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.

AMD EPYC Milan-X CPUs with 3D V-Cache announced

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)