AMD to unveil Zen 4 CPUs at CES 2022

g67575 · 23 May 2022 at 19:01

Well, even a low/mid end Zen 4 CPU would be better than the 5950x for most tasks. At £500 a pop for a 5950x, I'd say hang on to your money.

r22snapper · 23 May 2022 at 19:09

robfosters said:
How long before we see gaming benchmarks?

Id like to know how much extra this would give me over my 3900X on MFS at 3440X1440. That’s literally my main interest

I play at the same resolution and have done this exact swap and am very happy. The 3900X didn't keep my 2080ti anywhere near 100% with a lot of frame rate dips. The X3D has it fully saturated at all times, I'd guess at an extra 10-15 fps but crucially for Flight Sim no noticeable stuttering or frame drops. I am now unlikely to upgrade my GPU which would have been my next move until I saw the results for the processor upgrade. I sold my 3900X for £180 as well which makes it a very decent upgrade for the price.

g67575 · 23 May 2022 at 19:12

Yeah, it will be interesting to see how much the L2 cache increases make to games, but it looks like the overall single threaded performance will be similar to Intel's Golden Cove cores. It does say >15% single threaded uplift, so maybe they are limited by clock speed increases here?

LePhuronn · 23 May 2022 at 19:16

Gerard said:
Remember when adored also claimed a few years back that radeon vii was only shown because they found a last second bug on rdna that prevented them from showing it. Just happened to have a totally different gpu knocking about just in case...

Radeon VII getting turned out in a hurry wasn't outside the realms of possibility. There was already a consumer-based Vega 20 project that was cancelled previously, so PCB design at least would've been on record somewhere, likely also a cooler as well. Wouldn't exactly be a Herculean task to get that PCB and cooler design out of the archive and drop existing MI50 dies onto it.

Gerard said:
...not to mention a company wouldn't dare show a gpu that was in an incredible flakey stage of development.

Well yeah, which is why RDNA1 wasn't shown.

LePhuronn · 23 May 2022 at 19:20

Toasty said:
Adored did this with 5.1Ghz Zen 2

You do know that his Zen 2 information was already a year old by the time he "leaked" it, yeah? And then it was another year before the product actually showed up. Metric boatloads can change in that time. Zen 2 silicon could legitimately have been hitting those specs at the time of the leak, but as the design and prototypes progress things change.

Whilst common sense dictates all leaks should be taken with a truck load of salt, it's pretty daft to hold a single leak as an immutable stance and then fingerpoint "you're full of *****, mate" years after the fact.

Gerard · 23 May 2022 at 19:39

LePhuronn said:
Radeon VII getting turned out in a hurry wasn't outside the realms of possibility. There was already a consumer-based Vega 20 project that was cancelled previously, so PCB design at least would've been on record somewhere, likely also a cooler as well. Wouldn't exactly be a Herculean task to get that PCB and cooler design out of the archive and drop existing MI50 dies onto it.

Well yeah, which is why RDNA1 wasn't shown.

Which goes against his claims that it was going to be shown. A gpu has to be pretty nailed down before a company is comfortable live demoing it. The way his article made it sound it was as if 5 mins before they were gonna show it they pulled the plug.

Just the standard bs to cover that his "info" was wrong.

timorous · 23 May 2022 at 19:44

Joxeon said:
It may turn out that the 5800X3D is better for gaming than Zen 4.

It will be in some games that really like cache.

I doubt it will be on average.

timorous · 23 May 2022 at 19:48

Toasty said:
Sandbagging is cope by leakers when they are wrong - Adored did this with 5.1Ghz Zen 2 now MLID is doing the same.

45% faster than a 12900K in a short blender test puts it 50% faster than the 5950X in a similar test.

Zen 2 to Zen 3 IPC charts had CB R23 ST at +13% which was below the 19% average uplift so a >15% perf gain in CB R23 ST could very well be on the lower end of the ST performance increases.

We got a few tiny bits of information. Anybody jumping on the Zen 4 sucks bandwagon is doing so prematurely. Not saying it is not going to be a dissapointment vs expectations but we do not have anywhear near enough data to jump to that conclusion.

RavenXXX2 · 23 May 2022 at 19:54

https://twitter.com/x/status/1528781809403707393

Where does this leave us? Not in a good place. AMD makes claims about laptop performance and efficiency and then goes out of their way to shut down independent testing in the least ethical way SemiAccurate can think of. The new AM5 socket looks good but marketing decisions make us wary on non-technical fronts, we hope AMD doesn’t go down the Intel path to ruin over this. Based on the numbers AMD put out, the Zen4 cores underperform expectations by a lot, lets hope there is upside when the real numbers are revealed later this year. One thing we don’t expect any up side on is Mendocino, a self-inflicted opportunity cost wound that we can’t justify on any front. What seemed like a good keynote didn’t hold up when you look at what was actually said rather than parroting back the talking points. What is going on at AMD?

