AMD EPYC “Milan-X” specifications leak out, up to 64 cores, 280W TDP and 768MB L3 cache

Published: 16th Sep 2021, 08:51 GMT   Comments

AMD Milan-X specifications have been leaked

AMD EPYC Milan-X is the next-generation server CPU platform featuring a stacked L3 cache, greatly expanding the size of the available cache. 

AMD Milan-X, which was first revealed by ExecutableFix back in May, is a server CPU series to feature AMD’s new packaging technology known as X3D (3D V-Cache). This hybrid of 2.5 and 3D packaging technology would feature AMD Genesis-IO die along with stacked chiplets featuring a very large third level of cache, assumingly going up to 768MB according to the latest leak.

Executable Fix has new information on the series, including the full specs of the four processors arriving in the AMD EPYC 7003 portfolio. According to the series of tweets from the leaker, the flagship Milan-X CPU known as 7773X offering 64 cores and 128 threads would be clocked at 2.2 GHz up to 3.5 GHz with a TDP of 280W. This CPU, along with the other ‘cut-down parts, would all have 768MB of L3 Cache, which is almost 3 times as much as the original Milan series (up to 256MB).

The leaker also revealed the specs of 7573X, 7473X, and 7373X. Those SKUs would offer 32, 24, and 16 cores respectively. The 7473X and 7373X would be 240W TDP SKUs, but they would supposedly retain 768MB of L3 cache.

A 768MB of L3 cache likely means that each Core Complex has 32MB of its own, which has not changed since original Milan, but the additional 64MB of V-Cache would be attached to each CCD. In other words, each processor would offer 8x 32 MB + 8x64MB of V-Cache.

AMD 7003X “Milan-X” Specs
VideoCardz.comCoresBase ClockBoost ClockTDPL3 Cache
EPYC 7773X
 
64C/128T
 
2.2 GHz
 
3.5 GHz
 
280W
 
768 MB
EPYC 7573X
 
32/64T
 
2.8 GHz
 
3.6 GHz
 
280W
 
768 MB
EPYC 7473X
 
24C/48T
 
2.8 GHz
 
3.7 GHz
 
240W
 
768 MB
EPYC 7373X
 
16C/32T
 
3.05 GHz
 
3.8 GHz
 
240W
 
768 MB

Last month, another leaker (momomo_us) found the first retailer listings of the Milan-X series, with pricing going up to 10477 USD for the flagship model, a shy 11% increase over EPYC 7763.

AMD Milan-X Pricing, Source: @momomo_us

AMD has not publicly confirmed the Milan-X series yet, unlike Ryzen with 3D V-Cache which is now expected early next year.

Source: @ExecuFix, @momomo_us




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