Threadripper X3D?

[wookiee87]

ASUS WRX90 motherboard manual hints at 3D V-Cache for Threadripper CPUs - VideoCardz.com

3D V-Cache for Threadripper 9000 series? ASUS WRX90 motherboard has an option to disable 3D V-Cache per stack, except no Threadripper SKU has 3D V-Cache. This could hint at features in the next-generation Threadripper, or it may simply be an unused capability. Officially, WRX90 chipsets and...

videocardz.com

 

[subbytna]

AMD’s 3D V-Cache tech coming to Threadripper and Ryzen APUs

Expanding the brand AMD is reportedly planning to expand its 3D V-Cache technology to even more products, with rumours pointing to Ryzen APUs and Threadripper CPUs getting in on the action. Known for delivering a massive boost to gaming and productivity performance, 3D V-Cache is AMD’s secret...

www.fudzilla.com

Seems like it's deffo happening. Just bonkers lol. Love it.

 

[wookiee87]

no letup for poor intel

 

[john_smith]

no letup for poor intel

Yep. ha

Stop! Stop! He's Already Dead! | Know Your Meme

Stop! Stop! He's Already Dead! is a quote from The Simpsons that has been used as a reaction image and exploitable image macro to signify when a poster bel

knowyourmeme.com

 

[Poneros]

Just don't look at the price tag.

 

[wookiee87]

Just don't look at the price tag.

price is a mere stepping stone comparted to the performance on offer

 

[tommoT.Striker]

If the performance of the 9800X3D in apps you can see why AMD will bring another tier of Threadripper to the market.
https://www.phoronix.com/review/amd-ryzen-7-9800x3d-linux/8

Some interesting quotes:

For the geo mean of the more than 300 benchmarks, the Ryzen 7 9800X3D surpassed the Core i9 14900K and landed just behind the prior gen Ryzen 9 7950X and Ryzen 9 7950X3D processors. Compared to the Ryzen 7 7800X3D...Compared to the Ryzen 7 9700X, the Ryzen 7 9800X3D offered 9% better performance across the wide swath of benchmarks conducted.

While not all workloads can benefit greatly from 3D V-Cache, there are many productivity/HPC/technical computing workloads that can

9% from a 9700X might not seem much, but there are some apps with a far bigger difference in favour of X3D. For example for the SV1 AV1 encoder the 9800X3D is the fastest CPU in the test beating the 9950X. Now with the frequency deficit gone, it's quite compelling. Even the 9950X3D is going to show big application increases never mind Threadripper.

 

[Meaker]

price is a mere stepping stone comparted to the performance on offer

It's a bit of a niche of a niche though, you need to have a highly threaded workload or one that needs a large amount of I/O that will also beneifit from the vcache.

Unless maybe the gaming perforamnce is really nice and it then becomes it can be the best at gaming and productivity?

 

[Capitano]

I dont get why they do normal AND X3D variants? At this point surely you can just do X3D as the norm

 

[Tee Hee Johnson]

I dont get why they do normal AND X3D variants? At this point surely you can just do X3D as the norm

It depends on usage. Sometimes faster core clock is better than large cache.

 

[hornetstinger]

I dont get why they do normal AND X3D variants? At this point surely you can just do X3D as the norm

Money.

I wouldn't spend x3d money on a CPU so I'd want x3d for the <£200 I paid for me 7700

 

[jigger]

I dont get why they do normal AND X3D variants? At this point surely you can just do X3D as the norm

It would roughly half AMD’s manufacturing capacity and double the price of everything.

 

[SpellowHouse]

I dont get why they do normal AND X3D variants? At this point surely you can just do X3D as the norm

As I understand it, the problem is heat. Creating a chip sandwich reduces the ability of the package to get rid of heat. This can limit core clocks and in some cases that leads to worse performance.

 

[Raiden85]

As I understand it, the problem is heat. Creating a chip sandwich reduces the ability of the package to get rid of heat. This can limit core clocks and in some cases that leads to worse performance.

But with the 9xxx series, putting the 3D cache on the bottom instead of the top has pretty much solved the heat issue, and the clocks are not much lower at all. They'd probably love to do only the X3D chips instead of both types, but it probably comes down to being harder and more costly to make.

 

[WARburton]

I dont get why they do normal AND X3D variants? At this point surely you can just do X3D as the norm

task... not ever user need's x3d, some just need cores to grind all day ever day for ever and get no benefit from x3d so why pay for it.
also what the yield of chips what are compatabl with the stacked cache, and what the yield of the cache its self

and finally AMD can charge more if it a super special chip

 

[Capitano]

It depends on usage. Sometimes faster core clock is better than large cache.

I know but I dont think it helps having TOO many different options in cpu's to choose from, they just need to make each option a bit unique in its own way I feel

 

[Capitano]

But with the 9xxx series, putting the 3D cache on the bottom instead of the top has pretty much solved the heat issue, and the clocks are not much lower at all. They'd probably love to do only the X3D chips instead of both types, but it probably comes down to being harder and more costly to make.

I can see it being a bit more complicated to make, but at this point they would have it nailed down surely?

 

[SpellowHouse]

But with the 9xxx series, putting the 3D cache on the bottom instead of the top has pretty much solved the heat issue, and the clocks are not much lower at all. They'd probably love to do only the X3D chips instead of both types, but it probably comes down to being harder and more costly to make.

Yes, but it also explains the rather odd temperature curves and why placing larger coolers on the chip doesn't make that much difference. Layering the chips makes it more difficult to get rid of the heat.

 

[Capitano]

Once they get the perfect implementation of X3D I think they’ll stop making the regular chips. At least at the high end anyway

 

[jigger]

Once they get the perfect implementation of X3D I think they’ll stop making the regular chips. At least at the high end anyway

L3 is a burner layer of cache and not all processes require cache to burn. Many tasks only require kilobytes of cache to operate and if you can hit layer within a clock or two 16/32 times the next layer provides no benefit.