Another big unveil made by AMD during its recent live event is its highly anticipated EPYC Milan-X server CPU lineup which consists of four processors namely the EPYC 7773X features 64 cores and 128 threads, the EPYC 7573X features 32 cores and 128 threads, the EPYC 7473X features 24 cores and 48 threads while the EPYC 7373X features 16 cores and 32 threads.
The models along with their OPN codes are:
- EPYC 7773X 64 Core (100-000000504)
- EPYC 7573X 32 Core (100-000000506)
- EPYC 7473X 24 Core (100-000000507)
- EPYC 7373X 16 Core (100-000000508)
Firstly the flagship AMD EPYC 7773X rocks 64 cores, 128 threads, and features a maximum TDP of 280W and the clock speeds of the flagship are maintained at 2.2 GHz base and 3.5 GHz boost while the cache amount will drive up to an insane 768 MB.
Secondly, we have the EPYC 7573X featuring 32 cores and 64 threads with a 280W TDP and the clock speeds are kept at 2.8 GHz and the boost clock is rated at up to 3.6 GHz. The total cache is 768 MB for this SKU which is the same as the flagship SKU.
Then the EPYC 7473X is a 24 core and 48 thread variant with a 2.8 GHz base and 3.7 GHz boost clock and comes with a TDP of 240W on the other hand we have the 16 core and 32 thread EPYC 7373X which has a 240W TDP with a base clock of 3.05 GHz and 3.8 GHz boost clock and 768 MB of cache.
AMD EPYC Milan-X 7003X Server CPU (Preliminary) Specs:
| CPU Name | Cores / Threads | Base Clock | Boost Clock | LLC (3D SRAM) | L3 Cache (V-Cache + L3 Cache) | L2 Cache | TDP | Price (Retailer) | Price (MSRP) |
| AMD EPYC 7773X | 64 / 128 | 2.2 GHz | 3.500 GHz | Yes (64 MB per CCD) | 512 + 256 MB | 32 MB | 280W (cTDP 225W Down / 280W Up) | $10,476.99 US | TBA |
| AMD EPYC 7763 | 64 / 128 | 2.45 GHz | 3.500 GHz | N/A | 256 MB | 32 MB | 280W (cTDP 225W Down / 280W Up) | $9424.99 US | $7890 US |
| AMD EPYC 7573X | 32 / 64 | 2.80 GHz | 3.600 GHz | Yes (64 MB per CCD) | 512 + 256 MB | 32 MB | 280W (cTDP 225W Down / 280W Up) | $6654.99 US | TBA |
| AMD EPYC 7543 | 32 / 64 | 2.80 GHz | 3.700 GHz | N/A | 256 MB | 32 MB | 225W (cTDP 225W Down / 240W Up) | $4291.99 US | $3761 US |
| AMD EPYC 7473X | 24 / 48 | 2.80 GHz | 3.700 GHz | Yes (64 MB per CCD) | 512 + 256 MB | 12 MB | 240W (cTDP 190W Down / 250W Up) | $4643.99 US | TBA |
| AMD EPYC 7443 | 24 / 48 | 2.85 GHz | 4.000 GHz | N/A | 128 MB | 12 MB | 200W (cTDP 165W Down / 200W Up) | $2293.99 US | $2010 US |
| AMD EPYC 7373X | 16 / 32 | 3.05 GHz | 3.800 GHz | Yes (64 MB per CCD) | 512 + 256 MB | 8 MB | 240W (cTDP 190W Down / 250W Up) | $5595.99 US | TBA |
| AMD EPYC 7343 | 16 / 32 | 3.20 GHz | 3.900 GHz | N/A | 128 MB | 8 MB | 190W (cTDP 165W Down / 200W Up) | $1784.99 US | $1565 US |
Some of the highlighted features of the AMD EPYC Milan-X lineup include:
- 3rd Gen EPYC with AMD 3D V-Cache will offer the same capabilities and features as the 3rd Gen EPYC processors and they will be drop-in compatible with a BIOS upgrade, delivering easy adoption and performance enhancements.
- Microsoft Azure HPC virtual machines featuring 3rd Gen EPYC with AMD 3D V-Cache are available today in Private Preview, with a broad rollout in the coming weeks. More information on performance and availability is available here.
- 3rd Gen EPYC CPUs with AMD 3D V-Cache will launch in Q1 2022. Partners including Cisco, Dell Technologies, Lenovo, HPE, and Supermicro are planning to offer server solutions with these processors.
AMD has announced that Milan-X will have broad platform availability through their partners such as CISCO, DELL, HPE, Lenovo, and Supermicro while the launch is planned for Q1 of 2022.
AMD EPYC CPU Families:
| Family Name | AMD EPYC Naples | AMD EPYC Rome | AMD EPYC Milan | AMD EPYC Milan-X | AMD EPYC Genoa | AMD EPYC Bergamo | AMD EPYC Turin |
| Family Branding | EPYC 7001 | EPYC 7002 | EPYC 7003 | EPYC 7003X? | EPYC 7004? | EPYC 7005? | EPYC 7006? |
| Family Launch | 2017 | 2019 | 2021 | 2022 | 2022 | 2023-2024? | 2024-2025? |
| CPU Architecture | Zen 1 | Zen 2 | Zen 3 | Zen 3 | Zen 4 | Zen 4 | Zen 5 |
| Process Node | 14nm GloFo | 7nm TSMC | 7nm TSMC | 7nm TSMC | 5nm TSMC | 5nm TSMC | 3nm TSMC? |
| Platform Name | SP3 | SP3 | SP3 | SP3 | SP5 | SP5 | SP5 |
| Socket | LGA 4094 | LGA 4094 | LGA 4094 | LGA 4094 | LGA 6096 | LGA 6096 | LGA 6096 |
| Max Core Count | 32 | 64 | 64 | 64 | 96 | 128 | 256 |
| Max Thread Count | 64 | 128 | 128 | 128 | 192 | 256 | 512 |
| Max L3 Cache | 64 MB | 256 MB | 256 MB | 768 MB? | 384 MB? | TBD | TBD |
| Chiplet Design | 4 CCD’s (2 CCX’s per CCD) | 8 CCD’s (2 CCX’s per CCD) + 1 IOD | 8 CCD’s (1 CCX per CCD) + 1 IOD | 8 CCD’s with 3D V-Cache (1 CCX per CCD) + 1 IOD | 12 CCD’s (1 CCX per CCD) + 1 IOD | 12 CCD’s (1 CCX per CCD) + 1 IOD | TBD |
| Memory Support | DDR4-2666 | DDR4-3200 | DDR4-3200 | DDR4-3200 | DDR5-5200 | DDR5-5600? | DDR5-6000? |
| Memory Channels | 8 Channel | 8 Channel | 8 Channel | 8 Channel | 12 Channel | 12 Channel | TBD |
| PCIe Gen Support | 64 Gen | 128 Gen 4 | 128 Gen 4 | 128 Gen 4 | 128 Gen 5 | TBD | TBD |
| TDP Range | 200W | 280W | 280W | 280W | 320W (cTDP 400W) | 320W (cTDP 400W) | 480W (cTDP 600W) |
