In depth comparison and review of Intel Xeon E3-1280 and Intel Pentium G640. 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 E3-1280 | Intel Pentium G640 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E3-1280 | Intel Pentium G640 |
|---|
| Type | Intel Xeon E3-1280 | Intel Pentium G640 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | - |
|---|---|---|
| Compatible Processor Socket | LGA1155 Socket | LGA1155 Socket |
| Manufacturing Process | 32 nm | 32 nm |
| Thermal Design Power | 95 W | 65 W |
| Thermal Specification | 73.6 °C | 69.1 °C |
| PCI Express Revision | 2.0 | 2.0 |
| PCI Express Lanes Qty | 20 | - |
| Architecture Features | Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology | 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) |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | Dual-Core |
|---|---|---|
| Number of Threads | 8 threads | 2 threads |
| Clock Speed (Frequency) | 3.5 GHz | 2.8 GHz |
| Max Turbo Speed | 3.9 GHz | - |
| 64-bit Computing | Yes | - |
| CACHE MEMORY |
|---|
| Cache | 8 MB | 3 MB |
|---|---|---|
| Cache Memory Details | L3 - 8 MB L2 - 1 MB |
Smart Cache - 3 MB |
| Installed Size | 8 MB | 3 MB |
| INTEGRATED GRAPHICS (GPU) | Intel Xeon E3-1280 | Intel Pentium G640 |
|---|
| Type | - | Intel HD Graphics |
|---|---|---|
| Base Frequency | - | 850 MHz |
| Max Dynamic Frequency | - | 1.1 GHz |
| Features | - | Dual Display Capable, Intel FDI |
| EXPANSION & CONNECTIVITY | Intel Xeon E3-1280 | Intel Pentium G640 |
|---|
| Compatible Slots | 1 x processor | - |
|---|
| MISCELLANEOUS | Intel Xeon E3-1280 | Intel Pentium G640 |
|---|
| Included Accessories | Heat sink | - |
|---|---|---|
| Compliant Standards | RoHS | Lead-Free, halogen-free |
| Service & Support | Limited warranty - 3 years | Limited warranty - 3 years |
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