Dell PowerEdge R7725 | 2U EPYC 9005 192-Core Server

The R7725 Is the R7625 Replacement You Have Been Waiting For

Dell’s 2U dual-socket AMD line moved from 4th Gen EPYC (ジェノヴァ, R7625) to 5th Gen EPYC 9005 (Turin-class Zen5) with the PowerEdge R7725. The jump is not incremental: まで 192 Zen5 cores per socket, DDR5 at 6400 MT/秒, 450W-class accelerators, 40x E3.S Gen5 NVMe bays and iDRAC10 management. This page walks the platform spec and the migration path from R7625.

R7625 to R7725: What Changed

特徴	R7625 (previous gen)	R7725
プロセッサー	2x EPYC 4th Gen (Zen4), まで 128 コア	2x EPYC 5th Gen 9005 (Zen5), まで 192 cores per CPU
メモリー	24 Dr5, まで 4800 MT/秒	24 Dr5, まで 6400 MT/秒, 12 CPUごとのチャネル
アクセラレーター	2x 300W double-width / 6x 75W single-width	2x 450W double-width / 6x single-width
Storage front	最大 24x 2.5 インチ	Up to 40x E3.S Gen5 NVMe, 16× 2.5インチ + 8x U.2 NVMe, 24× 2.5インチ
管理	iDRAC9	iDRAC10 with Redfish, Racadm, クイック同期 2, OME APEX AIOps
力	800-3200W options	800-3200W Titanium incl. 3200W 200-240VAC/HVDC, M-CRPS 73.5mm/60mm
重さ	マックス 34.4 kg	マックス 25.1 kg – significantly lighter chassis
深さ	772.13 mm with bezel	802.4 mm with bezel

The 192-core Zen5 ceiling plus 6400 MT/s memory directly benefits data warehouse, eCommerce transaction tiers, databases and HPC – the workloads Dell targets for this platform.

Platform Specifications

属性	R7725
フォームファクタ	2Uラック; 86.8 バツ 482 バツ 802.4 mm with bezel (801.51 mm without); 最大 25.1 kg
プロセッサー	2x 5th Gen AMD EPYC 9005 (Zen5), まで 192 cores per CPU, 500W TDP; CXL 2.0 タイプ 3 メモリ
メモリー	24 DDR5 RDIMM ECC slots (12 CPUごとのチャネル), まで 6400 MT/秒
保管所	Up to 40x E3.S Gen5 NVMe; 16x 2.5 インチ SAS/SATA + 8x U.2 NVMe; 24× 2.5インチ; 12× 3.5インチ; boot via BOSS-N1 DC-MHS (2x M.2 NVMe HW RAID 1)
PCIe	Up to 8x Gen5 x16 slots; rear OCP FLOP (DC-MHS compliant); PCIe link encryption
GPU	Up to 2x 450W double-width or 6x single-width accelerators
レイド	Perc 12/13 フロント, Perc 13 external options; FPGA PESTI support; software RAID N/A
管理	iDRAC10, iDRAC ダイレクト, Redfish RESTful API, Racadm CLI, クイック同期 2, 青梅 + APEX AIOps
安全	TPM 2.0 (FIPS, CC-TCG), 安全な消去, silicon root of trust, 安全なコンポーネントの検証, システムのロックダウン
力	Dual hot-swap redundant: 3200Wチタン (200-240VAC/HVDC), 2400Wチタン, 1800W, 1500W, 1400W -48VDC options; M-CRPS form factor
OS	Ubuntu Server LTS, Windows Server with Hyper-V, RHEL, SLES, ヴイエムウェア ESXi (Dell-certified releases)

Migration Path from R7625

1. Inventory the R7625 fleet: record guest core counts, memory working set and NVMe layout; Zen5’s 192-core ceiling typically halves the node count.
2. Validate the OS layer: confirm hypervisor and RHEL/Ubuntu versions are supported on EPYC 9005 – most 2024+ releases are; older kernels may need a minor bump for Zen5.
3. Move data on Gen5: restore databases onto E3.S Gen5 NVMe; 6400 MT/s DDR5 reduces column-scan and in-memory latencies.
4. Cut over per workload: eCommerce and data warehouse tiers first, HPC batch last, keeping one R7625 node as rollback until the window closes.

Where the 450W GPU Headroom Matters

The R7625 topped out at 300W double-width accelerators; the R7725 supports 2x 450W cards. For inference and fine-tuning nodes that need a single high-power accelerator plus dual-socket compute, the R7725 replaces a separate GPU box – see our on-prem AI inference guide for accelerator cluster patterns. The 3200W Titanium PSU pair handles the worst-case power envelope with 1+1 冗長性.

Detailed Specs, Dimension by Dimension

ネットワーキング

• Rear OCP FLOP slot (DC-MHS compliant) carries OCP NIC 3.0 mezzanine modules
• Up to 8x PCIe Gen5 x16 slots for full-height NICs and DPUs at 32 GT/s
• PCIe link encryption supported end-to-end for sensitive fabrics

Front and Rear I/O

• Front I/O per config: USB and iDRAC Direct (Micro-AB) on the front panel; optional metal bezel
• 後方: dedicated iDRAC Ethernet port, USB ports and video output; OCP FLOP on the DC-SCM
• No LCD – this platform uses the metal bezel option for rack identification

Riser and PCIe Architecture

• 8x Gen5 x16 slots across risers; plan slot-to-NUMA affinity for latency-sensitive database traffic
• Bifurcation supported for x8/x8 and lower splits where the riser allows

