Want the 5800X3D have too little cores? look no further - AMD EPYC 7000X "Milan - X" Launching today

[williamcll]

Having been teased for a few weeks and more, the 3D cache version of AMD's server grade CPUs are now available for sale. The top model 7773X takes up 280 Watts of power and costs 8800$ USD. if you get the dual setup you get over a gigabyte of L3.

Quotes

Quote

AMD’s EPYC 7003 series will feature four SKUs, including 64, 32, 24 and 16-core parts. The 7773X which is the flagship model featuring 64-cores and a TDP of 280W will retail at 8,880 USD. The 32-core SKU called 7573X with the same TDP will cost 5,590 USD. Those chips are targeted for Finite Element Analysis and Structural Analysis, according to AMD. Two 240W parts featuring 24 and 16 cores are designed Electronic Design Automation and Computation Fluid Dynamics. The 7473X and 7373X will cost 3,900 USD and 4,185 USD respectively. Each chiplet is equipped with 96MB of L3 Cache (64+32MB), which gives a total of 768MB L3 for the whole 8-chiplet EPYC package. Even the parts that use 16-cores have all 8 dies enabled with their 3D V-Cache, thus the L3 cache is the same for all four SKUs.

Earlier, a bilibili user was able to get two engineering sample and he got the following results: That said, possibly due to it being a sample, it has performance issues compared to the 7T83 from the non-X series.

The sample also supported overclocking, but possibly due to power issues, there was little improvements even pushing all cores above 3.5Ghz

My thoughts

It's not cheap, but at the same time there's not much to compare against with a specification like this. I hope there will be a threadripper version of this.

 

Sources

https://videocardz.com/newz/amd-epyc-7003-milan-x-launches-march-21st-specs-and-pricing-leaked

https://www.bilibili.com/video/BV1wu41127LT

 

[igormp]

Level1tech already has a video out on it:

 

And here are some linux benchmarks:

https://www.phoronix.com/scan.php?page=article&item=amd-epyc-7773x-linux&num=1

 

And it's nice to see that's already available on Azure:

https://www.phoronix.com/scan.php?page=article&item=amd-milanx-hbv3&num=1

 

[Lightwreather]

4 minutes ago, igormp said:

Azure:

Wonder if I can get to use it for a couple hours under my student credit. :think: Anyone know how much 3dvcache would affect F@H and/or mining?

[igormp]

24 minutes ago, J-from-Nucleon said:

Wonder if I can get to use it for a couple hours under my student credit.

Likely not, those free credits usually have a limited pool of available configs, so you'd need to ask for a quota for different configs (I had to do so to get V100 machines with some free credit I got from MS).

[leadeater]

40 minutes ago, igormp said:

And here are some linux benchmarks:

https://www.phoronix.com/scan.php?page=article&item=amd-epyc-7773x-linux&num=1

There's some rather sizable gains in there, damn....

[Bananasplit_00]

1 hour ago, williamcll said:

My thoughts

 Give a few sentences with your thoughts on the news. For example, this might be why you think the news is interesting, what you think the broader implications of this news are for the tech industry, or how you expect the story to develop in future. 

Mmmm interesting take indeed

[porina]

1 hour ago, J-from-Nucleon said:

Anyone know how much 3dvcache would affect F@H and/or mining?

Not done folding in a while. Is CPU folding still a thing at all? I have no idea how it scales though, or the data set sizes involved. That could give a clue how it behaves. What sort of ram is used? If that number is smaller than the cache, it might help.

 

Likewise with mining... what mining? Ethereum likely would still suck as the required data set is way beyond the cache available. I don't know about CPU-centric coins.

[WhitetailAni]

@williamcll may I recommend fixing this

[poochyena]

Meanwhile my 6600k with 6mb of l3 cache.

I don't think I ever heard anyone ever talk about cpu cache in any serious manner before this year. I guess its going to start to be important now?

[BabaGanuche]

2 hours ago, J-from-Nucleon said:

Wonder if I can get to use it for a couple hours under my student credit. :think: Anyone know how much 3dvcache would affect F@H and/or mining?

 

Looks like about 5.2% performance boost for GROMACS the program used for CPU F@H. Now sure how this compares to the current version used by F@H and how the benchmark workload compares to F@H.

[porina]

3 hours ago, poochyena said:

Meanwhile my 6600k with 6mb of l3 cache.

I don't think I ever heard anyone ever talk about cpu cache in any serious manner before this year. I guess its going to start to be important now?

As often the case it depends a lot on the software. Does the software depend on a large data set that it accesses heavily? If so, it may help.

 

I have a consumer desktop CPU that has more cache than the 5800X3D. it is an i7-5775C with 128 MB of L4 cache, nearly 7 years old. For some compute tasks I was doing on it at the time, it effectively made the ram performance irrelevant. To match it with Skylake I had to run dual channel dual rank 3200 ram.

[Helpful Tech Witch]

4 hours ago, poochyena said:

Meanwhile my 6600k with 6mb of l3 cache.

I don't think I ever heard anyone ever talk about cpu cache in any serious manner before this year. I guess its going to start to be important now?

It’s always been important

the increase in the amount means mor and more data can be stored in the cpu. Since the cpus are getting more powerful, they can process more info at once so more being stored in cache is great. Less has to be in normal ram

[cmndr]

6 hours ago, poochyena said:

I don't think I ever heard anyone ever talk about cpu cache in any serious manner before this year. I guess its going to start to be important now?

It was talked about....

 

Pentium 1
Pentium Pro

Celeron vs Celeron A (first variant had 0 l2cache, next variant had "fast" on-die cache and was often faster than the more expensive Pentium III)

Pentium III with on die L2 cache vs PIII with off-die cache

Pentium 4 Extreme Edition
Core i7 (Nehalem)
Core i7 (Broadwell)
Zen 2

IBM Telum
 

The issue here is that it's the first time we've been able to do die-stacking like this. This enables L3 cache in amounts that not THAT long ago were what you'd expect for system RAM.

In some sense this breaks the Von Neumann Bottleneck.


Caching is one of those things where for CERTAIN problems it matters a lot.
Consumer applications aren't usually THAT sensitive to cache though. Think 2x the cache -> 3-10% overall performance uplift.
Part of what happens is that on launch there's not much of a benefit around there being more cache as applications are designed around the assumption of there not being much cache in general. Later generations of software benefit more.

[poochyena]

2 hours ago, cmndr said:

It was talked about....

I said in a serious manner. Some of what you posted are before I got into tech so idk, maybe it was serious 15 years ago, but like for zen 2, people talked about it, but in a "hey look, ryzen CPUs have a lot more cache than intel CPUs... thats neat I guess." It has just been more of a footnote. This year is the first time I've seen cache being advertised as *the* feature of a CPU, more than just a neat little bonus.

[cmndr]

1 hour ago, poochyena said:

I said in a serious manner. Some of what you posted are before I got into tech so idk, maybe it was serious 15 years ago, but like for zen 2, people talked about it, but in a "hey look, ryzen CPUs have a lot more cache than intel CPUs... thats neat I guess." It has just been more of a footnote. This year is the first time I've seen cache being advertised as *the* feature of a CPU, more than just a neat little bonus.

I mean some of it is that beyond the cache there's absolutely 0 selling point to this specific product.

With that said this is also a nice innovation in terms of manufacturing.

[Doobeedoo]

5800X3D aimed in gaming front and enough cores for that segment. Really interested to see that cache tested in games.