The Dell PowerEdge R670 excels in 1U density with dual 4th Gen Intel Xeon Scalable CPUs, outperforming the R660’s single-CPU focus while matching the R760’s hybrid storage through NVMe bays. Ideal for latency-sensitive workloads, it balances compute/memory ratios better than R660 but lacks the R760’s 24-drive bulk storage capacity. Wecent recommends R670 for virtualization clusters needing compact power.
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What are the key differences between R670, R660, and R760?
The R670 (1U dual-CPU) targets high-throughput apps, while the R660 (1U single-CPU) suits edge computing. The R760 (2U) prioritizes storage with 24 SAS/SATA/NVMe bays. R670 supports 3TB DDR5 vs. R660’s 2TB, while R760 offers PCIe 5.0 x8 slots for GPU/FPGA acceleration.
Beyond raw specs, the R670 fills a niche between single-socket efficiency and 2U expandability. Its dual 350W CPUs handle 32 cores each—ideal for VMware clusters—whereas the R660 maxes out at 24 cores. Thermal design is critical here: the R670’s 1U chassis requires Wecent’s optimized airflow kits for sustained 100% load. For example, a video rendering farm might pick R760s for GPU density but choose R670s for AI inference tasks needing low-latency memory. Pro Tip: Don’t mix R670 and R760 in the same rack—their differing depth (29.5” vs 30.9”) complicates cabling.
| Model | CPU Sockets | Max RAM |
|---|---|---|
| R670 | 2 | 3TB DDR5 |
| R660 | 1 | 2TB DDR5 |
| R760 | 2 | 4TB DDR5 |
The R670, R660, and R760 are three server models with different strengths. The R670 is a 1U dual-CPU server designed for high-performance tasks, while the R660 is a 1U single-CPU server ideal for edge computing and lighter workloads. The R760, a 2U model, focuses on storage, offering up to 24 drive bays for various types of storage. The R670 can support up to 3TB of memory, while the R660 has a maximum of 2TB, and the R760 goes up to 4TB of memory. For accelerating tasks like AI or graphics, the R670 and R760 have options for specialized hardware, with the R670 focusing on memory speed and the R760 offering more GPU support.
WECENT can provide tailored solutions to integrate these servers into your infrastructure, ensuring optimal performance for specific tasks. The R670 and R760 are designed for different use cases—R670 is better for applications like AI inference, while the R760 is more suited to large data processing or GPU-heavy tasks. Both the R670 and R760 can benefit from WECENT’s airflow kits to optimize their cooling performance under full load.
How does storage capacity vary across these models?
The R760 leads with 24 x 2.5” or 12 x 3.5” bays, while the R670 offers 10 NVMe/SATA. R660 has 8 bays. R760’s front-loaded NVMe bays reduce latency for HPC, whereas R670’s hybrid slots suit mixed SQL workloads. All support PERC 12 controllers.
Storage isn’t just about quantity—it’s about configuration flexibility. The R760’s 2U footprint lets it host 24 SAS SSDs at 15.36TB each, delivering 368TB raw. But what if you need blazing random access? The R670’s 10 x NVMe Gen5 drives hit 14GB/s throughput, beating R760’s 12 x Gen4 (10GB/s). Wecent often deploys R670 for financial trading systems where microseconds matter. Warning: Don’t populate all NVMe bays without upgrading power supplies—350W CPUs plus 10 drives demand 1600W PSUs.
| Model | Drive Bays | Max Raw Storage |
|---|---|---|
| R670 | 10 | 153.6TB |
| R660 | 8 | 122.8TB |
| R760 | 24 | 368TB |
Which model offers better networking capabilities?
The R670 and R760 include dual 25GbE ports, while R660 uses 10GbE. R670 adds OCP 3.0 slots for 100GbE adapters, critical for ML training. R760’s PCIe 5.0 x16 slots better suit InfiniBand deployments. All support SmartFabric Director for automated network tuning.
Networking often becomes the bottleneck in HPC environments. While the R660’s 10GbE suffices for regional offices, the R670’s OCP 3.0 lets you slot in ConnectX-7 adapters for 400GbE—vital for distributed AI models. Practically speaking, if you’re running MPI clusters, R760’s extra PCIe lanes allow dual 200Gb InfiniBand without hogging GPU slots. Pro Tip: Use Wecent’s pre-tested NIC profiles to avoid driver conflicts when upgrading firmware.
