Hacker News

Top stories

Live mirror
30 storiesupdated just nowView source snapshot
  1. GPT-6 Sol and Luna(openai.com)
    425comments
  2. Claude Opus 5.5(anthropic.com)
    645comments
  3. OpenAI GPT–6 Astra breaks Enigma message that has resisted solution since 2005(cryptocellar.org)
    338comments
  4. 'We hacked the FBI:' Hackers say they have data on all FBI employees(404media.co)
    37comments
  5. SAML: A Fractal of Bad Design(trailofbits.com)
    21comments
  6. Obscura: The first VPN that can't log your activity(obscura.com)
    33comments
  7. Claude Opus 5.5 Intelligence, Performance and Price Analysis (Max)(artificialanalysis.ai)
    49comments
  8. WordPress: Unauthenticated path traversal leading to conditional RCE(github.com/wordpress)
    54comments
  9. Unreal Agent(unreallabs.ai)
    38comments
  10. What California is learning from solar panels built over irrigation canals(kqed.org)
    4comments
  11. Native apps written in TypeScript and CSS(github.com/geastack)
    6comments
  12. Explaining to business people why building software is still hard(manager.dev)
    31comments
  13. Did OpenAI solve the wrong Navier-Stokes problem?(scientificamerican.com)
    5comments
  14. An update on how we confirm your age group on Discord(discord.com)
    5comments
  15. OpenAI is well positioned to fast-follow Jev(arcturus-labs.com)
    166comments
  16. Show HN: Training a model to identify AI web content from structure alone(arxiv.org)
    4comments
  17. MUNI Heritage Weekend in San Francisco(lawrence.lu)
    30comments
  18. Show HN: JevBench, a reproducible benchmark for typed decision models(benchmarkheaven.com)
    1comments
  19. Markdown in /src(htmx.org)
    12comments
  20. How did AMD Ryzen get 50% faster in two years?(lemire.me)
    19comments
  21. Overreliance on AI contributed to missile strike on Iran school – Pentagon(bloomberg.com)
    114comments
  22. 16-bit Intel 8088 chip (c. 1985)(allpoetry.com)
    12comments
  23. The JavaScript Midlife Crisis(maroun-baydoun.com)
    3comments
  24. A Faster Shortest Path Algorithm(vals.ai)
    4comments
  25. Launch HN: Coverage Cat (YC S22) – Umbrella insurance via your personal agent(coveragecat.com)
    19comments
  26. George Lucas Returns to Earth, Bearing Gifts(commonedge.org)
    14comments
  27. There's a high chance of devices being sold with GrapheneOS preinstalled in 2027(grapheneos.social)
    84comments
  28. Apple has added persistent 'ads' to iOS, and it's driving users crazy(techradar.com)
    385comments
  29. People hooked on vapes try a new way to quit: cigarettes(bloomberg.com)
    38comments
  30. Writing Rust code that's fast by asking agents to make the code faster(minimaxir.com)
    46comments

How did AMD Ryzen get 50% faster in two years?

111 pointsby 4d agolemire.me
19 comments
4d agoHN ↗

It would have been funny if the "how" had been dropped to end with "Did AMD Ryzen get 50% faster in two years?"

4d agoHN ↗

Am I missing something? Max boost went up by only 15% but the base frequency went up 38%

Better thermals maybe? Less throttling?

3d agoHN ↗

its manufactured on a smaller node so probably has more leeway for higher freq on all core loads.

I’d also be weary of single core scores,Geekbench is known to be favoring specialized instruction sets like AVX or encryption extensions more and more as the version number progresses. Though I don’t know if GB6 is also like this I wouldn’t be surprised it it was caused by it.

3d agoHN ↗

>Better thermals maybe?

One of the biggest improvements to the Ryzen 7 X3D series (e.g. 9800) is that the caches have been moved from one side of the die (to the other), which places the major heat source closer to the heat sinks.

SO yes, less heat throttling.

3d agoHN ↗

Smaller node size means less voltage.

