In depth comparison and review of Intel Xeon E3-1275V2 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 E3-1275V2 | Intel Pentium G640 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E3-1275V2 | Intel Pentium G640 |
|---|
| Type | Intel Xeon E3-1275V2 | Intel Pentium G640 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 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, Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, Intel Fast Memory Access, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, Intel AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Intel vPro Technology, Idle States, Intel VT-x with Extended Page Tables (EPT) | 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 | Smart Cache - 8 MB | Smart Cache - 3 MB |
| Installed Size | 8 MB | 3 MB |
| INTEGRATED GRAPHICS (GPU) | Intel Xeon E3-1275V2 | Intel Pentium G640 |
|---|
| Type | Intel HD Graphics P4000 | Intel HD Graphics |
|---|---|---|
| Base Frequency | 650 MHz | 850 MHz |
| Max Dynamic Frequency | 1.25 GHz | 1.1 GHz |
| Features | Dual Display Capable, Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video | Dual Display Capable, Intel FDI |
| MISCELLANEOUS | Intel Xeon E3-1275V2 | Intel Pentium G640 |
|---|
| Compliant Standards | - | Lead-Free, halogen-free |
|---|---|---|
| Service & Support | Limited warranty - 3 years | Limited warranty - 3 years |
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