Side by side comparison and review of Intel Xeon E3-1245 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 E3-1245 | Intel Xeon E5540 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E3-1245 | Intel Xeon E5540 |
|---|
| Type | Intel Xeon E3-1245 | Intel Xeon E5540 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1155 Socket | LGA1366 Socket |
| Core Voltage | - | 0.75 V - 1.35 V |
| Manufacturing Process | 32 nm | 45 nm |
| Thermal Design Power | 95 W | 80 W |
| Thermal Specification | 72.6 °C | 76 °C |
| PCI Express Revision | 2.0 | - |
| PCI Express Lanes Qty | 20 | - |
| Architecture Features | Hyper-Threading Technology, Intel Virtualization Technology, Intel Trusted Execution Technology | Enhanced SpeedStep technology, Demand Based Switching, Intel Virtualization Technology, Intel Turbo Boost Technology, Intel Dynamic Acceleration |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | Quad-Core |
|---|---|---|
| Number of Threads | 8 threads | 8 threads |
| Clock Speed (Frequency) | 3.3 GHz | 2.53 GHz |
| Max Turbo Speed | 3.7 GHz | 2.8 GHz |
| Bus Speed | - | 1066 MHz |
| 64-bit Computing | Yes | Yes |
| CACHE MEMORY |
|---|
| Cache | 8 MB | 8 MB |
|---|---|---|
| Cache Level 1 Size | 256 KB | 256 KB |
| Cache Memory Details | L3 - 8 MB | L2 - SLC NAND Flash - 8 MB |
| Installed Size | 8 MB | 8 MB |
| Type | - | SLC NAND Flash |
| RAM |
|---|
| Technology | - | DDR3 SDRAM - 1066 MHz |
|---|
| INTEGRATED GRAPHICS (GPU) | Intel Xeon E3-1245 | Intel Xeon E5540 |
|---|
| Type | Intel HD Graphics P3000 | - |
|---|---|---|
| Base Frequency | 850 MHz | - |
| Max Dynamic Frequency | 1.35 GHz | - |
| Features | Dual Display Capable, Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video | - |
| EXPANSION & CONNECTIVITY | Intel Xeon E3-1245 | Intel Xeon E5540 |
|---|
| Compatible Slots | 1 x processor | 1 x processor |
|---|
| MISCELLANEOUS | Intel Xeon E3-1245 | Intel Xeon E5540 |
|---|
| Included Accessories | Heat sink | Heat sink, voltage regulator module |
|---|---|---|
| Compliant Standards | Halogen-free | RoHS |
| Service & Support | Limited warranty - 3 years | Limited warranty - 1 year - on-site |
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