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Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13855 Credit: 208,696,464 RAC: 304 |
And then there's Genoa & Bergamo for EPYC Zen4. As part of AMD’s Data Center event today, the company is showcasing that its 4th Generation EPYC roadmap will consist of two segments: Genoa, with up to 96 Zen 4 cores, and Bergamo, with up to 128 Zen 4c cores.And while AMD may still be behind Nvidia when it comes to gaming, when it comes to compute their Instinct MI200 GPUs are nothing but compute beasts, particularly so for both FP32/FP64 Vector & Matrix work. Hopefully as countries get on top of Covid19 and supply chains start to untangle themselves, supply constraints will eventually fade away and output will be able to meet demand again. And the next couple of years are going to be downright amazing as new process nodes mature & current architectures are further refined & new ones come out based on what's been learnt over the last few years. Time to start saving seriously for my next system. Grant Darwin NT |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I assume by the time the supply line constraints are resolved, I will probably be waffling between the Milan-X and Zen 3+ cpus and the Zen 4 cpus which may be out at the same time for my next system upgrades. I was just extremely lucky to snag my Zen 3 Milan cpu. 99% of every other DIY builder is still waiting for their pre-orders to be fulfilled. Now more than 6 months after launch. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
ML1 Send message Joined: 25 Nov 01 Posts: 21253 Credit: 7,508,002 RAC: 20 |
I think she went for a Ryzen... For another example, going 'slightly north' for a fun 'first time' build, we have for contrast this fantastic customization: Nerdforge - I Built a Computer... Lot's of real-world deskspace needed! Enjoy the colourful enthusiastic fun!! Happy fast crunchin'! Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13855 Credit: 208,696,464 RAC: 304 |
Zen 4 Epyc will support 12-channel DDR5 RAM Next year is looking very interesting from a hardware performance point of view. Grant Darwin NT |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I wonder if it will still be just a difficult to actually score the hardware for DIY builds as it has been this year. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
JohnDK Send message Joined: 28 May 00 Posts: 1222 Credit: 451,243,443 RAC: 1,127 |
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Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
That looks like one die has either gone bad or the monitoring on that die has gone bad. Do you see the clocks on those hot cores being throttled? Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
JohnDK Send message Joined: 28 May 00 Posts: 1222 Credit: 451,243,443 RAC: 1,127 |
Last night I changed max cpu temp in the bios to 70c, after booting all cores suddenly worked normally, all around 60c. This morning it's only core 0+1 that has the high temp. Seems all cores runs at the same clock. |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13855 Credit: 208,696,464 RAC: 304 |
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Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I've had to disable CPU Temp monitoring in the BIOS and set it to Ignore, or I get spontaneous reboots on my ASUS C7H boards with a F1 CPU Overtemp ! error, even though none of the cpu cores ever get above 80° C. and the official throttle AMD temp spec is 95° C. I think the flaky temp reporting by the SIO chip on the motherboard occasionally spikes an erroneous high core temp which then trips the mobo protect feature if the cpu reporting in Monitoring is set to Monitor. I'm using the default BIOS setting for cpu max temp which is set to 95° C. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
JohnDK Send message Joined: 28 May 00 Posts: 1222 Credit: 451,243,443 RAC: 1,127 |
Haven't had any temp issues the last days, maybe all is back to normal. btw setting the max temp to 70c in bios didn´t help with the high temp I had. |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
AMD Zen4, AM5 platform Ryzen 9 7950X ES sample being used at Milkyway on the cpu N-body MT tasks. Bonkers BOINC integer benchmarks. https://milkyway.cs.rpi.edu/milkyway/show_host_detail.php?hostid=911833 Still haven't had any wingman complete the paired tasks to compare the processing times. Never ran the N-body tasks before so I don't know what representative times for current hardware is. The floating point benchmarks are nothing out of the ordinary compared to my Ryzen 9 5950X though. Just a bit better. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
For those interested in the high-level architectural changes coming in AM5 processors, the Gigabyte leak and the analysis from Chips and Cheese provides great information. https://chipsandcheese.com/2021/08/23/details-on-the-gigabyte-leak/ Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13855 Credit: 208,696,464 RAC: 304 |
For those interested in the high-level architectural changes coming in AM5 processors, the Gigabyte leak and the analysis from Chips and Cheese provides great information.Thanks for that. A very interesting read. Grant Darwin NT |
Ian&Steve C. Send message Joined: 28 Sep 99 Posts: 4267 Credit: 1,282,604,591 RAC: 6,640 |
For those interested in the high-level architectural changes coming in AM5 processors, the Gigabyte leak and the analysis from Chips and Cheese provides great information. sad to see AMD implementing AVX512 as it has very limited use and in some cases reduces performance vs AVX2 due to the heavy clock speed penalties (based on what intel does currently with AVX512, maybe AMD will do it differently), and adopting it will only help intel give legitimacy to AVX512. wasted die space IMO. Seti@Home classic workunits: 29,492 CPU time: 134,419 hours |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I think the implementation of AVX-512 is a case of marketing guys getting the upper hand over the design team in forcing AVX-512 to better match Intel capabilities. Every review you see comparing Ryzen/Threadripper/Epyc to Intel HEDT/server parts has the lack of AVX-512 support number one in the disadvantage lists. The marketing people want to knock that disadvantage from the list right now. I agree the amount of applications that actually implement AVX-512 is very limited. I also agree it is a waste of die space for BOTH Intel and AMD. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
New AMD Milan-X cpus are up for ordering now at ShopBLT https://www.shopblt.com/search/s_all=EPYC&s_max=25&s_lastpos=4688760&order_id=219337371 But a big 34% increase in price for the 7473X 24C over my existing 7443P 24C cpu. Think I will skip it and wait for Zen 4. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Ian&Steve C. Send message Joined: 28 Sep 99 Posts: 4267 Credit: 1,282,604,591 RAC: 6,640 |
34%? The 7473X is like over $4000 lol. The 7443P is about 14-1500. So it’s about 3x the price. I haven’t seen any compelling evidence that the Milan-X chips are worth the price. And zen4 will require a platform upgrade unfortunately. Seti@Home classic workunits: 29,492 CPU time: 134,419 hours |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I just copied the value from the story. Didn't check their math. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
First AMD Genoa motherboard and SP5 socket image with 12 DDR5 slots. https://forums.servethehome.com/index.php?attachments/lga6096-png.20966/ See the socket attachments of SP5 for the cooling solution has changed to 6 threaded posts instead of 4 threaded sockets of SP3. Expected I guess to be able to pull the cpu evenly down to mate with LGA6096 pins. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
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