Info 64MB V-Cache on 5XXX Zen3 Average +15% in Games

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Kedas

Senior member
Dec 6, 2018
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Well we know now how they will bridge the long wait to Zen4 on AM5 Q4 2022.
Production start for V-cache is end this year so too early for Zen4 so this is certainly coming to AM4.
+15% Lisa said is "like an entire architectural generation"
 
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jpiniero

Lifer
Oct 1, 2010
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I am not sure how it works, whether these are discounts or rebates.

I am curious what happens with 5800x3d is released, if there is going to be realignment of official MSRPs for all Zen 3 processors...

Maybe you could say that the 5800X MSRP has been unofficially cut to like $360-370. I suppose they could make it official then.
 

Mopetar

Diamond Member
Jan 31, 2011
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I wonder if there's any reason to keep the 5800X around when it was the least popular of the whole lineup and with the 5800X3D available there's little reason to get a 5800X over a 5600X or 5900X for most people.
 

RnR_au

Platinum Member
Jun 6, 2021
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Maybe you could say that the 5800X MSRP has been unofficially cut to like $360-370. I suppose they could make it official then.
One of the major online retailers here in Australia have begun selling the 5800X for $AU499 which is close to $US360.

Edit: several major retailers.. at least one with free shipping too.
 

Ranulf

Platinum Member
Jul 18, 2001
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I wonder if there's any reason to keep the 5800X around when it was the least popular of the whole lineup and with the 5800X3D available there's little reason to get a 5800X over a 5600X or 5900X for most people.

All depends on prices. At anything over $450, the 5900x doesn't seem that worth it to me compared to a $300-350 5800x. Demand though as it staying at $475-550.
 

Joe NYC

Diamond Member
Jun 26, 2021
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All depends on prices. At anything over $450, the 5900x doesn't seem that worth it to me compared to a $300-350 5800x. Demand though as it staying at $475-550.

Now that we know that 5800x3d beats 5900x in gaming, one has to wonder of what sort of tasks you would be running that really need > 8 cores, since the extra cores are not needed for gaming.

With the release of AMD benchmarks, we now know that the only reason 5900x and 5950x were faster is some select games is because of the extra 32 MB cache in their 2nd chiplet.

1644152355928.png
 

LightningZ71

Platinum Member
Mar 10, 2017
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In my kid's case, he tends to stream out to his friends, while hosting a game server, while also playing the same games, while havong another monitor filled with discord, youtube, etc. I've seen his task manager. He could use more cores than his 2700x has.
 

MadRat

Lifer
Oct 14, 1999
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You only have so many connections in a home. Unless you bought a business connection I doubt you see any difference between 6 and 12 cores in that scenario.
 

ozzy702

Golden Member
Nov 1, 2011
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In my kid's case, he tends to stream out to his friends, while hosting a game server, while also playing the same games, while havong another monitor filled with discord, youtube, etc. I've seen his task manager. He could use more cores than his 2700x has.

Which games and servers? We talking minecraft? My son is starting to get into the same stuff and his i7-7700 is probably not going to cut it for long.
 

LightningZ71

Platinum Member
Mar 10, 2017
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His biggest time sink recently has been "From the depths", which, with it's recent switch to a recent Unity engine, is much friendlier to multi-core processors due to better multi-threading. However, he has certainly played his share of Minecraft, and, of course, indulges in Fortnite with his siblings fairly often. (as an aside, having 5 kids, and watching them all go to town in Fortnite together is just both hilarious and amazing) He plays a lot of other games on steam and in other launchers too. His brother just bought Ace Combat 7 and they've been playing that. He has a long running Factorio challenge with one of his friends going too.

The 2700x actually holds up quite well in most of his games. It pairs well with his 1070ti in his desktop and it always gives him playable framerates at 1080p. He hasn't been using his desktop as much lately though as he recently upgraded his laptop (Christmas!) to a 5900hx/6800m model and, well, it is just faster across the board.
 

nicalandia

Diamond Member
Jan 10, 2019
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Zucker2k

Golden Member
Feb 15, 2006
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BorisTheBlade82

Senior member
May 1, 2020
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@BTRY B 529th FA BN
Of course there has not been any official information from AMD. Also Chips and Cheese did not explicitly mention it when they measured its latency.
But seeing that latency only increased a bit I would guess that associativity stayed the same.
 

nicalandia

Diamond Member
Jan 10, 2019
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Sorry if this has been discussed before but will the 5800X3D L3 cache be 16-way or will that change?

Thanks to the most recent Leak(like the one where some mad lad was able to OC 128 Cores of Milan X to 4.8 Ghz on air) we can see that a single 64C/128T Milan-X is using 768 L3$ with 16-Way, as expected as they are trying to make the 3D V Cache to appear as just additional L3$ to the OS


Milan-X with 768 Total L3$(512 From a Single Stack 3D V Cache)
1644346170382.png


Also going from the Zen4 Leaked data(Gigabyte) the L3$ on Zen4 is still 16-way, so any further 3D V Cache on Zen4 will remain the same at 16-way

1644347913236.png

 
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nicalandia

Diamond Member
Jan 10, 2019
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Can anyone with access to ChampSim simulator or smarter than me can update Chips and Cheese gaming/application performance gains with the currently know 3-4 cycle


1644350140311.png

1644350737945.png
 

Saylick

Diamond Member
Sep 10, 2012
4,033
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Someone overclocked dual Milan-X with V-Cache to 7773X to 4.8 GHz on all 128 cores.


WCCFTech didn't include this in their article (I wonder why...) but Videocardz clarified the OC:
The creator is using a special EPYC Milan/Rome ES/QS overclocking tool by Uat4 and ExecutableFix. This tool unlocks power limits and increases maximum all-core frequencies and voltages much higher than AMD intended, but only for engineering samples. However, this is not true overclocking. ExecutableFix explained to us that the frequency reported by CPU-Z software is not a real frequency, but rather a target. This is probably why Kenaide did not provide any benchmark results using a 4.8 GHz OC session, it would have simply shown smaller than expected performance uplift.
 

StinkyPinky

Diamond Member
Jul 6, 2002
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Someone overclocked dual Milan-X with V-Cache to 7773X to 4.8 GHz on all 128 cores.


How is that even physically possible? I was also under the impression the stacked cache ads a bit more heat since the 5800X3D is clocked lower.