Side by side comparison and review of Intel Xeon E5-4650 and Intel Xeon E5540. 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 E5-4650 | Intel Xeon E5540 |
|---|
| Product Type | Processor | Processor |
|---|---|---|
| Packaged Quantity | 2 (specifications are for single item) | - |
| PROCESSOR | Intel Xeon E5-4650 | Intel Xeon E5540 |
|---|
| Type | Intel Xeon E5-4650 | Intel Xeon E5540 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA2011 Socket | LGA1366 Socket |
| Core Voltage | 0.6 V - 1.35 V | 0.75 V - 1.35 V |
| Manufacturing Process | 32 nm | 45 nm |
| Thermal Design Power | 130 W | 80 W |
| Thermal Specification | - | 76 °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, Intel Turbo Boost Technology, Intel Dynamic Acceleration |
| PERFORMANCE |
|---|
| Number of Cores | 8-core | Quad-Core |
|---|---|---|
| Number of Threads | 16 threads | 8 threads |
| Clock Speed (Frequency) | 2.7 GHz | 2.53 GHz |
| Max Turbo Speed | 3.3 GHz | 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 | 20 MB | L2 - SLC NAND Flash - 8 MB |
| Installed Size | 20 MB | 8 MB |
| Type | - | SLC NAND Flash |
| RAM |
|---|
| Technology | - | DDR3 SDRAM - 1066 MHz |
|---|
| EXPANSION & CONNECTIVITY | Intel Xeon E5-4650 | Intel Xeon E5540 |
|---|
| Compatible Slots | 1 x processor - LGA2011 Socket | 1 x processor |
|---|
| MISCELLANEOUS | Intel Xeon E5-4650 | Intel Xeon E5540 |
|---|
| Included Accessories | Passive heatsink | Heat sink, voltage regulator module |
|---|---|---|
| Compliant Standards | Halogen-free | RoHS |
| Service & Support | Limited warranty - 1 year | Limited warranty - 1 year - on-site |
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