English
Launched in March 2026, Dell PowerEdge R4715 and R5715 function as an integrated configurable server matrix, instead of two independent devices. Built for SMBs and channel partners, this portfolio covers two chassis, four AMD EPYC 9005 Zen5 CPUs, diversified storage options and complete Dell lifecycle management tools, enabling precise infrastructure matching to real workload demands. Unlike separate single-server reviews, this guide focuses on cross-model and cross-CPU performance differences for mainstream SMB workloads.
Core Platform Advantages
Broad Hypervisor Compatibility
Both servers support mainstream virtualization platforms including VMware ESXi, Microsoft Hyper-V, Proxmox VE and Linux KVM with unified management workflows. This multi-hypervisor compatibility fits modern SMBs that run mixed virtualization stacks without full platform standardization.
Dell Ecosystem Value for SMBs & Channel Partners
Beyond hardware specs, Dell’s mature 17th Gen PowerEdge ecosystem brings greater operational value for understaffed SMB IT teams and value-added resellers. Unified iDRAC10 and OpenManage Enterprise management tools cover the full PowerEdge lineup, eliminating repeated tool learning during server fleet expansion. Built-in remote maintenance, firmware update and Redfish API automation cut on-site maintenance needs.
Standard security features include silicon root of trust, signed firmware and FIPS-certified TPM 2.0. Global ProSupport services and stable, predictable supply chain lead times further reduce deployment and operational risks for global channel businesses.
Hardware Overview & Specification Comparison
The 1U R4715 prioritizes compute density with 3 PCIe Gen5 slots and flexible NVMe/SATA drive bays, while the 2U R5715 focuses on storage expansion with one extra PCIe Gen5 slot and up to 16 front drive bays supporting maximum 288TB raw HDD capacity. Both models adopt air cooling, uniform iDRAC10 management and high-efficiency 800W/1100W power supplies, with no GPU/DPU support for targeted SMB scenarios.
They serve as entry-level AMD servers in Dell’s product stack. Users with higher performance demands can seamlessly upgrade to R6715/R7715 with accelerator support and more powerful CPUs, retaining consistent management and support systems.
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Specification
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PowerEdge R4715
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PowerEdge R5715
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Form Factor
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1U Rack Server
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2U Rack Server
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Processor
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Single AMD EPYC 9005 Series CPU (8-32 cores)
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Memory
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24 DDR5 RDIMM slots, max 1.5TB, 5200 MT/s
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PCIe Gen5 Slots
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3
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4
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Front Storage
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8x U.2 NVMe / 8x 2.5-inch / 4x 3.5-inch drives
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16x 2.5-inch / 12x 3.5-inch drives
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Power Supply
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800W/1100W Platinum/Titanium PSU
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Four AMD EPYC 9005 CPU SKUs & Selection Guidance
All four Zen5 CPUs share identical memory speed and PCIe Gen5 bandwidth, bringing no cross-SKU hardware limitations. Core selection is critical for SMBs due to widespread per-core software licensing covering Windows Server, databases and virtualization tools.
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CPU Model
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Cores
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TDP
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Key Positioning
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9335
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32
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210W
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Top compute performance for CPU-heavy workloads
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9255
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24
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200W
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Best price-performance for database workloads
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9135
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16
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200W
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Matches Windows Server minimum licensed core count
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9015
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8
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125W
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Lowest cost/power for storage-centric workloads
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Extra idle cores lead to continuous redundant licensing costs. SMBs are recommended to adopt right-sized CPUs rather than over-provisioning hardware to cut both upfront and long-term operating expenses.
Performance Test Configurations
R4715 deployed 8x NVMe SSDs in RAID 10 for all-flash testing; R5715 adopted 12x 20TB HDDs in RAID 6 for high-capacity storage testing. Both platforms were equipped with 384GB DDR5 memory and BOSS RAID1 boot storage.
1. HammerDB MariaDB TPC-C Database Test
We tested CPU-intensive and I/O-intensive OLTP transaction workloads for SMB database scenarios:
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R4715 (NVMe Flash): Throughput rises steadily with more cores. 9015 hits 480,818 / 296,105 NOPM; 9135 reaches 737,445 / 493,093 NOPM; 9255 breaks 1 million NOPM for CPU loads; top-tier 9335 delivers peak 1,133,714 NOPM (CPU) and 910,321 NOPM (I/O). NVMe storage never forms performance bottlenecks.
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R5715 (HDD RAID6 + 9015): Peaks at 484,715 NOPM (CPU) and 308,012 NOPM (I/O). Mechanical hard drives hit obvious performance ceilings under high concurrent transactions, limiting further throughput growth.
2. FIO Windows Shared Storage Test
HDD and SSD storage tiers show massive performance gaps, especially for latency-sensitive 4K random workloads critical for multi-user file services:
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R5715 HDD RAID6: Max 3.7GB/s sequential write speed, merely 1,300 random write IOPS with latency over 100ms
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R4715 SSD Array: Over 56GB/s sequential read speed, 4 million+ random write IOPS with sub-millisecond latency
3. Proxmox Backup Server Test
R5715 with 8-core 9015 fits virtual backup target workloads perfectly. The only bottleneck in real deployment was built-in 1GbE network. Upgrading to 10GbE/25GbE via OCP cards can greatly improve backup and restore throughput for large VM datasets.
Conclusion
Dell R4715 and R5715 deliver targeted value via flexible, well-differentiated configurations tailored for SMBs. The all-flash R4715 suits high-performance database and Windows shared storage scenarios, while the HDD-based R5715 fits capacity-heavy backup and archiving workloads. The 24-core 9255 is the optimal balanced choice for mainstream database services.
Matched with Dell’s unified management ecosystem and reliable supply chain, the two servers help SMBs and channel partners avoid hardware over-investment and redundant core licensing costs, achieving accurate workload matching and lower overall IT expenditure.
Beijing Qianxing Jietong Technology Co., Ltd.
Sandy Yang/Global Strategy Director
WhatsApp / WeChat: +86 13426366826
Email: yangyd@qianxingdata.com
Website: www.qianxingdata.com/www.storagesserver.com
Business Focus:
ICT Product Distribution/System Integration & Services/Infrastructure Solutions
With 20+ years of IT distribution experience, we partner with leading global brands to deliver reliable products and professional services.
“Using Technology to Build an Intelligent World”Your Trusted ICT Product Service Provider!
Sandy Yang/Global Strategy Director
WhatsApp / WeChat: +86 13426366826
Email: yangyd@qianxingdata.com
Website: www.qianxingdata.com/www.storagesserver.com
Business Focus:
ICT Product Distribution/System Integration & Services/Infrastructure Solutions
With 20+ years of IT distribution experience, we partner with leading global brands to deliver reliable products and professional services.
“Using Technology to Build an Intelligent World”Your Trusted ICT Product Service Provider!