AMD has its own reason for launching the 3D V-Cache variant only the 7 5800X3D option for mainstream 8 core gamers. The real reason for the brand to make it exclusive for just 1 processor might have the reason for TSMC’s 3D tech supply and manufacturing capabilities.
The Only 3D V-Cache CPU will be AMD Ryzen 7 5800X3D, Might Have Limited Availability Due To TSMC’s Manufacturing & Supply troubles
Now you guys may be thinking about why it is so hard to manufacture Ryzen 7 5800X, a 7nm chip with 3D V-Cache? Well manufacturing a 7nm chip isn’t that difficult as TSMC has years of expertise in and their 7nm node has some truly high production. The main point here is the expansion of a 3D V-Cache in the CPU that makes use of TSMC’s brand new 3D SoIC technology.
According to DigiTimes (via PCGamer), the TSMC 3D SoIC technology is still in its babyhood and has yet reached volume production. And also, the AMD Ryzen 7 5800X3D isn’t the only 3D V-Cache CPU out there. You might remember AMD’s EPYC Milan-X lineup that was announced a few months ago? Well yes, that one also comes with 3D V-Cache and not just a singular stack but several stacks. AMD Ryzen 7 5800X3D uses just one 64 MB SRAM stack compared to Milan-X flagship EPYC 7773X makes use of eight 64 MB stacks for a total of 512 MB L3 cache. And considering the big performance advantages of extra cache in enterprise workloads, there’s a huge need for these chips in the individual segment.
AMD decided to prefer its Milan-X chips over Ryzen 3D chips, and thus, we only got one Vermeer-X chip in the whole pile. AMD did show a prototype Ryzen 9 5900X3D last year but that is not the priority. The prototype which was shown by AMD featured 3D Stacking on a single stack, and that also introduces the query of what if AMD had just enabled Ryzen 9 5900X and 5950X with just a single 3D stacked CCD, that might be worked, or what the potential latencies and performance for those would’ve looked like. AMD shows the same performance boost for the 12 core prototypes running on a 1 stacked die but we guess the amount must be really limited if even those chips didn’t make their way to the main production line.
But there’s hope that TSMC is making a brand new more advanced packaging facility in Chunan, Taiwan. By the end of this year, the new plant is expected to become operational. So that we can expect adequate supply and volume production of TSMC’s 3D SoIC technology and hopefully see coming iterations of Zen 4 with the identical packaging technology.
AMD Ryzen ‘Zen 3D’ Desktop CPU Expected Features:
- Minor optimization on TSMC’s 7nm process node
- Up to 64 MB of Stacked cache per CCD (96 MB L3 per CCD)
- Up To 15% Average performance improvement in gaming
- Compatible With AM4 Platforms and existing motherboards
- Same TDP as existing consumer Ryzen CPUs
| CPU Name | Architecture | Cores/Threads | Base Clock | Boost Clock | Cache (L2+L3) | PCIe Lanes (Gen 4 CPU+PCH) | TDP | Price |
|---|---|---|---|---|---|---|---|---|
| AMD Ryzen 9 5950X | 7nm Zen 3 | 16/32 | 3.4 GHz | 4.9 GHz | 72 MB | 24 + 16 | 105W | $799 US |
| AMD Ryzen 9 5900X | 7nm Zen 3 | 12/24 | 3.7 GHz | 4.8 GHz | 70 MB | 24 + 16 | 105W | $549 US |
| AMD Ryzen 9 5900 | 7nm Zen 3 | 12/24 | 3.0 GHz | 4.7 GHz | 64 MB | 24 + 16 | 65W | $499 US? |
| AMD Ryzen 7 5800X3D | 7nm Zen 3 | 8/16 | 3.4 GHz | 4.5 GHz | 64 MB + 32 MB | 24 + 16 | 105W | TBD |
| AMD Ryzen 7 5800X | 7nm Zen 3 | 8/16 | 3.8 GHz | 4.7 GHz | 36 MB | 24 + 16 | 105W | $449 US |
| AMD Ryzen 7 5800 | 7nm Zen 3 | 8/16 | 3.4 GHz | 4.6 GHz | 32 MB | 24 + 16 | 65W | $399 US? |
| AMD Ryzen 5 5600X | 7nm Zen 3 | 6/12 | 3.7 GHz | 4.6 GHz | 35 MB | 24 + 16 | 65W | $299 US |
| AMD Ryzen 7 4700 | 7nm Zen 2 | 8/16 | 3.6 GHz | 4.4 GHz | 12 MB | TBA (Gen 3) | 65W | TBD |
| AMD Ryzen 5 4600 | 7nm Zen 2 | 6/12 | 3.6 GHz | 4.1 GHz | 11 MB | TBA (Gen 3) | 65W | TBD |
| AMD Ryzen 3 4300 | 7nm Zen 2 | 4/8 | 3.8 GHz | 4.0 GHz | 6 MB | TBA (Gen 3) | 65W | TBD |
