In depth comparison and review of Intel Pentium G640 and Intel Xeon E5540. 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 Pentium G640 | Intel Xeon E5540 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Pentium G640 | Intel Xeon E5540 |
|---|
| Type | Intel Pentium G640 | Intel Xeon E5540 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | - | 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 | 65 W | 80 W |
| Thermal Specification | 69.1 °C | 76 °C |
| PCI Express Revision | 2.0 | - |
| Architecture Features | Enhanced SpeedStep technology, integrated memory controller, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Fast Memory Access, Intel Flex Memory Access, Thermal Monitoring Technologies, Idle States, Intel VT-x with Extended Page Tables (EPT) | Enhanced SpeedStep technology, Demand Based Switching, Intel Virtualization Technology, Intel Turbo Boost Technology, Intel Dynamic Acceleration |
| PERFORMANCE |
|---|
| Number of Cores | Dual-Core | Quad-Core |
|---|---|---|
| Number of Threads | 2 threads | 8 threads |
| Clock Speed (Frequency) | 2.8 GHz | 2.53 GHz |
| Max Turbo Speed | - | 2.8 GHz |
| Bus Speed | - | 1066 MHz |
| 64-bit Computing | - | Yes |
| CACHE MEMORY |
|---|
| Cache | 3 MB | 8 MB |
|---|---|---|
| Cache Level 1 Size | - | 256 KB |
| Cache Memory Details | Smart Cache - 3 MB | L2 - SLC NAND Flash - 8 MB |
| Installed Size | 3 MB | 8 MB |
| Type | - | SLC NAND Flash |
| RAM |
|---|
| Technology | - | DDR3 SDRAM - 1066 MHz |
|---|
| INTEGRATED GRAPHICS (GPU) | Intel Pentium G640 | Intel Xeon E5540 |
|---|
| Type | Intel HD Graphics | - |
|---|---|---|
| Base Frequency | 850 MHz | - |
| Max Dynamic Frequency | 1.1 GHz | - |
| Features | Dual Display Capable, Intel FDI | - |
| EXPANSION & CONNECTIVITY | Intel Pentium G640 | Intel Xeon E5540 |
|---|
| Compatible Slots | - | 1 x processor |
|---|
| MISCELLANEOUS | Intel Pentium G640 | Intel Xeon E5540 |
|---|
| Included Accessories | - | Heat sink, voltage regulator module |
|---|---|---|
| Compliant Standards | Lead-Free, halogen-free | RoHS |
| Service & Support | Limited warranty - 3 years | Limited warranty - 1 year - on-site |
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