Math Tec
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Comparison between two RAM
Hi,
I need to know the difference between
- HPE 128GB (1x128GB) Octal Rank x4 DDR4-2933 CAS-24-21-21 Load Reduced 3DS Smart Memory Kit
And
- HPE 128GB (1x128GB) Octal Rank x4 DDR4-2666 CAS-22-19-19 3DS Load Reduced Memory Kit
I mean which one has better performance
Thanks
I need to know the difference between
- HPE 128GB (1x128GB) Octal Rank x4 DDR4-2933 CAS-24-21-21 Load Reduced 3DS Smart Memory Kit
And
- HPE 128GB (1x128GB) Octal Rank x4 DDR4-2666 CAS-22-19-19 3DS Load Reduced Memory Kit
I mean which one has better performance
Thanks
HPE 128GB (1x128GB) Octal Rank x4 DDR4-2933 CAS-24-21-21 Load Reduced 3DS Smart Memory Kit
https://www.hpe.com/no/en/product-catalog/servers/server-memory/pip.hpe-ddr4-smartmemory.1010999587.html
HPE 128GB (1x128GB) Octal Rank x4 DDR4-2666 CAS-22-19-19 3DS Load Reduced Memory Kit
https://www.hpe.com/ca/en/product-catalog/servers/server-memory/pip.hpe-128gb-1x128gb-octal-rank-x4-ddr4-2666-cas-22-19-19-3ds-load-reduced-smart-memory-kit.1009449824.html
They look very similar but the specs show that the HPE 128GB (1x128GB) Octal Rank x4 DDR4-2933 CAS-24-21-21 Load Reduced 3DS Smart Memory Kit is DIMM native speed (MT/s) = 2933 MT/s
and the HPE 128GB (1x128GB) Octal Rank x4 DDR4-2666 CAS-22-19-19 3DS Load Reduced Memory Kit is DIMM native speed (MT/s) = 2666 MT/s
So HPE 128GB (1x128GB) Octal Rank x4 DDR4-2933 CAS-24-21-21 Load Reduced 3DS Smart Memory Kit is a smidge faster.
https://www.hpe.com/no/en/product-catalog/servers/server-memory/pip.hpe-ddr4-smartmemory.1010999587.html
HPE 128GB (1x128GB) Octal Rank x4 DDR4-2666 CAS-22-19-19 3DS Load Reduced Memory Kit
https://www.hpe.com/ca/en/product-catalog/servers/server-memory/pip.hpe-128gb-1x128gb-octal-rank-x4-ddr4-2666-cas-22-19-19-3ds-load-reduced-smart-memory-kit.1009449824.html
They look very similar but the specs show that the HPE 128GB (1x128GB) Octal Rank x4 DDR4-2933 CAS-24-21-21 Load Reduced 3DS Smart Memory Kit is DIMM native speed (MT/s) = 2933 MT/s
and the HPE 128GB (1x128GB) Octal Rank x4 DDR4-2666 CAS-22-19-19 3DS Load Reduced Memory Kit is DIMM native speed (MT/s) = 2666 MT/s
So HPE 128GB (1x128GB) Octal Rank x4 DDR4-2933 CAS-24-21-21 Load Reduced 3DS Smart Memory Kit is a smidge faster.
$2,175.95 Vs $ 1,498 per stick.
Bear in mind it is far cheaper to use more smaller DIMMs, that LRDIMMs are more expensive than RDIMMs, that for over 1TB per CPU "M" or "L" series CPUs are required and that RAM gets cheaper over time so holding off until you need it. HPE also overclock their smart memory if you set it in CMOS.
Speed table here - https://h20195.www2.hpe.com/v2/Getdocument.aspx?docname=a00019564ENW
Bear in mind it is far cheaper to use more smaller DIMMs, that LRDIMMs are more expensive than RDIMMs, that for over 1TB per CPU "M" or "L" series CPUs are required and that RAM gets cheaper over time so holding off until you need it. HPE also overclock their smart memory if you set it in CMOS.
Speed table here - https://h20195.www2.hpe.com/v2/Getdocument.aspx?docname=a00019564ENW
Scratch that price comparison, the P00928-B21 wasn't genuine HPE so can't be overclocked in a ProLiant.
ASKER
Hi,
So, HPE 128GB (1x128GB) Octal Rank x4 DDR4-2933 CAS-24-21-21 Load Reduced 3DS Smart Memory Kit is better performance than HPE 128GB (1x128GB) Octal Rank x4 DDR4-2666 CAS-22-19-19 3DS Load Reduced Memory Kit.
It will be used in server that has duel CPU type HPE DL380 Gen10 Intel Xeon-Platinum 8180M (2.5GHz/28-core/205W)
Thanks
So, HPE 128GB (1x128GB) Octal Rank x4 DDR4-2933 CAS-24-21-21 Load Reduced 3DS Smart Memory Kit is better performance than HPE 128GB (1x128GB) Octal Rank x4 DDR4-2666 CAS-22-19-19 3DS Load Reduced Memory Kit.
It will be used in server that has duel CPU type HPE DL380 Gen10 Intel Xeon-Platinum 8180M (2.5GHz/28-core/205W)
Thanks
Platinum 8180M Maximum Memory Speed is 2666 MHz so the faster RAM won't be faster with those CPUs AFAIK.
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I already pointed out that their chosen CPU does not support 2933MT/S. They will probably clock down but without running CPU-Z to get the timings for the lower clock speed we can't tell which would be faster. HPE only list the top spec but there will be other specs in the SPD info.
One more difference, the 2933MT/S ones are only available in sample quantities at the moment. For example:-
https://www.samsung.com/semiconductor/dram/module/M386AAK40B40-CWD/
https://www.samsung.com/semiconductor/dram/module/M386AAG40MMB-CVF/
One more difference, the 2933MT/S ones are only available in sample quantities at the moment. For example:-
https://www.samsung.com/semiconductor/dram/module/M386AAK40B40-CWD/
https://www.samsung.com/semiconductor/dram/module/M386AAG40MMB-CVF/
High frequencies have lower timings
Lower frequencies have tighter timings
Not really what else to point out here, what do you mean "the Estimated "Quota""?