AMD Silently Rolls Out New EPYC Milan CPUs 2.5 Years After Launch

AMD has launched its Zen 4 architecture for a while now; however, there still appears to be a demand for Zen 3 processors - at least in the server and data center space. A week ago, the chipmaker quietly expanded the company's 3rd Generation EPYC 7003 (Milan) lineup with six new SKUs.

Milan came out in March of 2021 and has since been replaced by the 4th Generation EPYC 9004 (Genoa) series. The fact that AMD is launching new Milan processors a little over two and a half years after the initial launch implies there's still a demand to fulfill. Either that or AMD is simply disposing of leftover Zen 3 silicon. It adds up since AMD is shifting its focus over to Zen 4 with a plethora of planned EPYC products, including Genoa-X with 3D V-Cache, Bergamo, and Siena, with the latter two being based on Zen 4c, a denser variant of Zen 4. Then, there's also the future Zen 5-powered 5th Generation EPYC Turin that will come out in 2024.

AMD (via momomo_us) has fleshed out its Milan portfolio on September 5. The six new Milan models include EPYC 7663P, EPYC 7643P, EPYC 7303P, EPYC 7303, EPYC 7203P, and EPYC 7203. The EPYC 7663P and EPYC 7643P are fundamentally the single-socket versions of the EPYC 7663 and EPYC 7643, retaining the exact specifications. The bright side is that EPYC 7663P and EPYC 7643P have MSRPs around half of their regular counterparts. The SKUs represent a significant saving for companies with no plans to use a dual-socket configuration.

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Model	Launch Date	Cores	Threads	Base Clock (GHz)	Boost Clock (GHz)	L3 Cache (MB)	1kU Pricing	Socket Count	PCIe 4.0 Lanes	TDP (W)	cTDP (W)
EPYC 7763	03/15/2021	64	128	2.45	3.500	256	$7,890	1P/2P	128	280	225-280
EPYC 7713P	03/15/2021	64	128	2.00	3.675	256	$5,010	1P	128	225	225-240
EPYC 7713	03/15/2021	64	128	2.00	3.675	256	$7,060	1P/2P	128	225	225-240
EPYC 7663P	09/05/2023	56	112	2.00	3.500	256	$3,139	1P	128	240	225-280
EPYC 7663	03/15/2021	56	112	2.00	3.500	256	$6,366	1P/2P	128	240	225-240
EPYC 7643P	09/05/2023	48	96	2.30	3.600	256	$2,722	1P	128	225	225-240
EPYC 7643	03/15/2021	48	96	2.30	3.600	256	$4,995	1P/2P	128	225	225-240
EPYC 75F3	03/15/2021	32	64	2.95	4.000	256	$4,860	1P/2P	128	280	225-280
EPYC 7543P	03/15/2021	32	64	2.80	3.700	256	$2,730	1P	128	225	225-240
EPYC 7543	03/15/2021	32	64	2.80	3.700	256	$3,761	1P/2P	128	225	225-240
EPYC 7513	03/15/2021	32	64	2.60	3.650	128	$2,840	1P/2P	128	200	165-200
EPYC 7453	03/15/2021	28	56	2.75	3.450	64	$1,570	1P/2P	128	225	225-240
EPYC 74F3	03/15/2021	24	48	3.20	4.000	256	$2,900	1P/2P	128	240	225-240
EPYC 7443P	03/15/2021	24	48	2.85	4.000	128	$1,337	1P	128	200	165-200
EPYC 7443	03/15/2021	24	48	2.85	4.000	128	$2,010	1P/2P	128	200	165-200
EPYC 7413	03/15/2021	24	48	2.65	3.600	128	$1,825	1P/2P	128	180	165-200
EPYC 73F3	03/15/2021	16	32	3.50	4.000	256	$3,521	1P/2P	128	240	225-240
EPYC 7343	03/15/2021	16	32	3.20	3.900	128	$1,565	1P/2P	128	190	165-200
EPYC 7313P	03/15/2021	16	32	3.00	3.700	128	$913	1P	128	155	155-180
EPYC 7313	03/15/2021	16	32	3.00	3.700	128	$1,083	1P/2P	128	155	155-180
EPYC 7303P	09/05/2023	16	32	2.40	3.400	64	$594	1P	128	130	120-150
EPYC 7303	09/05/2023	16	32	2.40	3.400	64	$604	1P/2P	128	130	120-150
EPYC 72F3	03/15/2021	8	16	3.70	4.100	256	$2,468	1P/2P	128	180	165-200
EPYC 7203P	09/05/2023	8	16	2.80	3.400	64	$338	1P	128	120	120-150
EPYC 7203	09/05/2023	8	16	2.80	3.400	64	$348	1P/2P	128	120	120-150

Meanwhile, the EPYC 7203 and EPYC 7203P are the new entry-level Milan SKUs. They feature an octa-core, 16-thread design with a 2.8 GHz base clock and 3.4 GHz boost clock. The duo also offer 64MB of L3 cache and a modest 120W TDP. While their core count isn't anything to brag about, the EPYC 7203 and EPYC 7203P are still Milan parts by nature and continue to deliver 128 PCIe 4.0 lanes. The EPYC 7203 and EPYC 7203P are the cheapest Milan SKUs that money can buy. The EPYC 7203 has a $348 MSRP, while the EPYC 7203P costs just $10 less.

On the other hand, the EPYC 7303 and EPYC 7303P offer 16 cores and 32 threads but with rocks the same 64MB L3 cache as the EPYC 7203 and EPYC 7203P. Their base clocks are 400 MHz slower, but the boost clock remains unchanged. Despite having double the cores, the EPYC 7303 and EPYC 7303P only draw 10W more than the EPYC 7203 and EPYC 7203P. Regarding pricing, the EPYC 7303 and EPYC 7303P have $604 and $594 MSRPs, respectively. The difference between the 1P and 2P parts is just $10.

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Zhiye Liu is a news editor, memory reviewer, and SSD tester at Tom’s Hardware. Although he loves everything that’s hardware, he has a soft spot for CPUs, GPUs, and RAM.

1 Comment Comment from the forums

Nikolay Mihaylov

bjorka1 said:
EPYC 7303 would be the game changer of this series. Their processing capability and speed is far better than any other models available. Basically it's a server processor, that's why it released silently.

I would be wary whether the 64MB L3 cache implies that the 7303(P) are implemented with 2 CPU chiplets only. If that is the case, they can not saturate the 8 channel memory controller. One needs at least 4 chiplest for that due to the speed of the InfinityFabric links. They might be a good fit for IO-oriented workloads, where the unutilised bandwidth is used for the IO transfers. But that is to say, they seem to be quite specialized SKUs.
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AMD EPYC 7003 (Milan) Specifications