In depth comparison and review of Intel Xeon E5-2640 and Intel Xeon E5-4640. 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 E5-2640 | Intel Xeon E5-4640 |
|---|
| Product Type | Processor | Processor |
|---|---|---|
| Packaged Quantity | - | 2 (specifications are for single item) |
| PROCESSOR | Intel Xeon E5-2640 | Intel Xeon E5-4640 |
|---|
| Type | Intel Xeon E5-2640 | Intel Xeon E5-4640 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA2011 Socket | LGA2011 Socket |
| Core Voltage | 0.6 V - 1.35 V | 0.6 V - 1.35 V |
| Manufacturing Process | 32 nm | 32 nm |
| Thermal Design Power | 95 W | 95 W |
| Thermal Specification | 73 °C | - |
| PCI Express Revision | 3.0 | 3.0 |
| PCI Express Lanes Qty | 40 | 40 |
| Architecture Features | Enhanced SpeedStep technology, Hyper-Threading Technology, Demand Based Switching, Execute Disable Bit capability, Intel 64 Technology, Intel Trusted Execution Technology, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, Intel AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Intel vPro Technology, Idle States | SpeedStep technology, Execute Disable Bit capability, Intel Trusted Execution Technology, Intel Turbo Boost Technology 2.0, Intel vPro Technology |
| PERFORMANCE |
|---|
| Number of Cores | 6-core | 8-core |
|---|---|---|
| Number of Threads | 12 threads | 16 threads |
| Clock Speed (Frequency) | 2.5 GHz | 2.4 GHz |
| Max Turbo Speed | 3 GHz | 2.8 GHz |
| Bus Speed | 1333 MHz | 1600 MHz |
| 64-bit Computing | Yes | Yes |
| CACHE MEMORY |
|---|
| Cache | 15 MB | 20 MB |
|---|---|---|
| Cache Memory Details | Smart Cache - 15 MB | L3 - 16 MB |
| Installed Size | 15 MB | 20 MB |
| EXPANSION & CONNECTIVITY | Intel Xeon E5-2640 | Intel Xeon E5-4640 |
|---|
| Compatible Slots | 1 x processor - LGA2011 Socket | 1 x processor - LGA2011 Socket |
|---|
| MISCELLANEOUS | Intel Xeon E5-2640 | Intel Xeon E5-4640 |
|---|
| Included Accessories | Cooler (fansink) | - |
|---|---|---|
| Compliant Standards | RoHS | Halogen-free |
| Service & Support | Limited warranty - 1 year - on-site | - |
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