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Why do the world's best Supercomputers use Intel Xeon E5 chips or something, instead of AMD's Epyc Rome 7742 or Threadripper 3990x as those things offer higher clocks and more cores

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7 minutes ago, GiftedNovaHD said:

Why do the world's best Supercomputers use Intel Xeon E5 chips or something, instead of AMD's Epyc Rome 7742 or Threadripper 3990x as those things offer higher clocks and more cores

(I'm not really familiar with server gear)

But as far as I'm aware AMD only recently got competative on the server side, so it could be that those sc are "too old" for amd? Or it has to do with those being specially built for these supercomputers?

(only some thoughts)

a person with an AIO liquid cpu cooler installed on his brains.

 

Just Kidding

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Servers are all about longevity and don't upgrade as frequently. So, AMD will need to wait a few years in order for everyone to transition.

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17 minutes ago, GiftedNovaHD said:

Why do the world's best Supercomputers use Intel Xeon E5 chips or something, instead of AMD

ahem

https://venturebeat.com/2020/03/05/amds-top-supercomputer-wins-are-a-big-moment-in-heated-competition/

I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k (won) - EVGA Z370 Classified K - G.Skill Trident Z RGB - WD SN750 - Jedi Order Titan Xp - Hyper 212 Black (with RGB Riing flair) - EVGA G2 650W - dual booting Windows 10 and Linux - Black and green theme, Razer brainwashed me.

Draws 400 watts under max load, for reference.

 

Linux Proliant ML150 G6:

Dual Xeon X5560 - 24GB ECC DDR3 - GTX 750 TI - old Seagate 1.5TB HDD - dark mode Ubuntu (and Win7, cuz why not)

 

How many watts do I need? Seasonic Focus threadUserbenchmark (Et al.) is trash explained, PSU misconceptions, protections explainedgroup reg is bad

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18 minutes ago, GiftedNovaHD said:

Why do the world's best Supercomputers use Intel Xeon E5 chips or something, instead of AMD's Epyc Rome 7742 or Threadripper 3990x as those things offer higher clocks and more cores

its not about higher clocks and frquenzy.

 

its about:

power usage

heat

IPC

QUOTE ME  FOR ANSWER.

 

Main PC:

Spoiler

|Ryzen 7 3700x, OC to 4.2ghz @1.3V, 67C, or 4.4ghz @1.456V, 87C || Asus strix 5700 XT, +50 core, +50 memory, +50 power (not a great overclocker) || Asus Strix b550-A || G.skill trident Z Neo rgb 32gb 3600mhz cl16-19-19-19-39, oc to 3733mhz with the same timings || Cooler Master ml360 RGB AIO || Phanteks P500A Digital || Thermaltake ToughPower grand RGB750w 80+gold || Samsung 850 250gb and Adata SX 6000 Lite 500gb || Toshiba 5400rpm 1tb || Asus Rog Theta 7.1 || Asus Rog claymore || Asus Gladius 2 origin gaming mouse || Monitor 1 Asus 1080p 144hz || Monitor 2 AOC 1080p 75hz || 

Test Rig.

Spoiler

Ryzen 5 3400G || Gigabyte b450 S2H || Hyper X fury 2x4gb 2666mhz cl 16 ||Stock cooler || Antec NX100 || Silverstone essential 400w || Transgend SSD 220s 480gb ||

Just Sold

Spoiler

| i3 9100F || Msi Gaming X gtx 1050 TI || MSI Z390 A-Pro || Kingston 1x16gb 2400mhz cl17 || Stock cooler || Kolink Horizon RGB || Corsair CV 550w || Pny CS900 120gb ||

 

Tier lists for building a PC.

 

Motherboard tier list. Tier A for overclocking 5950x. Tier B for overclocking 5900x, Tier C for overclocking 5800X. Tier D for overclocking 5600X. Tier F for 4/6 core Cpus at stock. Tier E avoid.

(Also case airflow matter or if you are using Downcraft air cooler)

Spoiler

 

Gpu tier list. Rtx 3000 and RX 6000 not included since not so many reviews. Tier S for Water cooling. Tier A and B for overcloking. Tier C stock and Tier D avoid.

( You can overclock Tier C just fine, but it can get very loud, that is why it is not recommended for overclocking, same with tier D)

Spoiler

 

Psu tier List. Tier A for Rtx 3000, Vega and RX 6000. Tier B For anything else. Tier C cheap/IGPU. Tier D and E avoid.

(RTX 3000/ RX 6000 Might run just fine with higher wattage tier B unit, Rtx 3070 runs fine with tier B units)

Spoiler

 

Cpu cooler tier list. Tier 1&2 for power hungry Cpus with Overclock. Tier 3&4 for overclocking Ryzen 3,5,7 or lower power Intel Cpus. Tier 5 for overclocking low end Cpus or 4/6 core Ryzen. Tier 6&7 for stock. Tier 8&9 Ryzen stock cooler performance. Do not waste your money!

Spoiler

 

Storage tier List. Tier A for Moving files/  OS. Tier B for OS/Games. Tier C for games. Tier D budget Pcs. Tier E if on sale not the worst but not good.

(With a grain of salt, I use tier C for OS myself)

Spoiler

 

Case Tier List. Work In Progress. Most Phanteks airflow series cases already done!

Ask me anything :)

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28 minutes ago, GiftedNovaHD said:

use Intel Xeon

Momentum, inertia. 

"We've always used Xeons, so we will always continue to use Xeons."

 

And I say this as someone who is a big fan of using Xeons in home systems.

It's going to take a few years for AMD to get their foot in the door on the server world.

 

Plus don't forget the Opteron servers weren't such a great value, businesses have a long memory...

So rise up, all ye lost ones, as one, we'll claw the clouds

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I know some supercomputers that are using EPYC and are planning to scale up to 2 ExaFLOPS while saving prices due to its low price

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