RAID and Boot

• Front PERC 12 (H965i) or PERC 13 class; external PERC 13 for expansion enclosures
• BOSS-N1 DC-MHS: ハードウェアRAID 1 with 2x M.2 NVMe (480GB/960GB) for OS boot
• Software RAID not offered – use PERC or hardware controllers for parity RAID

安全

• TPM 2.0 FIPS and CC-TCG certified, 安全な消去, silicon root of trust
• Secured Component Verification hardware integrity check at boot
• システムのロックダウン (requires iDRAC10 Enterprise or Datacenter entitlement)

管理

• iDRAC10: remote console, バーチャルメディア, telemetry streaming, lifecycle controller
• Redfish RESTful API, Racadm CLI, iDRAC ダイレクト, クイック同期 2 wireless
• OpenManage Enterprise with APEX AIOps Observability, Power Manager, Services and Update Manager plugins; vCenter and System Center integrations; Ansible and Terraform modules

Physical and Environmental

• 2Uラック; 86.8 バツ 482 バツ 802.4 んん (ベゼル付き), 801.51 mm without; 最大 25.1 kg
• Operating ambient 10-35 deg C standard; DLC option for high-TDP CPU SKUs

オペレーティングシステム

• ヴイエムウェア ESXi, Windows Server with Hyper-V, RHEL, SLES, Ubuntu Server LTS – Dell-certified matrix

力

• Dual hot-swap redundant PSUs, M-CRPS 73.5mm and 60mm: 3200Wチタン (200-240VAC/240HVDC), 2400Wチタン, 1800Wチタン, 1500W, 1400W -48VDC and 1100W/800W Titanium/Platinum options
• Worst-case builds with 2x 500W CPUs and 2x 450W GPUs need the 3200W pair – verify PDU current at 200-240V

Workload Profiles

ワークロード	Why the R7725
Data warehouse / eCommerce	192-core Zen5 per socket, 6400 MT/s DDR5 and 40x E3.S Gen5 NVMe sustain high concurrent scans and OLTP spikes
Databases (SQL, オラクル, PostgreSQL)	12 memory channels per CPU; CXL 2.0 タイプ 3 expansion for very large buffer pools
HPC and batch	Highest core-per-rack ratio in the 2U AMD line; 500W TDP CPUs with DLC option
AI inference with a 450W accelerator	2x 450W double-width GPU support in the same chassis as dual-socket compute

Deployment Notes

• Rack depth: 802.4 mm with bezel – verify rail depth in 1000mm cabinets; cable management arms optional.
• 冷却: confirm the air-cooling configuration table for 500W TDP CPUs; order DLC where the guide requires it.
• Firmware baseline: use the latest iDRAC10 firmware and Dell certified OS matrix before production cut-over.
• License note: VMware and RHEL licenses price per core – the 192-core ceiling demands a core-license budget conversation before, not after, procurement.

Ordering Checklist

• Backplane choice: 40x E3.S vs 16x 2.5-inch + 8x U.2 NVMe vs 24x 2.5-inch – each is a different SKU; confirm the bay plan before quoting.
• CPU SKU: specify core count (まで 192) and TDP class; 500W SKUs may require DLC – Dell’s configurator will flag it.
• Memory speed: 6400 MT/s requires 1 DPC class DIMMs; mixing ranks or 2 DPC drops to the platform’s supported speed.
• PSU pair: 3200W Titanium for GPU/large-NVMe builds, 1400W -48VDC for DC data centers; order matching pairs only.
• iDRAC entitlement: Enterprise tier for System Lockdown, telemetry and virtual media.
• Spares: one BOSS-N1 module, one 3200W PSU and one E3.S drive per cluster keeps MTTR in minutes.

Deployment Snapshot: Data Warehouse Refresh

A retailer replaced four R7625 nodes with two R7725s for its eCommerce data warehouse. Zen5 core count allowed the same workload on half the nodes, Dr5 6400 MT/s cut ETL job runtime by roughly a third, and the 40x E3.S Gen5 NVMe layout carried the fact tables at Gen5 bandwidth. After decommissioning the legacy nodes, rack power dropped from 7.6kW to 4.1kW and the warehouse query SLA improved – a pattern we see consistently on the 9005 migration.

購入に関するよくある質問

• What is the biggest NVMe configuration? 40x E3.S Gen5 front bays – enough for a 2U all-NVMe database or analytics node.
• Does it support CXL memory? はい, CXL 2.0 タイプ 3 メモリデバイス (not Type 1/2 accelerators).
• Is liquid cooling required? 直接液体冷却 (DLC) is optional and required for certain high-TDP CPU SKUs – specify at quote time.
• Is it compatible with R7625 rails? いいえ – the R7725 has a different depth and rail kit; order the R7725-specific rails and cable management arms.
• Can it run the same hypervisor as R7625? はい, with a firmware and OS-matrix check – ヴイエムウェア ESXi 8 and current RHEL/SLES/Ubuntu releases are certified on EPYC 9005.
• 保証? As an authorized Dell partner we quote factory-direct pricing with 3-year warranty, global shipping and free consultation – including R7625-to-R7725 migration sizing.

と 192 Zen5 cores per socket, 6400 MT/s DDR5 and up to 40x E3.S Gen5 NVMe in a 25.1 kg 2U chassis, the R7725 is the density benchmark for the AMD line. Planning an AMD platform refresh? Contact us for a R7625-to-R7725 migration worksheet with core/memory ratios, NVMe layout and PSU sizing, plus a Zen5 core-license budget comparison against your current R7625 fleet, with a per-workload migration sequence and a rollback plan for each node.