In depth comparison and review of Intel Xeon E3-1275V2 and Intel Celeron B820. 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 Celeron B820 |
|---|
| Product Type | Processor | Processor (mobile) |
|---|
| PROCESSOR | Intel Xeon E3-1275V2 | Intel Celeron B820 |
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| Type | Intel Xeon E3-1275V2 | Intel Celeron B820 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1155 Socket | PGA988 Socket |
| Manufacturing Process | 22 nm | 32 nm |
| Thermal Design Power | 69 W | 35 W |
| Thermal Specification | - | 100 °C |
| PCI Express Revision | 3.0 | 2.0 |
| PCI Express Configurations | 1x16+1x4, 1x8+3x4, 2x8+1x4 | 1x16, 2x8, 1x8+2x4 |
| PCI Express Lanes Qty | - | 16 |
| 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, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Fast Memory Access, Intel Flex Memory Access, Thermal Monitoring Technologies, Idle States |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | Dual-Core |
|---|---|---|
| Number of Threads | 8 threads | 2 threads |
| Clock Speed (Frequency) | 3.5 GHz | 1.7 GHz |
| Max Turbo Speed | 3.9 GHz | - |
| 64-bit Computing | Yes | - |
| CACHE MEMORY |
|---|
| Cache | 8 MB | 2 MB |
|---|---|---|
| Cache Memory Details | Smart Cache - 8 MB | L3 - 2 MB |
| Installed Size | 8 MB | 2 MB |
| INTEGRATED GRAPHICS (GPU) | Intel Xeon E3-1275V2 | Intel Celeron B820 |
|---|
| Type | Intel HD Graphics P4000 | Intel HD Graphics with Dynamic Frequency |
|---|---|---|
| Base Frequency | 650 MHz | 650 MHz |
| Max Dynamic Frequency | 1.25 GHz | 1.05 GHz |
| Features | Dual Display Capable, Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video | Intel FDI |
| MISCELLANEOUS | Intel Xeon E3-1275V2 | Intel Celeron B820 |
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| Service & Support | Limited warranty - 3 years | - |
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