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Number crunching :
AMD moves to 7nm
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Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13913 Credit: 208,696,464 RAC: 304 ![]() ![]() |
Next generation Epyc CPUs called Rome. AMD EPYC ‘Rome’ processor will carry multiple CPU chiplets manufactured using TSMC’s 7 nm fabrication process as well as an I/O die produced at a 14 nm node. As it appears, high-performance ‘Rome’ processors will use eight CPU chiplets offering 64 x86 cores in total, as well as an eight-channel DDR4 memory controller supporting up to 4 TB of DRAM per socket. Besides, the new processor supports 128 PCIe 4.0 lanes... Floating point performance per core is claimed to have doubled, resulting in per socket performance quadrupling. Radeon Instinct MI60 and Radeon Instinct MI50. AMD GPUs for the enterprise market. Grant Darwin NT |
![]() ![]() ![]() Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 ![]() ![]() |
Haven't seen any in depth analysis of Zen 2 architecture yet, just the broad strokes so far. I did catch the slide that showed the FPU register width doubled from 128bit to 256bit wide. So improvements just on that for floating point performance. Supposed to be lots of reengineering of the instruction scheduler to give again improved IPC performance outside of the general benefits of the feature size shrink to 7nm. Seti@Home classic workunits:20,676 CPU time:74,226 hours ![]() ![]() A proud member of the OFA (Old Farts Association) |
![]() Send message Joined: 25 Nov 01 Posts: 21687 Credit: 7,508,002 RAC: 20 ![]() ![]() |
I very much like the chiplets idea. Excellent for improved yield and for great flexibility. Here's hoping AMD can further leap ahead without any spoilers and vandalism from any anticompetitive stupidity from others... Happy fast cool crunchin'! Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
![]() Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 ![]() |
So the question in my mind becomes how long before this siphons down to the consumer level chips? It would be really "neat" if I could get a 2990WX-like chip with direct access to memory from all its cores like the server versions of this chip already do, but at a consumer level price, not an enterprise price. Oh, no. My 2990WX is "already" obsolete! (But still being produced :) :) :) :) Tom A proud member of the OFA (Old Farts Association). |
![]() ![]() ![]() Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 ![]() ![]() |
My best guess is Q4 2019 for consumer 7nm parts. Seti@Home classic workunits:20,676 CPU time:74,226 hours ![]() ![]() A proud member of the OFA (Old Farts Association) |
![]() Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 ![]() |
My best guess is Q4 2019 for consumer 7nm parts. So we might get some kind of Threadripper 3 in the 2990WX by then? I wonder, will the threadripper3 in 7nm cpus need a need a new MB socket or will we have the same direct access to memory issues the 2990WX has now? Tom A proud member of the OFA (Old Farts Association). |
![]() ![]() ![]() Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 ![]() ![]() |
Zen 2 on 7nm is said to keep the same socket. Zen3 is said to offer two different platforms. First will keep the same socket and then another socket to support DDR5 and DDR6. Zen 3 isn't till 2020. Seti@Home classic workunits:20,676 CPU time:74,226 hours ![]() ![]() A proud member of the OFA (Old Farts Association) |
![]() Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 ![]() |
I was reading about rumors on the AMD Ryzen 3000 series. From a straight ahead all the CPUs have direct access to memory ideal its seems like it would be a better buy for Seti CPU crunching than the 2990WX appears to be. Tom A proud member of the OFA (Old Farts Association). |
![]() ![]() ![]() Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 ![]() ![]() |
I was just reading ExtremeTech's debunking of the Ryzen 3000 rumors. I think the article makes some cogent points that the rumors are false. I can't see the chiplet design of Rome making it into the Ryzen product line. Not unless you changed the socket. If doing that, you would just be using the Socket SP3r2 of Threadripper. So what is the point. There just isn't enough room in the package to put a 14nm I/O die alongside 2 or more "chiplet" dies. And also including a Navi gpu die in the "G" SKU's is laughable. And the posted MSRP price points also unbelievable. Seti@Home classic workunits:20,676 CPU time:74,226 hours ![]() ![]() A proud member of the OFA (Old Farts Association) |
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