Power is heat, and the amount dissipated is the square of the voltage- a processor that is reliable at less voltage means you can get a lot more frequency in the same heat envelope.

Yet reliability decreases as frequency goes up, and that can only be stabilized by adding more voltage- so the faster you run the processor, the more voltage you ultimately have to give it, so the power/heat produced grows exponentially until you can't get rid of the heat fast enough (at which point your only option is to actively cool the chip).

This is overclocking 101.

Note that classic overclocking was viable because of arbitrage- buying a processor, pushing it to the point it got too hot, and stress-testing it at that temperature to ensure reliable operation. Processor manufacturers all do that formal verification at the factory now as they'd be uncompetitive otherwise, especially in laptops.

3d agoHN ↗

As ProllyInfamous mentioned; bringing the cores to the top helped reduce heat, which allows them to boost higher for longer periods then the 7800x3d.

3d agoHN ↗

2 years sounds very fast. It seems to be because the 3d cache SKUs of each generation were released at different stages. The Zen 3 one was a later variant.

First zen 3 November 5, 2020 with desktop processors. First desktop Ryzen 9000 processors on August 8, 2024. So the generations were about 4 years apart.

3d agoHN ↗

I suspect the improvements are even more dramatic going from Zen 1 through to Zen 5. AMD has really hit the jackpot with how scalable the Ryzen CPU is considering how they're able to improve the performance from year to year. This is a stark difference to the FX series during the 2010s, which saw very small YoY performance increases by comparison. Ryzen really is AMD's equivalent to what Nehalem/Core was for Intel back in the mid 2000s.

3d agoHN ↗

They never shipped the zen 5 epyc big cache chip (e.g. 9685X). :( I'd hoped they pulled it to produce a HBM integrated chip instead, but they didn't do that either.

3m agoHN ↗

I imagine they didn't want to cannibalize upcoming Zen 6 which will have the 3d cache

32m agoHN ↗

The AMD Ryzen 9 9950X3D / EPYC 4585PX is a beast for 99% of compute workloads.

It has the highest base clock of any modern AMD chip (4.3 GHz), plus 16-cores, which is already more than most workloads need.

Can’t wait to see what Zen 6 brings early next year. Rumors say 24-cores and another big jump in single-core performance.

30m agoHN ↗

I looked at game benchmarks, and sometimes 5600 or 5600X were fastest. With all X3D processors so fast that I would not decide to upgrade above 5700X3D or anything cheaper. Now, with current RAM pricing, getting a X3D CPU with 90+ MB L3 Cache seams the way to go instead of doing a DDR4 -> DDR5 leap.

All stated for gaming, that is.

10m agoHN ↗

I still love my 5800X3D. Drop-in upgrade from a 3700X so I kept my board, RAM, cooler, everything.

21m agoHN ↗

Compound this with Linux users seeing a ~8% gain (and some very big gains here and there) on performance from ongoing kernel improvements too! https://www.phoronix.com/review/linux-618-73-amd-epyc

This only goes back one year, to Linux 6.18. Wins would be even bigger if we go back another year. Also, this isn't tracking any of the rest of the improvements in userland: it's just the kernel. Some newer GCC, and upcoming new x86-64v3 targets will all have some pretty nice wins too.

Great days to be on open source. And it only ever gets better.

19m agoHN ↗

I love my frameworks strix halo box. 16 zen 5 cores with way more memory bandwidth than they should have for a desktop. Only missing the x3d cache

12m agoHN ↗

Is this what's helping drive their stock price to the moon?

9m agoHN ↗

Serious question with 1GB L3 isn't it theoretically possible to boot a full Linux without ram?

6m agoHN ↗

I'm not sure focusing on just 3 processors is enough to claim that Ryzen got 50% faster. There were already other, faster Ryzen processors available without the additional cache. The extra cache was a very new thing (and very temperature sensitive), so it makes sense that they start carefully and then get a lot of improvement quickly). And the 5800x3d was for an older chipset, with all the limitations that come with that.