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AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

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221–230 of 297 posts

Re: AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

#221
post #64

Earlier quoted context omitted.

Ah right; that's confusing! Seems that the AMD and Intel chips are much faster though, consistent with other benchmarks. Speed vs. $ is of course a different story than pure speed; kinda hard to capture in a number I guess. Most Go projects compile more than fast enough even on my 7 year old i5, although there are exceptions (mostly crummy hyper-overengineered projects).

I think it depends on what you do. If you write a database in Go, there is no problem with 5min compile time. If you write a web app, 10 sec compile times are already annoying.

5 minute compile time is annoying no matter what project you are trying to compile. Thankfully most every golang package I compile, takes less than 2-3 seconds.

Re: AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

#222
post #198

Earlier quoted context omitted.

Yes - with more and more users moving to laptops and wanting a longer battery life, raw peak performance hasn't moved much in a decade. A decade ago, Steam's hardware survey said 8GB was the most popular amount of RAM [1] and today, the latest $1600 Macbook Pro comes with.... 8GB of RAM. In some ways that's been a good thing - it used to be that software got more and more featureful/bloated and you needed a new compu…

> raw peak performance hasn't moved much in a decade. In general, CPU clock speeds stagnated about 20 years ago because we hit a power wall. In 1985, the state of the art was maybe 15-20MHz; in 1995, that was 300-500MHz; in 2005, we hit about 3GHz and we've made incremental progress from there. It turns out that you can only switch voltages across transistors so many times a second before you melt down the physical c…

> That's an unfair comparison.

When I visit retailers' websites, the 8GB product category seems to be the one with the most products on offer. Dell, Asus, Acer, HP and Lenovo are also more than happy to sell you a laptop with 8GB of RAM, today. Although I would agree don't charge $1600 and call them "Pro"

So 8GB machines are still around, and not just in the throwaway $200 laptop segment.

I would agree with you that the 2024 Steam hardware survey shows a plurality of users with 16GB, whereas the 2014 survey said 8GB, so progress hasn't entirely stopped. But compared to the glory days of Moore's Law, a doubling over 10 years is not much.

Re: AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

#223
post #144
post #133

Earlier quoted context omitted.

+35% is for a single cherry-picked Geekbench AES subtest. AMD did not show the overall Geekbench improvement.

And in a way same applies to M3 vs M4 Geekbench scores. A few new instructions were added. Aside from those it's nowhere near the 25% improvement there either.

Without SME, M4 still scores in the 3800s which is still significantly higher than Zen5's projection. By the way, M4 is in a 5.1mm fanless tablet.

Zen3 to Zen4 had an even larger increase in Object Detection score in GB6. From Zen3 to Zen4, Object Detection increased by 2.5x due to AVX512 which is more than M3 to M4's 2x increase.

Source: https://browser.geekbench.com/v6/cpu/compare/6098657?baselin...

Re: AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

#224
post #207
post #153

Earlier quoted context omitted.

At what point do these become competitive with GPUs for AI cost wise if GPUs retain their nutty price premium?

I’ve been running some LLMs on my 5600x and 5700g cpus, and the performance is… ok but not great. Token generation is about “reading out loud” pace for the 7&13 B models. I also encounter occasional system crashes that I haven’t diagnosed yet, possibly due to high RAM utilization, but also possibly just power/thermal management issues. A 50% speed boost would probably make the CPU option a lot more viable for home ch…

You could put an 8700G in the same socket. The CPU isn't much faster but it has the new NPU for AI. I'm thinking about this upgrade to my 2400G but might want to wait for the new socket and DDR5.

Re: AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

#225
post #207
post #153

Earlier quoted context omitted.

At what point do these become competitive with GPUs for AI cost wise if GPUs retain their nutty price premium?

I’ve been running some LLMs on my 5600x and 5700g cpus, and the performance is… ok but not great. Token generation is about “reading out loud” pace for the 7&13 B models. I also encounter occasional system crashes that I haven’t diagnosed yet, possibly due to high RAM utilization, but also possibly just power/thermal management issues. A 50% speed boost would probably make the CPU option a lot more viable for home ch…

I looked at upgrading my existing AMD based system's ram for this purpose, but found out my mobo/cpu only supports 128gb of ram. Lots, but not as much as I had hoped I could shove in there.

Re: AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

#226

Do all CPUs and GPUs these days involve components made by TSMC? If so, is this unique - that a whole industry of relies on one company?

This is probably a lot more common than you might think. How much of an "entire industry", or indeed industry as a whole, relies on Microsoft?

Re: AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

#227
post #220

Earlier quoted context omitted.

The people who think PCs are already fast enough don't buy CPUs every year. A 7950X in Eco mode is ridiculously capable for the power it pulls but that's less of a selling point.

I think there's a market for a 7950E with a specific binning for lower power rather than highest possible clocks.

Compared to Intel, AMD seems to bin their chips a lot less. Intel have their -T chips which would be nifty if Intel weren't so far behind in terms in terms of efficiency.

Re: AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

#228

15% IPC boost is mildly disappointing. It will be significantly slower in ST than M4, and even more so against the M4 Pro/Max.

I wouldn't be sure about that. Isn't apple silicon performance mostly benchmarked using Geekbench? AMD claims +35% IPC improvements in that specific benchmark, due to improvement in the AVX512 pipeline.

Apple themselves have around 10% IPC uplift with M4 too.

The real issue is that most code people run doesn't use very much SIMD and even less uses AVX-512.

Re: AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

#229
post #200

Earlier quoted context omitted.

AMD used to give decently accurate TDP, but Intel started giving unrealistically optimistic TDP ratings, so AMD joined the game. Their TDP is more of an aspiration than a reality (ironically, Intel seems to have gotten more accurate with their new base and turbo power ratings). 9700x runs 100MHz higher on the same process as the 7700x. If they are actually running at full speed, I don't see how 9700x could possibly b…

I know AMD has joined the “fudging the TDP numbers” game but you should still be able to more or less compare TDP across their own products.

For the same node, you aren't cutting power by 40% while increasing clockspeeds. At best, they could be aggressively cutting clockspeeds, but that means lower overall performance.

Marketing seems a more likely reason (and I don't believe it would be the first time either).

Re: AMD Unveils Ryzen 9000 CPUs for Desktop, Zen 5

#230
post #50

Earlier quoted context omitted.

wait till china invades

As long as Biden wins the election, they won't. Because the US will defend Taiwan.

Your crystal ball is intriguing, do you have a whitepaper I can check out to understand the underlying mechanics?
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