Discussion EPYC 7542 vs Ryzen 5950x in WCG

[Markfw]

So here are the last 5 units for my 7452155 watt)

Edit, see post number 2, I messed up.

Versus the last 5 on one of my 5950x142 watt)

Edit, see post number 2, I messed up.

But the platform is WAY cheaper. Over $$2285 for the cheapest cpu+128 gig 2666 ram+motherboard versus $865 for 5950x+motherboard+32 gig ram, the 5950x is the $$ choice,

So my conclusion is the 5950x is the way to go, hence why I just got my 5th one ! and I have a 3950x which is close.

 

[Markfw]

OK, My stats are a little off, here is copy/paste from excel

5950x	2/10/2022​	0:029:00:13:00	215740​	343​		2/10/2022​	0:028:03:45:44	224066​	380​
	2/9/2022​	0:024:18:48:58	179334​	284​		2/9/2022​	0:028:20:35:18	226761​	364​
	2/8/2022​	0:031:07:26:35	233712​	360​		2/8/2022​	0:028:18:09:32	232426​	368​
	2/7/2022​	0:029:22:15:24	206857​	360​		2/7/2022​	0:027:01:17:10	207324​	364​
	2/6/2022​	0:028:23:30:25	210150​	338​		2/6/2022​	0:026:00:20:58	208531​	328​
	2/5/2022​	0:029:12:54:47	214260​	348​		2/5/2022​	0:027:10:05:05	223607​	346​
	2/4/2022​	0:032:11:04:39	232321​	384​		2/4/2022​	0:028:06:55:58	220794​	375​
	2/3/2022​	0:033:21:11:13	251200​	386​		2/3/2022​	0:031:14:14:53	254464​	391​
	2/2/2022​	0:037:23:55:34	277806​	457​		2/2/2022​	0:026:17:59:46	222221​	330​
	2/1/2022​	0:026:00:28:47	184581​	310​		2/1/2022​	0:036:19:11:10	293012​	462​
			220596.1​	357​				231320.6​	370.8​
7452​	2/10/2022​	0:064:11:35:20	322025​	488​
	2/9/2022​	0:060:06:42:48	309652​	524​
	2/8/2022​	0:062:17:22:36	306328​	508​
	2/7/2022​	0:062:01:14:12	324855​	501​
	2/6/2022​	0:062:06:35:57	305961​	520​
	2/5/2022​	0:065:16:08:44	331766​	511​
	2/4/2022​	0:064:16:06:27	330156​	537​
	2/3/2022​	0:051:00:06:55	258904​	436​
	2/2/2022​	0:065:04:07:43	322945​	485​
	2/1/2022​	0:063:02:53:33	324161​	547​
			313675.3​	505.7​

So the first lines are 2 different 5950x averaged for 10 days. 221k for the first, 231k for the second. The 3950 (not shown here) is 213k, not far off.

The 7452 is 314k. So almost 50% more units/points. So , 70% of the points for 92% of the power. But way less cost to buy. And I was using a $1300 7452 QS chip. The real ones are $2250 or more, just for the chip. VS the $580 is open box, but NEW 5950x. And there are a lot of new for $600-$620 right now (ebay)

 

[cellarnoise]

The 5950x does really well and with the bios I have seen scales very well through low power to overclock power levels.

I plan on picking at least one more up to replace older same socket stuff...

Am5 / and cpus look to be coming out faster than expected. And Intel may be out sooner than expected also. I love the competition and hope the shortages receed over next few years!

 

[Icecold]

I've been really happy with both my 3950x's and my 5950x's. There is something to be said for having fewer higher thread count machines though when it comes to bunkering for a challenge, or even monitoring them on day to day basis, etc. Most of my machines are 3900x's, 3950x's or 5950x's acquired inexpensively though.

 

[Markfw]

I've been really happy with both my 3950x's and my 5950x's. There is something to be said for having fewer higher thread count machines though when it comes to bunkering for a challenge, or even monitoring them on day to day basis, etc. Most of my machines are 3900x's, 3950x's or 5950x's acquired inexpensively though.

This will put me at 3 3900x, one 3950x, and 5 5950x. I just don't want to spend more money on EPYC due to cost. I am not running any Naples EPYC right now to save $$$, or 2990wx's (2 of them) as I am not sure, but I think the 5950x can match the 2990wx, at half the power !

Edit: I just looked it up. Mine were doing only a hare more than the 7452, but the reviews had the power at 250 watt, so not twice as much, but close.

2990wx	12/10/2021​	0:065:09:43:36	340969​	528​
	12/9/2021​	0:058:11:28:29	315896​	555​
	12/8/2021​	0:055:07:29:51	275427​	470​
	12/7/2021​	0:059:14:59:04	312894​	498​
	12/6/2021​	0:065:06:39:11	342942​	594​
	12/5/2021​	0:056:08:47:27	290342​	465​
	12/4/2021​	0:067:08:26:29	364520​	603​
	12/3/2021​	0:059:07:47:52	310541​	518​
	12/2/2021​	0:055:19:08:26	293389​	455​
	12/1/2021​	0:063:04:15:46	335599​	585​
			318251.9​	527.1​

 

[Skillz]

Mark, you got a recommendation on a 64 GB ram kit for a 7551P CPU setup?

