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Samsung Rings B-Die Memory Death Knell

Overclockers love Samsung's B-Die memory, but the company is unceremoniously killing it off. According to the consumer DIMM section of Samsung’s latest Product Guide, B-Die memory "dies," M-Die matures, A-Die ascends, and 32GB UDIMMs really are available in Q2 2019.

We’ve yet to see whether A-die chips will have the overclocking flexibility to match or exceed that of the current B-Die products that have become the memory of choice for overclockers on Intel and AMD platforms alike. 

The new A-Die offers the advantage of higher available chip density, particularly to module assemblers/programmers (i.e., the companies we’re accustomed to supplying our XMP-rated DIMMs). The 16Gb (sixteen gigabit) M-Die chips that were supposed to have brought us 32GB consumer DIMMs a year ago appear to have been reserved for Samsung’s own-brand modules, and the best guess from our suppliers has been that the server sector has drawn that supply dry.

4.7 260Pin DDR4 Non ECC UDIMM

[Table9]260 Pin DDR4 Non ECC UDIMM

DensityPartNumberCompositionComp.VersionInternalBanksRankHeightAvail.
2GBM378A5644EB0256Mx16*4pcs4GbE-die8130mmEOL '181Q
4GBM378A5244CB0256Mx16*4pcs8GbC-die8130mmMP
4GBM378A5244BB0256Mx16*4pcs8GbB-die8130mmEOL '191Q
4GBM378A5244BB0256Mx16*4pcs8GbB-die8130mmEOL '191Q
4GBM378A5143EB2512Mx8*8pcs4GbE-die16130mmEOL '182Q
8GBM378A1K43DB21Gx8*8pcs8GbD-die16130mmCS '182Q
8GBM378A1K43CB21Gx8*8pcs8GbC-die16130mmMP
8GBM378A1K43CB21Gx8*8pcs8GbC-die16130mmMP
8GBM378A1K43BB21Gx8*8pcs8GbB-die16130mmEOL '191Q
8GBM378A1K43BB21Gx8*8pcs8GbB-die16130mmEOL '191Q
8GBM378A1G43EB1512Mx8*16pcs4GbE-die16230mmEOL '182Q
16GBM378A2K43DB11Gx8*16pcs8GbD-die16230mmCS '182Q
16GBM378A2K43CB11Gx8*16pcs8GbC-die16230mmMP
16GBM378A2K43CB11Gx8*16pcs8GbC-die16230mmMP
16GBM378A2K43BB11Gx8*16pcs8GbB-die16230mmEOL '191Q
16GBM378A2K43BB11Gx8*16pcs8GbB-die16230mmEOL '191Q
32GBM378A4G43MB12Gx8*16pcs16GbM-die16230mmCS '182Q
32GBM378A4G43AB12Gx8*16pcs16GbA-die16230mmCS '191Q

SuperBiiz lists part number M378A4G43MB1 as a current, out of stock product, and with no customer reviews…ever. The additional A-Die part number M378A4G43AB1 could potentially increase supply, but only if that increased supply can finally meet the company’s higher-market obligations.

DensityBanksPartNumberPakg&Power, Temp.&SpeedOrg.VDDVoltagePKGAvail.
8GbB-die16Banks (4BankGroups)K4A8G045WB1)BCPB/RC/TD2Gx41.2V78ballFBGA'192Q EOL
K4A8G085WBBCPB/RC/TD1Gx8
8Banks (2BankGroups)K4A8G165WBBCPB/RC/TD512Mx161.2V96ballFBGA
8GbC-die16Banks (4BankGroups)K4A8G045WC1)BCTD/VF/WE2Gx41.2V78ballFBGAMP
K4A8G085WCBCTD/*VF/*WE1Gx8
8Banks (2BankGroups)K4A8G165WCBCTD/*VF/*WE512Mx161.2V96ballFBGA
8GbD-die16Banks (4BankGroups)K4A8G045WD1)BC/TD/VF/WE2Gx41.2V78ballFBGA'184Q CS
K4A8G085WDBC/TD/*VF/*WE1Gx8
16GbA-die16Banks (4BankGroups)K4AAG085WABCTD/*VF/*WE2Gx81.2V78ballFBGA'191Q CS
8Banks (2BankGroups)K4AAG165WABCTD/*VF/*WE1Gx161.2V96ballFBGA
32GbA-die16Banks (4BankGroups)K4AAG085WABCTD/*VF/*WE2Gx81.2V78ballFBGA'191Q CS
8Banks (2BankGroups)K4AAG165WABCTD/*VF/*WE1Gx161.2V96ballFBGA
  • Dark Lord of Tech
    Thanks Crash!
    Reply