News AMD's Ryzen 3D V-Cache Chips Have Been in Development For Years

JayNor

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May 31, 2019
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"demonstrating incredible performance gains..."
really? let's see your numbers.

btw, there was an AMD tomshardware in March,2019. "Ryzen Up: AMD to 3D Stack DRAM and SRAM on Processors"
 

Howardohyea

Proper
May 13, 2021
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is it just me or does AMD really likes caches?

The i9 10980XE only uses 24.75 MB of L3 cache while AMD's 3950X and 5950X is more than double at 64MB. What's the reason behind a smaller cache in Intel or will they see the same jump in performance with more cache?
 

MasterMadBones

Distinguished
Dec 26, 2012
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is it just me or does AMD really likes caches?

The i9 10980XE only uses 24.75 MB of L3 cache while AMD's 3950X and 5950X is more than double at 64MB. What's the reason behind a smaller cache in Intel or will they see the same jump in performance with more cache?
Both AMD and Intel architectures like to have more cache. Intel has larger cores, which leaves less die space for lots of cache. Combine that with the fact that Intel still uses a monolithic design, which means their total die area budget is lower for the same yield.

Architecturally, AMD does theoretically benefit slightly more from more cache due to the higher memory latency, but Intel's L3 cache is a little more sophisticated with the way it works.
 

Conahl

Prominent
Apr 24, 2020
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"demonstrating incredible performance gains..."
really? let's see your numbers.
  • DOTA2 (Vulkan): +18%
  • Gears 5 (DX12): +12%
  • Monster Hunter World (DX11): +25%

  • League of Legends (DX11): +4%
  • Fortnite (DX12): +17%
from anandtech, not sure if it is incredible performance gains, but still pretty decient.
 

JayNor

Commendable
May 31, 2019
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The numbers presented by Anandtech are from AMD's claims for FPS boost while running games... 15% overall, on average while using an unnamed graphics card.

Projecting a node jump 15% overall processor performance update from this is a stretch.
 

Conahl

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Apr 24, 2020
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Projecting a node jump 15% overall processor performance update from this is a stretch.
considering AMD's track record with Zen from the start, and the fact that what they have stated for performance gains over previous gens, turned out to be pretty accurate, its probably safe to believe them.
 
Reactions: Jim90
is it just me or does AMD really likes caches?
It's the one place they can really stick it to Intel where it hurts.

Used to be AMD was always a process node behind Intel so they had to have less cache, because it was more expensive in die area for them. Well now the shoe is on the other foot and they should take advantage of it while they can. It wasn't that long ago when mainstream Intel quadcores had 12MB L2 while contemporary AMD only 2MB plus another 2MB L3 or triple the total amount.

More cache improves hitrate, which improves performance if latency isn't also much worse. I had expected by now that they would've added a chiplet for a simply huge L4 with only around half the latency of RAM--like how Intel had the Crystal Well eDRAM separate chip on the CPU package. Wasn't 128MB L4 large for 2013? I mean the chips had 6MB L3 too.
 
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