AMD’s Ryzen CPUs are now well established in the desktop PC market, comprising dual-core all the way up to eight-core models suiting a range of applications, but it appears that these are far from the limit to AMD’s ambition this year. A new CPU class spotted in the wild as engineering samples, CPUs which could herald the release of a High End Desktop Platform based on the AMD Zen server chips.

Codenamed Whitehaven and listed alongside corresponding Hardware IDs, the designs are ostensibly a bigger brother to the mainstream Ryzen range. Rather than being limited to eight physical cores with SMT, Whitehaven CPUs would incorporate up to sixteen cores via four CCX clusters; combined with Simultaneous Multithreading the platform would support up to 32 independent threads, more even than Intel’s current flagship HEDT processor.

Naturally the physical dimensions of the chip would necessitate a new socket design, and new motherboard chipset. The former would be catered to by the new S3 socket (long-form SP3r2 LGA), which would make the chips pinless much like current Intel models. As for new motherboards, it’s also rumoured that an X399 chipset will supplant the current X370 at the top of the stack and support Whitehaven CPUs exclusively alongside quad-channel DDR4 memory.

Current 8-Core Ryzen models are rated at a TDP of 95W, so without a substantial step down in frequency support it’s likely that 16-core Whitehaven parts would be between 135 and 150W. Supposedly the chips will have base frequencies of 3.1GHz that boost to an impressive 3.6GHz, but as with the rest of the leaked information should be taken with a pinch of salt. Notably not present is information regarding PCI-Express lane support.

Can AMD break Intel’s stranglehold on the HEDT and x86 server market? That remains to be seen, but the answer might be clearer after Computex.


Latest AMD Engineering Samples
AMD Eng Sample: Turbo (MHz) Base (MHz) Cores Threads Platform
2D3101A8UGAF4_36/31_N 3600 3100 16 32 AMD Whitehaven
1D3101A8UGAF3_36/31_N 3600 3100 16 32 AMD Whitehaven
2D2701A9UC9F4_32/27_N 3200 2700 12 24 Alienware R3
ZM2111C1Y4382_34/21/13/06_9874 2500* 2100* 2 4 AMD Gardenia
2M3001C3T4MF2_33/30_N + AMD 15DD 3300 3000 4 8 AMD Tambourine
2M2000C4T4MF2_33/20_N + AMD 15DD 3300 2000 4 8 AMD Tambourine
2M1901C4T4MF2_30/19_N + AMD 15DD 3000 1900 4 8 AMD Mandolin
ZG1300T5L8798_00/21/17/09_9924 + Gladius B0 2093* 1594* ? 8 AMD Dublin and MunsterCRB
2M1901C4T4MF2_30/19_N 3000 1900 4 8 AMD Mandolin
2D3151A2M88E4_35/31_N 3500 3100 8 16 Acer Myrtle CRB

* as detected

Small reminder what those numbers stand for. Looks like cores are not in hexadecimal format, but something like this: C = 12, D = 13 … G = 16.

EXAMPLE: AMD Eng Sample: 2D2701A9UC9F4_32/27_N
Value What does it stand for? Explanation
2 Engineering Sample Generation 1: 1st Gen, 2: 2nd Gen, Z: Qual. Sample
D Platform S: Server, D: Desktop
270 Base frequency  2.7 GHz 
1 Revision  1st Revision
A9 TDP A2: 95W, AU: 65W, A8: ?, A9: ?
U Socket M = AM4, V = SP3, U = ?
C Numbers of cores C = 12, G = 16
9 Cache configuration
F4 Stepping E4 = A-Step,  F4 = B-Step
32/27 Turbo / Base Clock 3.2 / 2.7 GHz


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