claim that process scaling beyond 28nm is uneconomic and for dark silicon.
- HN points to it as coverage of an impressive 3D game port on very limited hardware.
- Pointed to as a clear visual reference for chip manufacturing steps.
- Used as a primary source for 6502 origins, pricing strategy and Commodore history.
- Recommended as the answer to why breadboard computers are worth building and why breadboards work at these speeds.
- It is linked in laptop thermal threads for a layman's overview of why Apple limits surface temperature and why the mod is not simple.
- Paul G. Allen School lecture recommended in 2 different months by 3 HN users, 2023–2024HN commenters cite it for NVIDIA's perspective on AI hardware efficiency, including logarithmic number formats and energy use.
- Retro Game Mechanics Explained explainer recommended in 2 different months by 2 HN users, 2022–2025Cited as the go-to demonstration of how hard and clever Atari 2600 graphics programming was.
- Megaprocessor demo recommended in 2 different months by 2 HN users, 2016–2024HN commenters link it as the easy way to see the giant home-built CPU without hammering the author's website.
- It is the go-to visual explanation of delay-line memory and early electronic calculators whenever the topic comes up.
- NC State lecture recommended in 1 different month by 1 HN user, 2014–2025HN points to it as an accessible, interesting talk on molecular dynamics and simulation-based drug discovery.
- Cited in hardware-trust and supply-chain threads as a concrete, startling demonstration of chip-level backdoors.
- Cited in discussions of open firmware and trust as a thorough reverse engineering of the PSP.
- Recommended in Intel ME threads as essential viewing on x86 trust and auxiliary processors.
- UC Berkeley Events talk recommended in 1 different month by 1 HN user, 2016–2026Cited as a rare first-hand account from Cray, loved for details like the aluminum machining invented to carry Freon through the frame.
- der8auer demo recommended in 1 different month by 1 HN user, 2020–2021HN cites it as visual evidence that nm node names are marketing labels and for its neat electron microscope comparison.
- TechTechPotato interview recommended in 1 different month by 1 HN user, 2022–2025HN commenters point to it as a primary source from the architect of Zen, for example on how little the ISA matters compared to microarchitecture.
- Matroid talk recommended in 1 different month by 1 HN user, 2020Cited in hardware threads as a Keller talk on the different ways of doing parallel processing.
- Commenters link it whenever bit flips, cosmic ray errors or unexplained computer glitches come up, as a good accessible explanation.
- Dodoid tutorial recommended in 1 different month by 1 HN user, 2018–2024Shared as a nostalgic tour of SGI hardware for people who remember that era.
- Mill Computing, Inc. lecture recommended in 1 different month by 1 HN user, 2015–2023Cited as the authoritative source on how Mill's VLIW-style compiler specializes code and differs from Itanium.
- HN cites it as data that too much thermal paste is mostly a myth and that too little is the real risk.
- pucitp demo recommended in 1 different month by 1 HN user, 2011–2020It is linked as the original short demonstration that keys can be pulled from RAM after shutdown.
- dancefan talk recommended in 1 different month by 1 HN user, 2017–2023It is the go-to primary source whenever HN discusses posits versus IEEE floats, valued for Kahan's sharp critique despite the poor audio.
- Cited as a firsthand account of 6502 origins and of how engineers were treated at Motorola and Commodore.
- Mill Computing, Inc. lecture recommended in 1 different month by 1 HN user, 2013–2023HN points to the Mill talks as an excellent, deep look at an unconventional CPU design, especially in threads on registers and instruction sets.
Showing the 100 best-scored of 134. Use search to find the rest.
Questions
What is the most recommended computer architecture & cpus video on Hacker News?
8-bit computer update by Ben Eater: HN repeatedly recommends the series it launched as the best way to understand how a CPU works, praised for Eater's clear teaching.
How is this computer architecture & cpus list ranked?
By HackerTube's score: the number of distinct months in which an HN comment recommended the video, plus half a point for every month with a strong recommendation. One viral thread counts less than steady recommendations over years.
Where do the videos come from?
From every Hacker News comment between 2007 and 2026 that linked a YouTube video, labeled by an AI model as a recommendation, a citation, a joke or a criticism. The list is published by HackerTube under ODC-By 1.0; this edition adds indexable pages and the comment context.