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No Dell source cited here establishes 300 GB/s of storage throughput for the PowerEdge R7725xd. Dell’s specifications describe a 2U, storage-dense server that supports up to 24 2.5-inch U.2 Gen5 NVMe drives; the 300 GB/s figure belongs to memory bandwidth measured on a different server. The distinction matters: drive count and interface generation describe the platform, not its measured end-to-end storage speed.
Where the 300 GB/s claim comes from
Dell’s historical article about a two-socket PowerEdge C6525 reports approximately 270–300 GB/s of memory bandwidth for that system using AMD Rome processors. That is a different server and a different performance measure; it is not evidence of R7725xd storage throughput. Dell’s C6525 and AMD Rome article describes the earlier result and its system context.
Memory bandwidth measures the rate at which a processor platform can move data to and from memory under a particular test. Storage throughput measures data transfer to or from storage devices, and depends on drives, configuration, workload, and measurement method. Neither figure can be substituted for the other, and a result from one server model cannot be assigned to another.
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What the R7725xd specifications establish
Dell’s technical guide describes the R7725xd as a 2U rack server with two AMD EPYC 9005-series processor sockets, 24 DDR5 DIMM slots, and support for up to 24 2.5-inch U.2 Gen5 NVMe drives. Dell’s Australia product page lists up to 3 TB of memory for its stated configuration. These are platform capabilities, not a guarantee that every system ships with that amount of memory or all 24 drives installed.
#1 Best Overall
- Dell PowerEdge R730xd 24B SFF 2U Server
- 2x Intel Xeon E5-2690 v4 2.6Ghz 14-Core (28-cores Total)
- 128GB DDR4 RAM – 4x 1.2TB 10K SAS 2.5” 12Gb/s
- Dell H730P mini 2GB 12Gb/s RAID
- 2x 750W PSU - 2x 10Gb SFP+ 2x 1Gb (RJ45) NIC
See Dell’s R7725xd technical guide and Australia product page for the listed configuration details. The product page is regional; check Dell’s configurator and local availability for current options. Dell notes in the guide that some asterisked features may not have been available at launch.
What Dell’s 1.6 TB/s figure means
Dell’s Exascale specifications describe one R7725xd-based node with two AMD EPYC 9455 processors, 96 total cores, 768 GB of DDR5-6400 memory, and 24 U.2 Gen5 NVMe drives. Dell gives that specific configuration an aggregate memory-bandwidth figure of 1.6 TB/s. It is a memory figure for the stated deployment, not a storage-throughput result and not a universal specification for every R7725xd.
Rank #2
- Dell PowerEdge 13th Generation 12-Bay 3.5 inch LFF 2U Rack Server
- Enterprise Rack Server For Home Use
- 2x Intel Xeon E5-2670 V3 - 2.30GHz 12 Core CPUs
- 128GB PC4-2133 DDR4 Registered Memory
- 12x Empty Drive Trays for 3.5 inch R-Series
The Dell Exascale specifications provide the configuration context. Its processor, memory, drive selection, networking, software version, and stated bandwidth belong together; the number should not be detached from those details.
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What 24 Gen5 NVMe bays do—and do not—tell you
Support for 24 U.2 Gen5 NVMe drives makes the R7725xd a storage-dense platform in a 2U chassis. But the drive count and PCIe generation alone do not establish usable capacity or workload throughput. Results vary with the installed and qualified drives, storage configuration, workload, and test method. The sources cited here do not provide a measured R7725xd storage-throughput result of 300 GB/s.
For an actual deployment or server comparison, assess the full configuration rather than an interface headline:
- Drive form factor, number installed, qualification, and usable capacity.
- NVMe generation and PCIe topology, including how devices connect within the system.
- Processor and memory configuration.
- Network bandwidth where data moves between the server and other systems.
- Benchmark workload and methodology, including whether the result is a device, server, or end-to-end measurement.
- Regional availability, support, and price for the exact configuration.
Dell positions the R7725xd for data analytics, high-performance computing, and high-bandwidth object-scale workloads. Those are vendor-described use cases, not independent benchmark conclusions. Dell’s Australia page calls it a storage-dense server with storage and networking performance, but that marketing description does not quantify throughput.
Quick Recap
Rank #4
- It Support 2.5 inch SAS or SATA drives, Heretom hard drive tray caddy is compatible for PowerEdge 17th-14th Generation, please check your server before purchase. PowerEdge 17th Generation R470, R570, R670, R770, R6715, R6725, R7715, R7725, R7725xd; PowerEdge 16th Generation: R760 R760xs R7615 R7625 R660 R6615 R6625 T560 HS5610 HS5620; PowerEdge 15th Generation: R750 R750xs R7515 R7525 R650 R650xs R6515 R6525 R550 T550 R450; PowerEdge 14th Generation: R7415 R7425 R6415 R740 R740xd R640 R440 R340.
- Compatible with Dell XC Series appliances XC640-4, XC640-4i, XC6420-6, XC740xd-24, XC940-24, XC6420-6.
- Part numbers DXD9H and 0DXD9H.
- You will get 4 trays with 16 srews and 8 sticker labels per purchase.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