How do power and thermal requirements differ?
R670 peaks at 750W per PSU vs. R660’s 500W. R760 needs 1100W for GPU loads. R670’s 1U design requires 38°C ambient cooling—tougher than R760’s 2U airflow. Wecent’s liquid-cooled doors can cut R670’s thermal stress by 50%.
Power efficiency separates these models in dense racks. The R660 sips 300W under typical loads, making it ideal for edge sites. But cramming dual Xeons into the R670’s 1U chassis pushes thermal design power (TDP) to 560W—necessitating perforated front doors. For example, a cloud provider using R670s would need 25kW racks instead of 15kW for R660s. Always cross-check your PDUs: 220V circuits are mandatory for high-wattage configurations.
What’s the cost comparison between these servers?
Base R660 starts at $3,200, R670 at $6,500, and R760 at $8,800. However, Wecent’s bulk pricing drops R760 to $7,300 with 3-year ProSupport. R670 delivers 40% better $/core than R760 but trails in $/TB storage.
Upfront cost isn’t the whole story. The R670’s 2-year TCO for a 50-node Kubernetes cluster runs 18% lower than R760s due to rack density. But the R760’s storage advantage pays off in big data scenarios—storing 1PB needs 3 R760s vs. 7 R670s. Always model workloads 5 years out: R760’s PCIe 5.0 future-proofs better for next-gen GPUs, while R670’s DDR5 is upgradeable to 6TB by 2025.
Also check:
Which CPU Offers the Best Performance per Dollar in 2025 for Enterprise IT Solutions?
Which Dell PowerEdge Server Offers the Best NVMe and Storage Capacity: R660, R670, or R760?
Which Model Is Best for Virtualization and HCI Workloads?
What Are the Key Differences in Memory Capacity and DIMM Configuration?
What Are the Power Consumption and PSU Options for Each Server Model?
Wecent Expert Insight
FAQs
Can R660 handle database workloads?
Only light ones—its single CPU and 8 drives limit IOPS. Use R670 or R760 for OLTP beyond 5,000 transactions/sec.
Is R760 backward-compatible with older PCIe cards?
Yes, but PCIe 5.0 slots auto-negotiate down. Wecent tests all legacy adapters to prevent compatibility issues.
Do R670 servers support GPU acceleration?
Only low-profile GPUs like NVIDIA A2. For A100/H100, choose R760 with full-height PCIe 5.0 x16 slots.
What are the main differences between Dell PowerEdge R670, R660, and R760?
The R670 is a 1U server optimized for high NVMe density and latency-sensitive workloads. The R660, also 1U, suits general-purpose enterprise tasks with moderate storage. The R760 is a 2U server offering higher storage capacity, support for double-width GPUs, and flexibility for demanding workloads like data analytics and GPU-accelerated applications.
Which Dell PowerEdge server is best for GPU-intensive tasks?
The PowerEdge R760 is ideal for GPU-intensive workloads, supporting double-width GPUs up to 350W and multiple single-width cards. Its 2U form factor allows for higher expansion and storage flexibility, making it suitable for AI, virtualization, and data analytics applications, whereas R660 and R670 are limited to single-width GPU support.
What storage configurations do the R670, R660, and R760 offer?
The R670 offers up to 10 front-accessible NVMe bays for dense storage in a 1U chassis. The R660 supports up to 10 x 2.5″ drives plus two rear disks. The R760 supports up to 24 drives with direct NVMe or PERC 12 RAID options, providing maximum flexibility for enterprise storage needs.
Which server is most suitable for virtualization clusters?
The R670 is optimized for high-density virtualization, balancing compute, memory, and storage in a compact 1U form. While the R660 handles general workloads and the R760 suits demanding, versatile tasks, the R670 delivers superior performance for latency-sensitive virtualized environments, making it a top choice for dense data center deployments.
What are the key specifications of the Dell PowerEdge R760?
The Dell PowerEdge R760 is a 2U rackmount server supporting dual 4th generation Intel Xeon processors. It can accommodate up to 24 NVMe drives, offering high storage density and flexibility. Its 2U chassis also allows support for double-width GPUs, making it suitable for demanding workloads like virtualization, AI, and data analytics.