Gerard · 23 May 2022 at 20:02

Cue the "amd is doomed" click bait bs. :cry:

uscool · 23 May 2022 at 20:05

Gerard said:
Then buy raptor lake if it is, you're not bound to one cpu or the other.

I ain't bound to either unlike some , 5900x will do me fine for quite a while

But I do lean towards AMD because of the socket support longevity

Gerard · 23 May 2022 at 20:09

uscool said:
I ain't bound to either unlike some , 5900x will do me fine for quite a while

But I do lean towards AMD because of the socket support longevity

Best way to be, no "allegiance" to a brand unlike a few on here I could mention that have the brands name tattooed on their arse.

LtMatt · 23 May 2022 at 20:10

Gerard said:
Best way to be, no "allegiance" to a brand unlike a few on here I could mention that have the brands name tattooed on their arse.

I can’t speak for the others Gerard, but I’m proud of my tramp stamp. :cry:

Gerard · 23 May 2022 at 20:12

LtMatt said:
I can’t speak for the others Gerard, but I’m proud of my tramp stamp.

You hussy! :mad:

robfosters · 23 May 2022 at 20:13

r22snapper said:
I play at the same resolution and have done this exact swap and am very happy. The 3900X didn't keep my 2080ti anywhere near 100% with a lot of frame rate dips. The X3D has it fully saturated at all times, I'd guess at an extra 10-15 fps but crucially for Flight Sim no noticeable stuttering or frame drops. I am now unlikely to upgrade my GPU which would have been my next move until I saw the results for the processor upgrade. I sold my 3900X for £180 as well which makes it a very decent upgrade for the price.

Don’t forget, we’re due DLSS in July as well

r22snapper · 23 May 2022 at 20:32

robfosters said:
Don’t forget, we’re due DLSS in July as well

Yep. I'm not sure it would have made much difference on the 3900X but with this one I'm looking forward to it. I want to go VR and not having to upgrade the GPU would be a good bonus.

Grim5 · 23 May 2022 at 20:48

humbug said:
Those 8 E cores are worth 7,000 points.

12900K: 27,472
5950X: 28,577

27,472 + 7,000 = 34,472 + 10% = 37,919

28,577 + 31% = 37,435.

13900K: 37,919 (+1%)
7950X: 37,435

Not bad given the 7950x is likely 170w while the 13900k likely 250w.

I don't see this as AMD losing to Intel and it's all over for Ryzen like some doomsday folk are suggesting. We know AMD can stick many more than 16 cores on a CPU - they are making a strategic choice to limit Zen 4 to 16, it's not like they couldn't do 32 cores if they wanted to

humbug · 23 May 2022 at 21:08

g67575 said:
So, Zen 3's score is around 1600 in Cinebench R23 (single core), according to these results:

Cinebench R23 (Single-Core) CPU benchmark list

Cinebench R23 (Single-Core) list with performance comparison of all CPUs in this benchmark

www.cpu-monkey.com

If we assume 15% higher single core performance for Zen 4, wouldn't that put Zen 4 a bit behind the 12900K, which has a score of 1997?

1644 + 15% = 1890 vs 1997 +5%

humbug · 23 May 2022 at 21:15

RavenXXX2 said:
https://twitter.com/x/status/1528781809403707393

Based on the numbers AMD put out, the Zen4 cores underperform expectations by a lot,

Whose expectations? I have a suggestion for you, AlwaysFake, don't create a hype train by fabricating rumours with ridiculous claims you pulled from your bum hole and you wont have to write idiotic follow up articles that frame the truth as tho it was a failing on AMD's part not to meet your invented male bovine manure rumours to save face.

Roguey000 · 23 May 2022 at 21:16

g67575 said:
Well, even a low/mid end Zen 4 CPU would be better than the 5950x for most tasks. At £500 a pop for a 5950x, I'd say hang on to your money.

Yea I get what you mean.

The trouble is with Zen4 is it will need new memory (got plently of DDR4 around) and an costly motherboard. So say £500'ish for the cpu (8-12 cores - 7800x or 7900x), £200~ for 32Gb memory (DDR5 might have come down somewhat) and £300~ for X670.

So £1,000+ for Zen 4, or £500 for an 5950x.

I was hanging off until some news about Zen4. Personally it didnt blow me away (+15% increase, due to 12% clock speed increase?). So I was thinking 5950x would do me for awhile. However after watching linus video, he was saying how great Zen4 was. Started to wonder if I missed something.