Replacement for E3-1280: Drop-In Alternatives We Stock
Looking for a replacement for the E3-1280 (E3-1280 - Intel Xeon Quad Core 3.50GHz 5.00GT/s DMI 8MB L3 Cache Processor)? Pro Disk Network ships Intel drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the E3-1280
| SKU | E3-1280 |
|---|---|
| Product | E3-1280 - Intel Xeon Quad Core 3.50GHz 5.00GT/s DMI 8MB L3 Cache Processor |
| Current price | $259.50 |
| Stock status | In Stock |
| Detail page | View E3-1280 › |
Drop-in replacements for E3-1280
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
638636-001 - HP 3.50GHz 5GT/s DMI 8MB L3 Cache Socket LGA1155 Intel Xeon E3-1280 Quad-Core Processor
SKU: 638636-001
Price: $231.28
641916-L21 - HP 3.50GHz 5GT/s DMI 8MB L3 Cache Socket LGA1155 Intel Xeon E3-1280 Quad-Core Processor
SKU: 641916-L21
Price: $254.42
645836-L21 - HP 3.50GHz 5GT/s DMI 8MB L3 Cache Socket LGA1155 Intel Xeon E3-1280 Quad-Core Processor
SKU: 645836-L21
Price: $254.42
SR00R - Intel Xeon Quad Core E3-1280 3.5GHz 8MB SMART Cache 5.0GT/s DMI Socket LGA-1155 32NM 95W Processor
SKU: SR00R
Price: $259.50
BX80623E31280 - Intel Xeon E3-1280 Quad Core 3.5GHz 8MB SMART Cache 5GT/s DMI Socket LGA-1155 32NM 95W Processor
SKU: BX80623E31280
Price: $357.09
SR150 - Intel Xeon E3-1280 v3 Quad Core 3.60GHz 5.00GT/s DMI 8MB L3 Cache Socket FCLGA1150 Processor
SKU: SR150
Price: $402.11
725286-001 - HP 3.50GHz 5GT/s DMI 8MB L3 Cache Socket LGA1155 Intel Xeon E3-1280 Quad-Core Processor
SKU: 725286-001
Price: $507.51
46W6608 - IBM 3.60GHz 5.00GT/s DMI 8MB L3 Cache Intel Xeon E3-1280 v3 Quad Core Processor
SKU: 46W6608
Price: $531.36
721863-001 - HP 3.50GHz 5GT/s DMI 8MB L3 Cache Socket LGA1155 Intel Xeon E3-1280 Quad-Core Processor
SKU: 721863-001
Price: $568.36
03T6754 - Lenovo 3.60GHz 5.00GT/s DMI 8MB L3 Cache Intel Xeon E3-1280 v3 Quad Core Processor
SKU: 03T6754
Price: $583.01
E3-1280V3 - Intel Xeon E3-1280 v3 Quad Core 3.60GHz 5.00GT/s DMI 8MB L3 Cache Socket FCLGA1150 Processor
SKU: E3-1280V3
Price: $952.71
CM8064601467001 - Intel Xeon E3-1280 v3 Quad Core 3.60GHz 5.00GT/s DMI 8MB L3 Cache Socket FCLGA1150 Processor
SKU: CM8064601467001
Price: $990.07
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.