In depth comparison and review of Intel Xeon E3-1275V3 and Intel Xeon E5-2643V2. 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 E3-1275V3 | Intel Xeon E5-2643V2 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E3-1275V3 | Intel Xeon E5-2643V2 |
|---|
| Type | Intel Xeon E3-1275V3 | Intel Xeon E5-2643V2 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1150 Socket | LGA2011 Socket |
| Core Voltage | - | 0.65 V - 1.30 V |
| Manufacturing Process | 22 nm | 22 nm |
| Thermal Design Power | 84 W | 130 W |
| Thermal Specification | - | 74 °C |
| PCI Express Revision | 3.0 | 3.0 |
| PCI Express Configurations | 1x16, 2x8, 1x8, 2x4 | X16, x4, x8 |
| PCI Express Lanes Qty | 16 | 40 |
| Architecture Features | Enhanced SpeedStep technology, Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Fast Memory Access, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, Intel Anti-Theft Technology, 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), Intel Identity Protection Technology, Intel Secure Key, Intel Advanced Vector Extensions 2 (AVX2.0), Intel TSX-NI, Intel Stable Image Platform Program (SIPP), Intel OS Guard | SpeedStep technology, Hyper-Threading Technology, Intel Virtualization Technology, Intel Turbo Boost Technology |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | 6-core |
|---|---|---|
| Number of Threads | 8 threads | 12 threads |
| Clock Speed (Frequency) | 3.5 GHz | 3.5 GHz |
| Max Turbo Speed | 3.9 GHz | 3.8 GHz |
| Bus Speed | - | 1866 MHz |
| CACHE MEMORY |
|---|
| Cache | 8 MB | 25 MB |
|---|---|---|
| Cache Memory Details | Smart Cache - 8 MB | 25 MB |
| Installed Size | 8 MB | 25 MB |
| INTEGRATED GRAPHICS (GPU) | Intel Xeon E3-1275V3 | Intel Xeon E5-2643V2 |
|---|
| Type | Intel HD Graphics P4600 | - |
|---|---|---|
| Base Frequency | 350 MHz | - |
| Max Dynamic Frequency | 1.25 GHz | - |
| Features | Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video, Triple Display Capable | - |
| MISCELLANEOUS | Intel Xeon E3-1275V3 | Intel Xeon E5-2643V2 |
|---|
| Included Accessories | - | Passive heatsink |
|---|---|---|
| Compliant Standards | - | RoHS |
| Service & Support | - | Limited warranty - 1 year |
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