In depth comparison and review of Intel Xeon E3-1280V2 and Intel Pentium G645. 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 E3-1280V2 | Intel Pentium G645 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E3-1280V2 | Intel Pentium G645 |
|---|
| Type | Intel Xeon E3-1280V2 | Intel Pentium G645 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1155 Socket | LGA1155 Socket |
| Manufacturing Process | 22 nm | 32 nm |
| Thermal Design Power | 69 W | 65 W |
| Thermal Specification | - | 69.1 °C |
| PCI Express Revision | 3.0 | 2.0 |
| PCI Express Configurations | 1x16+1x4, 1x8+3x4, 2x8+1x4 | - |
| Architecture Features | Enhanced SpeedStep technology, Hyper-Threading Technology, Intel Virtualization Technology, Intel Trusted Execution Technology, Intel Turbo Boost Technology 2.0 | 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) | 3.6 GHz | 2.9 GHz |
| Max Turbo Speed | 4 GHz | - |
| 64-bit Computing | Yes | - |
| CACHE MEMORY |
|---|
| Cache | 8 MB | 3 MB |
|---|---|---|
| Cache Memory Details | Smart Cache - 8 MB | L3 - 3 MB |
| Installed Size | 8 MB | 3 MB |
| INTEGRATED GRAPHICS (GPU) | Intel Xeon E3-1280V2 | Intel Pentium G645 |
|---|
| Type | - | Intel HD Graphics with Dynamic Frequency |
|---|---|---|
| Base Frequency | - | 850 MHz |
| Max Dynamic Frequency | - | 1.1 GHz |
| Features | - | Dual Display Capable, Intel FDI |
| EXPANSION & CONNECTIVITY | Intel Xeon E3-1280V2 | Intel Pentium G645 |
|---|
| Compatible Slots | 1 x processor - LGA1155 Socket | - |
|---|
| MISCELLANEOUS | Intel Xeon E3-1280V2 | Intel Pentium G645 |
|---|
| Compliant Standards | RoHS | - |
|---|---|---|
| Service & Support | Limited warranty - 3 years | Limited warranty - 3 years |
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