AMD Strikes Back: Zen 5 CPU Architecture Changes & Chipset Differences (X870E vs. X870, B850, B840)

AMD's Zen 5 architecture brings new CPUs and new chipsets. In this video, we'll talk about the AMD chipset differences (X870E vs. X870, X670E, X670, B850, & B840) alongside some of the changes to its CPUs that AMD detailed to press in a recent briefing. We previously talked about the overclocking capabilities of the R9 9950X, which you can find linked below.



TIMESTAMPS

00:00 - AMD Zen 5 Announcements
01:49 - 9950X, 9900X, 9700X, 9600X Specs
05:15 - AMD Redesigning Zen
09:38 - Performance Claims
12:38 - AMD Engineering Discussion Panel
21:18 - Chipset Comparison (X870E vs. X870, B850, & B840)

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Steve Burke: Host, Additional Writing
Jeremy Clayton: Writing
Vitalii Makhnovets: Camera
Tim Phetdara: Editing

[sparkymotive]

Huge opportunity to release a heavily-binned 9950X and call it the 9999X

[zivzulander]

Fun fact: the collective noun for a group of Steves is a "nexus" of Steves

[benjaminoechsli]

17:02 I'd gladly accept a platform strategy of "the socket lasts as long as the RAM generation".

[ZylonFPV]

“AMD X870E. The E stands for extreme. The X also probably stands for extreme” 😂
Well, at least they didn’t add an Ai in there too…

[JosiahBradley]

Being able to add full 512bit AVX without the downsides of well, literally everything, is an amazing engineering feat.

[VincentGroenewold]

Refreshing to see someone on stage that acts normal about new tech from a company.

[thespicyswede]

Introducing a brand new PCIe 3.0 motherboard in mid-2024 is wild. Kinda slimy to call it B840 when it's very clear that it should be called A830 or something.

[chaddesrosiers]

Economy core... what a great engineer burn.

[kernelramdisk]

05:54 I love how he completely ignored the "AI acceleration" bs 😆

[brotherwulfgar]

Their follow-through for the AM4 platform has truly been astonishing. I do hope such a commitment can be kept similarly with AM5

[keyboard_g]

Not one reviewer has dropped an “Its over 9000” reference.

[saberknight]

The B840 chipset name seems misleading, as the feature set in some spots places below the A620 chipset.

[budthecyborg]

For my entire life prior to AM5 every CPU upgrade was an entire new build, and forget the component costs it takes an entire weekend to strip out the motherboard and re-manage all the cables.
Upgrading to Zen5 this fall is going to feel sooo good, four screws, plop in the chip, done.

[thorium]

I’m only interested in how much the prices for the Ryzen 7000 series will drop for CPUs and 600 series motherboards. Cheers from Australia!

[dirgmusic]

For my audio production usecase i'm most excited about doubling the instruction throughput since most digital audio workstations rely directly on AVX2 instructions so this should, at least in theory, make them incredible for low latency audio processing. These seem like they're going to be absolute monsters for creative work.

[KawazoeMasahiro]

About 15:35 where you mentioned that AMD and Intel architectures both have challenges when it comes to scheduling, I think that you missed the point Macri was trying to make. There is a massive difference between misscheduling on a 7900x3d and a 14900k. In the first case, you might schedule a clock-friendly task on a high-cache core or vice versa and lose a bit of performance. In the second case, if you schedule an AVX workload on an efficiency core, you get a kernel panic / BSOD. This means you can run older OSes on an x3d CPU. It might not be as good as it can be, but as a user, it will work, and as a dev, you don't have to backport complicated scheduling algorithms to older kernels still in long term support. On the hand, you absolutely have to do this for intel CPUs. They need additional dev time, and that needs to happen before release; and potentially in secret. This is why the initial launch of p/e cores was such a mess. Some apps would randomly crash on Windows, which got support early, and Linux simply didn't work for weeks because it would've leaked the IP.

So, AMD doesn't _require_ special drivers, but they do benefit from them, and drivers are the work of the hardware provider putting the onus of producing and maintaining this code on AMD. Intel requires a special scheduler, which is the responsibility of every OS provider and an additional burden on the communit in the case of Linux.

[Real]

Strikes back against who? Themselves?!

[DaveImagery]

Didn't understand a word of that, but great work Steve.

[pxl_shootr]

I just want a 12 core single CCD X3D CPU :(

[fourwheelerjock]

I'll be getting a 9950x most likely. But that fact we will have to wait a month or 2 for x870e motherboards is ridiculous