 

[Markfw]

Mark, you got a recommendation on a 64 GB ram kit for a 7551P CPU setup?

Thats a EPYC 7551 ????? Single socket ?

8 of these would do

Are you a human?

www.newegg.com

 

[OnetwoShot]

Right now the 5950x is on sale on eBay from antonline for $630. After seeing your numbers, Mark, a 5950x seems to make more sense than an Epyc. I have a hard time understanding the 7551P with more expensive boards and memory, along with higher power consumption leading to higher AC bill in the summer. Am I missing something?

 

[Markfw]

Right now the 5950x is on sale on eBay from antonline for $630. After seeing your numbers, Mark, a 5950x seems to make more sense than an Epyc. I have a hard time understanding the 7551P with more expensive boards and memory, along with higher power consumption leading to higher AC bill in the summer. Am I missing something?

Money wise, the EPYC is total lower power and more throughput. But the 5950x is close and while not quite as efficient, pretty close.

Look on ebay... Wait, I just looked, they are all gone.(the ones $600-620) I got the one before the one coming tomorrow for 649 from antonline. 630 is great ! Too bad you all missed the $620 price that it was there a week ago.

 

[OnetwoShot]

Money wise, the EPYC is total lower power and more throughput. But the 5950x is close and while not quite as efficient, pretty close.

Look on ebay... Wait, I just looked, they are all gone.(the ones $600-620) I got the one before the one coming tomorrow for 649 from antonline. 630 is great ! Too bad you all missed the $620 price that it was there a week ago.

This is slightly off-topic and couldn't find the answer. What 24/7 temp do you run your ryzen CPUs at? I set limiter in BIOS to 75C and with 5800x 8/16 at ~4300Mhz all core.

 

[StefanR5R]

We are talking about two very different EPYCs here. The 7452 (32-core Rome) is mainly about HPC. The 7551P (32-core single-socket Naples) nowadays is mainly about I/O* and integer workloads. Naples' FP width and vector arithmetic width per core is roughly half of Rome's.

________
*) edit, except for applications which require a single PCIe root

 

[Markfw]

This is slightly off-topic and couldn't find the answer. What 24/7 temp do you run your ryzen CPUs at? I set limiter in BIOS to 75C and with 5800x 8/16 at ~4300Mhz all core.

The 5950x's run about 75c. Its not "what I run them at" its all stock. With a good cooler thats what they run, 75-80. They run WCG at 4 ghz

EDit: @StefanR5R , aren't the 5950x and the Rome "chips" the same except binning ? The IO chip and the bios are different, but isn't the chiplet the same ?

 

[StefanR5R]

Zen: EPYC 7001 'Naples', Ryzen 1000 'Summit Ridge'
Zen 2: EPYC 7002 'Rome', Ryzen 3000 'Matisse'
Zen 3: EPYC 7003 'Milan', Ryzen 5000 'Vermeer'

 

[Markfw]

Zen: EPYC 7001 'Naples', Ryzen 1000 'Summit Ridge'
Zen 2: EPYC 7002 'Rome', Ryzen 3000 'Matisse'
Zen 3: EPYC 7003 'Milan', Ryzen 5000 'Vermeer'

Where do the 2000 series stand ? Especially the 2990wx and the 2970wx ?

 

[Icecold]

Where do the 2000 series stand ? Especially the 2990wx and the 2970wx ?

There was not any Zen+ (which is what the 2000 series is) EPYCs released. Zen+ performs very close to Zen, though - it is much more comparable to a Naples CPU than a Rome CPU.

 

[Skillz]

Yes, single socket. Going to attempt to build a GPU server with many GPUs running at 8x.

 

[Markfw]

Yes, single socket. Going to attempt to build a GPU server with many GPUs running at 8x.

x399 ? 4 GPUs enough ? ASRock Taichi ?

 

[Skillz]

8 GPUs is the target.

 

[Markfw]

8 GPUs is the target.

What motherboards support that many ? This one does 7....

Are you a human?

www.newegg.com

 

[Skillz]

I will post it when I get home from work, but it's basically a ASRock server board with 4 16x slots and 3 8x slots. I got some adapters to turn those 16x slots into two 16x (wired for 8x) slots and risers that turn the 8x slots into 16x slots.

Lots more information on the teams forum. But I'll cross post it here this afternoon after work.

 

[Markfw]

This one

Are you a human?

www.newegg.com

I have 4 of those.

 

[Markfw]

Santa came late this year

 

[cellarnoise]

Nice Mark!

In my mind I was so close to coming up with a plan to out CPU you, but I'll hit the old "mind sleep" button now.

You do know that the 5950xs don't worked stacked like that though. Well maybe with some serious soldering?

 

[Skillz]

This one

Are you a human?

www.newegg.com

I have 4 of those.

Yes that is the board.

 

[Skillz]