In depth comparison and review of Intel Xeon E5-4640 and Intel Xeon L5520. Compare dimensions, performance, cache memory, number of cores, clock speed, RAM, power efficiency and other important specifications and features to easily choose the right CPU for you. Our goal is to help you uncover differences between the products and find the processor that will best fit your needs.
| GENERAL | Intel Xeon E5-4640 | Intel Xeon L5520 |
|---|
| Product Type | Processor | Processor |
|---|---|---|
| Packaged Quantity | 2 (specifications are for single item) | - |
| PROCESSOR | Intel Xeon E5-4640 | Intel Xeon L5520 |
|---|
| Type | Intel Xeon E5-4640 | Intel Xeon L5520 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA2011 Socket | LGA1366 Socket |
| Power Efficiency | - | Low-Voltage (LV) |
| Core Voltage | 0.6 V - 1.35 V | 0.75 V - 1.35 V |
| Manufacturing Process | 32 nm | 45 nm |
| Thermal Design Power | 95 W | 60 W |
| Thermal Specification | - | 70 °C |
| PCI Express Revision | 3.0 | - |
| PCI Express Lanes Qty | 40 | - |
| Architecture Features | SpeedStep technology, Execute Disable Bit capability, Intel Trusted Execution Technology, Intel Turbo Boost Technology 2.0, Intel vPro Technology | Enhanced SpeedStep technology, Demand Based Switching, Intel Virtualization Technology |
| PERFORMANCE |
|---|
| Number of Cores | 8-core | Quad-Core |
|---|---|---|
| Number of Threads | 16 threads | 8 threads |
| Clock Speed (Frequency) | 2.4 GHz | 2.26 GHz |
| Max Turbo Speed | 2.8 GHz | - |
| Bus Speed | 1600 MHz | 1066 MHz |
| 64-bit Computing | Yes | Yes |
| CACHE MEMORY |
|---|
| Cache | 20 MB | 8 MB |
|---|---|---|
| Cache Level 1 Size | - | 256 KB |
| Cache Memory Details | L3 - 16 MB | L3 - 8 MB |
| Installed Size | 20 MB | 8 MB |
| Type | - | Advanced Smart Cache |
| RAM |
|---|
| Installed RAM Size | - | 1066 MB |
|---|---|---|
| Technology | - | DDR3 SDRAM - 1066 MHz |
| EXPANSION & CONNECTIVITY | Intel Xeon E5-4640 | Intel Xeon L5520 |
|---|
| Compatible Slots | 1 x processor - LGA2011 Socket | 1 x processor |
|---|
| MISCELLANEOUS | Intel Xeon E5-4640 | Intel Xeon L5520 |
|---|
| Included Accessories | - | Heat pipe |
|---|---|---|
| Compliant Standards | Halogen-free | RoHS |
| Service & Support | - | Limited warranty - 1 year |
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