Side by side comparison and review of Intel Xeon E5-2420 and Intel Xeon E3-1280. Compare overall performance, core and thread counts, cache memory, speed, power efficiency, dimensions, socket compatibility and other key specifications and features to simplify the choice of your perfect CPU. Our goal is to make it easier for you to decide on the processor that will best meet your expectations by revealing the main differences between the products.
| GENERAL | Intel Xeon E5-2420 | Intel Xeon E3-1280 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E5-2420 | Intel Xeon E3-1280 |
|---|
| Type | Intel Xeon E5-2420 | Intel Xeon E3-1280 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1356 Socket | LGA1155 Socket |
| Core Voltage | 0.65 V - 1.30 V | - |
| Manufacturing Process | 32 nm | 32 nm |
| Thermal Design Power | 95 W | 95 W |
| Thermal Specification | - | 73.6 °C |
| PCI Express Revision | 3.0 | 2.0 |
| PCI Express Lanes Qty | 24 | 20 |
| Architecture Features | SpeedStep technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel Turbo Boost Technology, Intel Trusted Execution Technology | Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology |
| PERFORMANCE |
|---|
| Number of Cores | 6-core | Quad-Core |
|---|---|---|
| Number of Threads | 12 threads | 8 threads |
| Clock Speed (Frequency) | 1.9 GHz | 3.5 GHz |
| Max Turbo Speed | 2.4 GHz | 3.9 GHz |
| Bus Speed | 1333 MHz | - |
| 64-bit Computing | Yes | Yes |
| CACHE MEMORY |
|---|
| Cache | 15 MB | 8 MB |
|---|---|---|
| Cache Memory Details | L3 - 15 MB | L3 - 8 MB L2 - 1 MB |
| Installed Size | 15 MB | 8 MB |
| EXPANSION & CONNECTIVITY | Intel Xeon E5-2420 | Intel Xeon E3-1280 |
|---|
| Compatible Slots | 1 x processor | 1 x processor |
|---|
| MISCELLANEOUS | Intel Xeon E5-2420 | Intel Xeon E3-1280 |
|---|
| Included Accessories | Heat sink | Heat sink |
|---|---|---|
| Compliant Standards | RoHS | RoHS |
| Service & Support | Limited warranty - 1 year | Limited warranty - 3 years |
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