AMD Ryzen 7 9800X3D Chip Teardown Reveals Shiny Blue 3D V-Cache Stack Beneath Zen 5 CCD

AMD’s Ryzen 7 9800X3D has been torn apart to reveal its next-generation 3D V-Cache stack, which sits beneath the Zen 5 CCD.

Chip Teardown Reveals 2nd Gen 3D V-Cache Stack on AMD Ryzen 7 9800X3D CPU

Update (7/11/2024) – It appears that the shiny blue part of the matrix is ​​the Zen 5 CCD itself, while the gold part is the 3D V-Cache stack.

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— Huang514613 (@94G8LA) 7 November 2024

The AMD Ryzen 7 9800X3D launches at retail today, but one brave person went ahead and did a full chip tear of its chip to unravel its 3D V-Cache mysteries. the user”万扯淡” on social media platform Weibo posted a video in which he hands over the Ryzen 7 9800X3D CPU, but doesn’t stop there. He goes one step ahead and tears apart the entire CCD to see what’s underneath.

Although it is fairly easy to remove the AMD Ryzen 7 9800X3D CPU with a parting tool, it appears that the individual did not have access to such a tool and instead resorted to a heat gun to melt away the solder under the IHS and then separate ad. When we remove the chip we can see the CCD & IO die which are the only two chiplets used on this specific SKU. We previously posted a shared image of the Ryzen 7 9800X3D, which looks remarkably similar to the 9700X, which is to be expected.

Since you can’t see the 3D V-Cache stack or the CCD without removing the protective shield over the die, the user took a screwdriver to tear open the CCD, revealing the Zen 5 CCD layers first. The CCD was further punctured to reveal the shiny blue 3D V-Cache stack, which lies below the CCD this time. The user compared it to an already dissected 7800X3D, which has the shiny gold 3D V-Cache stack on top of the CCD.

With this new 3D V-cache stacking approach, AMD improved the thermal headroom of its Zen 5 X3D CPUs, enabling higher clock speeds and delivering full overclocking capability. There’s a reason why the Ryzen 7 9800X3D outperforms the 9700X, even though the former runs at lower clock speeds. Now there are reports that AMD may be looking into more advanced X3D packaging techniques, although time will tell if we’ll see them in action.

With that said, 3D V-Cache has been a game changer ever since it was introduced with the 5800X3D and the 9800X3D continues to live up to its name as the fastest gaming chip on the planet.