Live data from Hacker News

AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

anandtech.com

21–30 of 79 posts

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#21
I'm impressesed by the initial performance numbers, the price, PCIe 5.0, Having 8 lanes to the PCH instead of 4, 10gbe on most motherboards. It's good that AMD is continueing the trend where users don't have to upgrade their motherboards every generation.

The main catch is DDR5 being expensive and compatability issues with four DIMMS[0]/ teething issues.

(Personally, I wish AMD released a 5900X/ 5950X with 3D V-Cache. The 5800X3D is nice, but I also need cores.)

[0] https://www.youtube.com/watch?v=uu9U7TVNImI

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#22
post #19

Earlier quoted context omitted.

So for a similar launch price you get >2x the performance, almost identical pcie bandwidth (4x28) and faster memory (less of it though). Seems pretty great to me?

8x DDR4-2666 -> 2x DDR5-5600 is half the memory throughput too. That was the first thing that made my head scratch; having much bigger cores & still lots of PCIe throughput, but way less memory bandwidth. That said, 8x DDR4-2666 also scaled up to 64c chips in Naples, this isn't unreasonable.

But you're comparing consumer/desktop to HEDT/server. They prioritize different things - the memory bandwidth is less of a bottleneck on desktop. While your premise is that the pricing is HEDT (based on a first generation part from 2017), the current Threadripper is a $6500 part that does still carry 8 memory channels, up to 3200Mhz.

One would imagine that EPYC based on Zen 4c would have the memory throughput you crave, though I wouldn't hold your breath for $700 pricing. It's still hard to say how committed AMD is to the middle ground of HEDT.

https://www.amd.com/en/products/cpu/amd-ryzen-threadripper-p...

https://www.servethehome.com/amd-ryzen-threadripper-pro-5995...

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#23

I'm impressesed by the initial performance numbers, the price, PCIe 5.0, Having 8 lanes to the PCH instead of 4, 10gbe on most motherboards. It's good that AMD is continueing the trend where users don't have to upgrade their motherboards every generation. The main catch is DDR5 being expensive and compatability issues with four DIMMS[0]/ teething issues. (Personally, I wish AMD released a 5900X/ 5950X with 3D V-Cache…

Isn't this generation on a new AM5 socket, won't users need to upgrade their motherboards this generation

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#24

I'm impressesed by the initial performance numbers, the price, PCIe 5.0, Having 8 lanes to the PCH instead of 4, 10gbe on most motherboards. It's good that AMD is continueing the trend where users don't have to upgrade their motherboards every generation. The main catch is DDR5 being expensive and compatability issues with four DIMMS[0]/ teething issues. (Personally, I wish AMD released a 5900X/ 5950X with 3D V-Cache…

Price isn't especially impressive. Performance is good though.

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#25

I'm impressesed by the initial performance numbers, the price, PCIe 5.0, Having 8 lanes to the PCH instead of 4, 10gbe on most motherboards. It's good that AMD is continueing the trend where users don't have to upgrade their motherboards every generation. The main catch is DDR5 being expensive and compatability issues with four DIMMS[0]/ teething issues. (Personally, I wish AMD released a 5900X/ 5950X with 3D V-Cache…

Isn't this generation on a new AM5 socket, won't users need to upgrade their motherboards this generation

To clarify, this is a new platform, but they have committed to maintaining the AM5 socket (and supporting platform) through at least some future advancements, as they did with AM4 from Zen, Zen+, Zen 2 and Zen 3.

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#27
post #24

I'm impressesed by the initial performance numbers, the price, PCIe 5.0, Having 8 lanes to the PCH instead of 4, 10gbe on most motherboards. It's good that AMD is continueing the trend where users don't have to upgrade their motherboards every generation. The main catch is DDR5 being expensive and compatability issues with four DIMMS[0]/ teething issues. (Personally, I wish AMD released a 5900X/ 5950X with 3D V-Cache…

Price isn't especially impressive. Performance is good though.

It could have gone up (I think the EU/ UK will increase, we'll see). Still haven't heard anything on motherboard pricing (those motherboards with 20 powerstages aren't going to be cheap!).

Given the platform costs, the lowend 7600X doens't make sense. AMD does some weird product placing...

I didn't expect to see them hitting 5.8Ghz [stock], wow!

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#28
post #5

Die Area of only 3.84mm2 for Core + L2. This is a similar to Apple A14/A15. On TSMC N5 although they are likely different variant, optimising for clockspeed rather than Low Power. 13% increase in IPC, and additional clock speed increase as well from N5. The server variant Zen4C with 128 Core per socket should compete fairly well with Ampere ARM variant. I just hope AMD is a little more ambitious than they were and bo…

>I just hope AMD is a little more ambitious than they were and book way more 5nm capacity. They have been way too conservatives with their forecast on their CPU side.

I doubt they've been conservative. AMD has less than $6bn cash on hand. They're prepaying for stuff what they can afford, which they've said in statements totals $300-400MM at any given time. Apple can wire $6bn to TSMC tomorrow if they need to. AMD just can't play in that game.

TSMC demanding tighter payment terms and more up front to reserve capacity is really not good for AMD.

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#29
post #24

Earlier quoted context omitted.

Price isn't especially impressive. Performance is good though.

It could have gone up (I think the EU/ UK will increase, we'll see). Still haven't heard anything on motherboard pricing (those motherboards with 20 powerstages aren't going to be cheap!). Given the platform costs, the lowend 7600X doens't make sense. AMD does some weird product placing... I didn't expect to see them hitting 5.8Ghz [stock], wow!

They mentioned (in the live presentation) the motherboards starting at $125.
Post reply on HN